Bola Oboh - Academia.edu (original) (raw)
Papers by Bola Oboh
Egyptian Journal of Medical Human Genetics
Background: The association of obesity with adiponectin gene has been reported in different popul... more Background: The association of obesity with adiponectin gene has been reported in different populations with various inconsistencies. Data from Nigeria is very scanty on the association. Aim: We investigated possible associations of adiponectin gene (ADIPOQ) single nucleotide polymorphisms (SNPs) rs2241766 (+45T>G in exon 2), rs266729 (À11377C>G in promoter) and rs1501299 (+276G>T in intron 2) with body mass index (BMI), waist circumference (WC) and hip circumference (HC), in our cross-sectional study. Subjects and methods: SNPs in ADIPOQ were genotyped in 107 subjects (81 females, 26 males; mean age 22.2 years) by Sequenom MassARRAY. Notably, rs2241766 was removed for not reaching Hardy-Weinberg equilibrium. BMI was calculated (kg/m 2) while WC and HC were measured using standard procedures Results: Linear regression showed that variant rs1501299 was not associated with BMI, WC or HC but rs266729 was associated with increased measures of obesity involving BMI (recessive model; beta coefficient [b], 12.85; 95% confidence interval [
Egyptian Journal of Medical Human Genetics
Background: The association of obesity with adiponectin gene has been reported in different popul... more Background: The association of obesity with adiponectin gene has been reported in different populations with various inconsistencies. Data from Nigeria is very scanty on the association. Aim: We investigated possible associations of adiponectin gene (ADIPOQ) single nucleotide polymorphisms (SNPs) rs2241766 (+45T>G in exon 2), rs266729 (À11377C>G in promoter) and rs1501299 (+276G>T in intron 2) with body mass index (BMI), waist circumference (WC) and hip circumference (HC), in our cross-sectional study. Subjects and methods: SNPs in ADIPOQ were genotyped in 107 subjects (81 females, 26 males; mean age 22.2 years) by Sequenom MassARRAY. Notably, rs2241766 was removed for not reaching Hardy-Weinberg equilibrium. BMI was calculated (kg/m 2) while WC and HC were measured using standard procedures Results: Linear regression showed that variant rs1501299 was not associated with BMI, WC or HC but rs266729 was associated with increased measures of obesity involving BMI (recessive model; beta coefficient [b], 12.85; 95% confidence interval [
Journal of environmental biology / Academy of Environmental Biology, India, 2007
Earthworm, Eudrilus eugeniae, exposed to different concentrations of dump-site soil and petroleum... more Earthworm, Eudrilus eugeniae, exposed to different concentrations of dump-site soil and petroleum effluents exhibited different morbidity and mortality responses. Lake sediments caused varied fluctuations in weight over a 20 day exposure period. Colour changes and mortality up to 15% were observed in earthworms cultured in 100% lake sediment, while weight loss, coiling and sluggish movement were observed in 50% lake water. The effects of 100% dump-site soils were more pronounced as 40% death, swelling, body lesions, stiffening, coiling and low reproduction were recorded. Earthworms were useful as an organism in testing the toxicity of dump-site soils and effluent from a petroleum industry. Dump-site soils and soils polluted with petroleum effluent reduced populations of earthworms and this could subsequently affect other components of the ecosystems associated with earthworm activities.
The relationship between dermatoglyphics and multiple intelligences (MIs) were investigated in th... more The relationship between dermatoglyphics and multiple intelligences (MIs) were investigated in this study. 210 subjects from seven secondary schools in Lagos State, Nigeria were examined on heritable MIs; linguistic, logic/Math, intrapersonal, interpersonal, kinesthetic, musical and natural intelligences. The ten fingerprint patterns were captured with an automated scanner to reveal both fingerprint patterns and ridge count on each finger. Analyses revealed that whorl and ulnar loop were predominant on both right and left fingers. There was a significant correlation between the second fingers of both hands with logic intelligence; ulna loop being the most frequent pattern for those ranked "highly intelligent" in logic (P < 0.05). There was also a significant relationship between mean ridge count of the left fingers and kinesthetic intelligence in male; higher ridge count corresponded with high kinesthetic intelligence. However, there was no significant correlation between fingerprint patterns and students' performance from different tribe (P>0.05). This study has revealed that the mean total ridge count of left fingers can indicate the level of kinesthetic intelligence in male and ulnar loop pattern on the second finger of both hands and consequently implies high heritable logic intelligence. Further studies with other forms of dermatoglyphic indices and larger sample size are recommended to unravel more association between dermatoglyphics and MIs.
