Ali Asghar Maassoumi - Academia.edu (original) (raw)

Papers by Ali Asghar Maassoumi

Rostaniha, Feb 19, 2013

A phylogenetic analysis of Astragalus sect. Alopecuroidei based on nrDNA ITS as well as morpholog... more A phylogenetic analysis of Astragalus sect. Alopecuroidei based on nrDNA ITS as well as morphological character data is presented. A total of fifty informative morphological characters were analyzed to reconstruct phylogenetic relationships for 23 taxa of the sect. Alopecuroidei and two species of sect. Laxiflori plus A. sieversianus and A. caryolobus as outgroups. The present analysis revealed that the Alopecuroidei with the inclusion of sect. Laxiflori is monophyletic. This is well consistent with the previous works even with the small taxon sampling. Astragalus alopecias was positioned at the base of the resulting trees. The present study indicates that all six/four informal species groups, except the Kirrindicus (=Obtusifolius) group and Turbinatus group, recognized within the Alopecuroidei were not monophyletic. nrDNA and morphology-based phylogenies were conflicting regarding the position of A. saetiger, A. turbinatus and A. neoassadianus.

Willdenowia, 2005

BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access t... more BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Molecular Phylogenetics and Evolution, 2008

The avian genus Saxicola is distributed throughout Africa, Asia, Europe and various islands acros... more The avian genus Saxicola is distributed throughout Africa, Asia, Europe and various islands across Oceania. Despite the fact that the group has great potential as a model to test evolutionary hypotheses due to the extensive variability in life history patterns recorded between and within species, the phylogenetic relationships among species and subspecies of this genus are poorly understood. We undertook a systematic investigation of the relationships within this genus with three main objectives in mind, (1) to test the monophyly of the genus; (2) to ascertain geographical origin and dispersal sequence; and (3) to test for monophyly within the most morphologically diverse species, S. torquata and S. caprata. We studied sequence data from the mitochondrial cytochrome b gene from 11 of the 12 recognized species and 15 of the 45 described subspecies. Four clades, two exclusively Asian, one Eurasian, and the fourth encompassing Eurasia and Africa, were identified. Based on our analyses, monophyly of the genus Saxicola is not supported and an Asian origin for the genus can be inferred. Results from DIVA analyses, tree topology and nodal age estimates suggest independent colonisation events from Asia to Africa and from Asia to the Western Palearctic, with the Sahara desert acting as a natural barrier for S. torquata. Subspecies and populations of S. torquata are not monophyletic due to S. tectes, S. dacotiae and S. leucura grouping within this complex. Subspecies and populations of S. caprata are monophyletic. Importantly, within S. torquata and S. caprata, slight morphological traits and plumage colour pattern differences used to recognize subspecies are indicative of the greater cryptic diversification that has occurred within this genus.

Research Journal of …, 2008

Lichens with cyanobacterial photobionts are called cyanolichens. The main purpose of this researc... more Lichens with cyanobacterial photobionts are called cyanolichens. The main purpose of this research is to study the cyanolichens of the southern part of Central Alborz protected region. This region is located in the north of Tehran between Tehran and ...

Research Journal of …, 2008

This study summarizes cyanolichen species known to occur in Iran. Their distribution in the count... more This study summarizes cyanolichen species known to occur in Iran. Their distribution in the country is mentioned and a key is given for the identification of cyanolichen genera known from Iran. As this group of lichens is very inconspicuous, their ...

IRANIAN JOURNAL OF BOTANY, 2011

Based on the herbarium studies and field observations, the genus Calligonum L. in Iran has been r... more Based on the herbarium studies and field observations, the genus Calligonum L. in Iran has been revised. In this paper, a brief revision of the genus in Iran is presented. Altogether, 23 species are known from Iran. A key to the species, a new species namely C. alatosetosum Maassoumi & Kazempour, short diagnose and or taxonomic discussions have been prepared. Among the cited species C. molle Litw. is a doubtful record to Iran. Former record of C. tetrapterum Jaub. & Spach from Iran is not improved.

Iran. J. Bot, 2007

Astragalus borujenensis Ranjbar & Maassoumi (Fabaceae) is described from Iran and illustrated in ... more Astragalus borujenensis Ranjbar & Maassoumi (Fabaceae) is described from Iran and illustrated in line drawings. It belongs in Astragalus sect. Ammodendron and resembles A. podolobus, from which it differs mainly in its stipe, color and type of pod indumentum and pod arrangement. Seed coat surfaces of A. borujenensis and A. podolobus are displayed in SEM photographs. Also A. filifoliolatus is transferred from A. sect. Onobrychoidei to A. sect. Ammodendron.

sid.ir

Among the rich materials of the genus Salix collected from different localities of