Euphytica, 1990
Breeders usually obtain information on a large number of traits in their breeding and selection p... more Breeders usually obtain information on a large number of traits in their breeding and selection programmes. However, since some or many of these traits could be related, it is desirable to reduce the number being handled to the barest minimum without sacrificing efficiency. Breeders often use correlations, stepwise multiple regressions and path coefficient analyses to determine the nature of relationships among such characteristics. The objective of this study was to use these statistical methods to determine traits that could be useful in predicting number of bunches (NB), fresh fruit bunch yield (FFB) and mean bunch weight (MBW) for 13 backcross progenies of oil palm (Elaeis sp .) grown in four replications with 12 palms per replication. Data were collected over a period of 3 or 11 years, depending on the trait. Progeny means and individual palm data, averaged across replications and years, were used for each of these analyses. Results showed that correlations involving individual palm data were similar to the progeny mean correlations. Five to seven traits accounted for about 70-90% of the variations in the dependent variables. Traits that showed the highest correlations with the dependent variables always accounted for the largest proportion of the variation (r 2) in multiple regression models, but did not always have the highest direct effect (i .e. path coefficients) in path analysis of the dependent trait. Number of leaves per palm had the highest correlation (r = 0 .729) with, and accounted for 53 .2% of the variation in NB. Path analysis however showed that percentage fruit per bunch (% F/B) was the most important determinant of NB. It exerted the highest direct effect of 0 .537. The highest correlation with FFB involved number of leaves (r = 0 .660), which, in multiple regression models also accounted for the largest proportion (44 .0%) of the variation in FFB. Path analysis showed that percentage mesocarp per fruit gave the highest direct effect (p =-0 .974) for this trait. It was concluded that various combinations of number of leaves per palm, sex-ratio, percentage fruit per bunch and percentage mesocarp per fruit would be effective as indirect selection criteria for NB, FFB and MBW in this set of material .
Solanum L., is the largest genus of the family Solanaceae with over 2,000 species. Considering th... more Solanum L., is the largest genus of the family Solanaceae with over 2,000 species. Considering their worldwide distribution, a remarkably high level of morphological diversity has manifested at the species, the cultivar and the generic levels. This coupled with the crossability affinities between S. melongena and other distantly related Solanum species producing fertile F1 hybrids makes classification much more complicated. This extreme diversity of the species of Solanum has been attributed to its great antiquity, as well as its extraordinary rate of speciation. This study explored and determined the levels of both inter and intra genetic relationships as well as variability among vegetable Solanum and wild related species collected from Southern Nigeria. Forty nine samples representing 12 different species of vegetable Solanum and related species were randomly collected and studied. Data obtained from measurement of thirty seven quantitative and qualitative phenotypic characters w...
Egyptian Academic Journal of Biological Sciences, B. Zoology, Nov 1, 2019
African Elephants, the largest living terrestrial mammals (Thouless et al., 2016), are keystone s... more African Elephants, the largest living terrestrial mammals (Thouless et al., 2016), are keystone species that play a pivotal role in structuring both plant and animal communities (Stephenson, 2007). They are closely associated with the social and cultural aspects of people; a factor that could be harnessed to promote its conservation (Reddy and Workneh, 2014). Elephant numbers and ranges have declined greatly and most elephant populations in Nigeria are in small, fragmented, relict populations (Obot
Annual Research & Review in Biology
Aim: This study investigated relatedness among three indigenous chicken types using morphological... more Aim: This study investigated relatedness among three indigenous chicken types using morphological features and morphological trait interdependence within three indigenous poultry species in Nigeria. Study Design: A complete Random sample design was employed in this study to investigate morphological relatedness. Place and Duration of the Study: Birds of reproductive age were sampled from 12 states across Nigeria between February 2013 and November 2015. Methodology: Morphological traits were measured according to the FAO description. Nearest neighbor analyses (hierarchical cluster) were done using SPSS 23.0 version. Results: The nearest neighbor analyses showed that higher degree of relatedness exists between the wild type chicken and the frizzle feather indigenous chicken type in Nigeria. Traits interdependence was observed between and among the different morphological traits within the different poultry species. Conclusion: The characters measured could be of useful genetic importa...
... Degrading Potentials of Bacteria Isolated from a Nigerian Bitumen (Tarsand) Deposit Bola O. O... more ... Degrading Potentials of Bacteria Isolated from a Nigerian Bitumen (Tarsand) Deposit Bola O. Oboh 1, Matthew O. Ilori 2 ... in hydrocarbon degradation, particularly Pseudomonas and Alcaligenes by several workers (Amund and Adebiyi, 1991; Atlas, 1992; Nwachukwu and Ugoji ...
In an effort to enhance crop production in crude oil contaminated soils, the effect of the additi... more In an effort to enhance crop production in crude oil contaminated soils, the effect of the addition of cow dung on the growth and performance of Glycine max grown in soil contaminated with various concentrations of crude oil were investigated in this study. There was a general improvement on the growth, dry weight, chlorophyll content, leaf area and pod production of the crop by the addition of cow dung to crude oil polluted soil. The performance of the crop also improved as the period of study increased suggesting that the toxicity of crude oil to the crop reduced as the period of study increased. Statistical differences (P>0.05) were noticed among the days of sampling for some of the growth and performance indices measured suggesting that the period of study affected the performance of such indices. The findings of this study show that addition of cow dung to crude oil contaminated soil makes such contaminated soils useful for agricultural activities. (Nature and Science. 2008;...
Enhanced remediation of crude oil polluted soil by Glycine max through augmentation of such soil ... more Enhanced remediation of crude oil polluted soil by Glycine max through augmentation of such soil with cow dung was evaluated in this study. The soil was contaminated artificially with 25g, 50g and 75g crude oil. The total petroleum hydrocarbon content, the soil pH, moisture and organic matter contents of the soil were determined. More TPH was lost from soils augmented with cow dung than from the non-augmented soil. The pH, moisture content and organic matter content were more in the augmented soils than from the non-augmented soil. Significant differences were noticed between the augmented soils and the non-augmented soil (p<0.05, p<0.01, p<0.001). The results obtained in this study show that augmenting crude oil polluted soils with cow dung will enhance remediation and restoration of crude oil polluted soil.
Research Journal of Environmental Toxicology
International Journal of Plant Breeding and Genetics, 2007
Research Journal of …, 2012
Research Journal of Environmental and Earth Sciences 4(4): 413-418, 2012 ISSN: 2041-0492 ©Maxwell... more Research Journal of Environmental and Earth Sciences 4(4): 413-418, 2012 ISSN: 2041-0492 ©Maxwell Scientific Organization, 2012 Submitted: December 10, 2011 Accepted: January 31, 2012 Published: April 15, 2012 Corresponding Author: Kelechi L. Njoku, Department of ...
Morphological variation was studied within earthworm species - Eudrilus eugeniae populations coll... more Morphological variation was studied within earthworm species - Eudrilus eugeniae populations collected from 14 different locations within Lagos State in Nigeria. Mature earthworms were identified by the presence of the clitellum and position of clitellum assisted in specie identification. Morphometric data collected on the earthworms include body weight, length of clitellum, body size diameter, total number of segments and body volume. Results from the statistical analysis showed that the earthworms though of same species were separated into 3 distinct groups based on the morphometirc parameters and not soil type. These 3 distinct groups may represent different lineages within the earthworm - Eudrilus eugeniae. (Nature and Science. 2007;5(2):16-21).
Egyptian Journal of Medical Human Genetics
Background: The association of obesity with adiponectin gene has been reported in different popul... more Background: The association of obesity with adiponectin gene has been reported in different populations with various inconsistencies. Data from Nigeria is very scanty on the association. Aim: We investigated possible associations of adiponectin gene (ADIPOQ) single nucleotide polymorphisms (SNPs) rs2241766 (+45T>G in exon 2), rs266729 (À11377C>G in promoter) and rs1501299 (+276G>T in intron 2) with body mass index (BMI), waist circumference (WC) and hip circumference (HC), in our cross-sectional study. Subjects and methods: SNPs in ADIPOQ were genotyped in 107 subjects (81 females, 26 males; mean age 22.2 years) by Sequenom MassARRAY. Notably, rs2241766 was removed for not reaching Hardy-Weinberg equilibrium. BMI was calculated (kg/m 2) while WC and HC were measured using standard procedures Results: Linear regression showed that variant rs1501299 was not associated with BMI, WC or HC but rs266729 was associated with increased measures of obesity involving BMI (recessive model; beta coefficient [b], 12.85; 95% confidence interval [
Egyptian Journal of Medical Human Genetics
Background: The association of obesity with adiponectin gene has been reported in different popul... more Background: The association of obesity with adiponectin gene has been reported in different populations with various inconsistencies. Data from Nigeria is very scanty on the association. Aim: We investigated possible associations of adiponectin gene (ADIPOQ) single nucleotide polymorphisms (SNPs) rs2241766 (+45T>G in exon 2), rs266729 (À11377C>G in promoter) and rs1501299 (+276G>T in intron 2) with body mass index (BMI), waist circumference (WC) and hip circumference (HC), in our cross-sectional study. Subjects and methods: SNPs in ADIPOQ were genotyped in 107 subjects (81 females, 26 males; mean age 22.2 years) by Sequenom MassARRAY. Notably, rs2241766 was removed for not reaching Hardy-Weinberg equilibrium. BMI was calculated (kg/m 2) while WC and HC were measured using standard procedures Results: Linear regression showed that variant rs1501299 was not associated with BMI, WC or HC but rs266729 was associated with increased measures of obesity involving BMI (recessive model; beta coefficient [b], 12.85; 95% confidence interval [
Journal of environmental biology / Academy of Environmental Biology, India, 2007
Earthworm, Eudrilus eugeniae, exposed to different concentrations of dump-site soil and petroleum... more Earthworm, Eudrilus eugeniae, exposed to different concentrations of dump-site soil and petroleum effluents exhibited different morbidity and mortality responses. Lake sediments caused varied fluctuations in weight over a 20 day exposure period. Colour changes and mortality up to 15% were observed in earthworms cultured in 100% lake sediment, while weight loss, coiling and sluggish movement were observed in 50% lake water. The effects of 100% dump-site soils were more pronounced as 40% death, swelling, body lesions, stiffening, coiling and low reproduction were recorded. Earthworms were useful as an organism in testing the toxicity of dump-site soils and effluent from a petroleum industry. Dump-site soils and soils polluted with petroleum effluent reduced populations of earthworms and this could subsequently affect other components of the ecosystems associated with earthworm activities.
The relationship between dermatoglyphics and multiple intelligences (MIs) were investigated in th... more The relationship between dermatoglyphics and multiple intelligences (MIs) were investigated in this study. 210 subjects from seven secondary schools in Lagos State, Nigeria were examined on heritable MIs; linguistic, logic/Math, intrapersonal, interpersonal, kinesthetic, musical and natural intelligences. The ten fingerprint patterns were captured with an automated scanner to reveal both fingerprint patterns and ridge count on each finger. Analyses revealed that whorl and ulnar loop were predominant on both right and left fingers. There was a significant correlation between the second fingers of both hands with logic intelligence; ulna loop being the most frequent pattern for those ranked "highly intelligent" in logic (P < 0.05). There was also a significant relationship between mean ridge count of the left fingers and kinesthetic intelligence in male; higher ridge count corresponded with high kinesthetic intelligence. However, there was no significant correlation between fingerprint patterns and students' performance from different tribe (P>0.05). This study has revealed that the mean total ridge count of left fingers can indicate the level of kinesthetic intelligence in male and ulnar loop pattern on the second finger of both hands and consequently implies high heritable logic intelligence. Further studies with other forms of dermatoglyphic indices and larger sample size are recommended to unravel more association between dermatoglyphics and MIs.
Euphytica, 1990
Breeders usually obtain information on a large number of traits in their breeding and selection p... more Breeders usually obtain information on a large number of traits in their breeding and selection programmes. However, since some or many of these traits could be related, it is desirable to reduce the number being handled to the barest minimum without sacrificing efficiency. Breeders often use correlations, stepwise multiple regressions and path coefficient analyses to determine the nature of relationships among such characteristics. The objective of this study was to use these statistical methods to determine traits that could be useful in predicting number of bunches (NB), fresh fruit bunch yield (FFB) and mean bunch weight (MBW) for 13 backcross progenies of oil palm (Elaeis sp .) grown in four replications with 12 palms per replication. Data were collected over a period of 3 or 11 years, depending on the trait. Progeny means and individual palm data, averaged across replications and years, were used for each of these analyses. Results showed that correlations involving individual palm data were similar to the progeny mean correlations. Five to seven traits accounted for about 70-90% of the variations in the dependent variables. Traits that showed the highest correlations with the dependent variables always accounted for the largest proportion of the variation (r 2) in multiple regression models, but did not always have the highest direct effect (i .e. path coefficients) in path analysis of the dependent trait. Number of leaves per palm had the highest correlation (r = 0 .729) with, and accounted for 53 .2% of the variation in NB. Path analysis however showed that percentage fruit per bunch (% F/B) was the most important determinant of NB. It exerted the highest direct effect of 0 .537. The highest correlation with FFB involved number of leaves (r = 0 .660), which, in multiple regression models also accounted for the largest proportion (44 .0%) of the variation in FFB. Path analysis showed that percentage mesocarp per fruit gave the highest direct effect (p =-0 .974) for this trait. It was concluded that various combinations of number of leaves per palm, sex-ratio, percentage fruit per bunch and percentage mesocarp per fruit would be effective as indirect selection criteria for NB, FFB and MBW in this set of material .
Solanum L., is the largest genus of the family Solanaceae with over 2,000 species. Considering th... more Solanum L., is the largest genus of the family Solanaceae with over 2,000 species. Considering their worldwide distribution, a remarkably high level of morphological diversity has manifested at the species, the cultivar and the generic levels. This coupled with the crossability affinities between S. melongena and other distantly related Solanum species producing fertile F1 hybrids makes classification much more complicated. This extreme diversity of the species of Solanum has been attributed to its great antiquity, as well as its extraordinary rate of speciation. This study explored and determined the levels of both inter and intra genetic relationships as well as variability among vegetable Solanum and wild related species collected from Southern Nigeria. Forty nine samples representing 12 different species of vegetable Solanum and related species were randomly collected and studied. Data obtained from measurement of thirty seven quantitative and qualitative phenotypic characters w...
Egyptian Academic Journal of Biological Sciences, B. Zoology, Nov 1, 2019
African Elephants, the largest living terrestrial mammals (Thouless et al., 2016), are keystone s... more African Elephants, the largest living terrestrial mammals (Thouless et al., 2016), are keystone species that play a pivotal role in structuring both plant and animal communities (Stephenson, 2007). They are closely associated with the social and cultural aspects of people; a factor that could be harnessed to promote its conservation (Reddy and Workneh, 2014). Elephant numbers and ranges have declined greatly and most elephant populations in Nigeria are in small, fragmented, relict populations (Obot
Annual Research & Review in Biology
Aim: This study investigated relatedness among three indigenous chicken types using morphological... more Aim: This study investigated relatedness among three indigenous chicken types using morphological features and morphological trait interdependence within three indigenous poultry species in Nigeria. Study Design: A complete Random sample design was employed in this study to investigate morphological relatedness. Place and Duration of the Study: Birds of reproductive age were sampled from 12 states across Nigeria between February 2013 and November 2015. Methodology: Morphological traits were measured according to the FAO description. Nearest neighbor analyses (hierarchical cluster) were done using SPSS 23.0 version. Results: The nearest neighbor analyses showed that higher degree of relatedness exists between the wild type chicken and the frizzle feather indigenous chicken type in Nigeria. Traits interdependence was observed between and among the different morphological traits within the different poultry species. Conclusion: The characters measured could be of useful genetic importa...
... Degrading Potentials of Bacteria Isolated from a Nigerian Bitumen (Tarsand) Deposit Bola O. O... more ... Degrading Potentials of Bacteria Isolated from a Nigerian Bitumen (Tarsand) Deposit Bola O. Oboh 1, Matthew O. Ilori 2 ... in hydrocarbon degradation, particularly Pseudomonas and Alcaligenes by several workers (Amund and Adebiyi, 1991; Atlas, 1992; Nwachukwu and Ugoji ...
In an effort to enhance crop production in crude oil contaminated soils, the effect of the additi... more In an effort to enhance crop production in crude oil contaminated soils, the effect of the addition of cow dung on the growth and performance of Glycine max grown in soil contaminated with various concentrations of crude oil were investigated in this study. There was a general improvement on the growth, dry weight, chlorophyll content, leaf area and pod production of the crop by the addition of cow dung to crude oil polluted soil. The performance of the crop also improved as the period of study increased suggesting that the toxicity of crude oil to the crop reduced as the period of study increased. Statistical differences (P>0.05) were noticed among the days of sampling for some of the growth and performance indices measured suggesting that the period of study affected the performance of such indices. The findings of this study show that addition of cow dung to crude oil contaminated soil makes such contaminated soils useful for agricultural activities. (Nature and Science. 2008;...
Enhanced remediation of crude oil polluted soil by Glycine max through augmentation of such soil ... more Enhanced remediation of crude oil polluted soil by Glycine max through augmentation of such soil with cow dung was evaluated in this study. The soil was contaminated artificially with 25g, 50g and 75g crude oil. The total petroleum hydrocarbon content, the soil pH, moisture and organic matter contents of the soil were determined. More TPH was lost from soils augmented with cow dung than from the non-augmented soil. The pH, moisture content and organic matter content were more in the augmented soils than from the non-augmented soil. Significant differences were noticed between the augmented soils and the non-augmented soil (p<0.05, p<0.01, p<0.001). The results obtained in this study show that augmenting crude oil polluted soils with cow dung will enhance remediation and restoration of crude oil polluted soil.
Research Journal of Environmental Toxicology
International Journal of Plant Breeding and Genetics, 2007
Research Journal of …, 2012
Research Journal of Environmental and Earth Sciences 4(4): 413-418, 2012 ISSN: 2041-0492 ©Maxwell... more Research Journal of Environmental and Earth Sciences 4(4): 413-418, 2012 ISSN: 2041-0492 ©Maxwell Scientific Organization, 2012 Submitted: December 10, 2011 Accepted: January 31, 2012 Published: April 15, 2012 Corresponding Author: Kelechi L. Njoku, Department of ...
Morphological variation was studied within earthworm species - Eudrilus eugeniae populations coll... more Morphological variation was studied within earthworm species - Eudrilus eugeniae populations collected from 14 different locations within Lagos State in Nigeria. Mature earthworms were identified by the presence of the clitellum and position of clitellum assisted in specie identification. Morphometric data collected on the earthworms include body weight, length of clitellum, body size diameter, total number of segments and body volume. Results from the statistical analysis showed that the earthworms though of same species were separated into 3 distinct groups based on the morphometirc parameters and not soil type. These 3 distinct groups may represent different lineages within the earthworm - Eudrilus eugeniae. (Nature and Science. 2007;5(2):16-21).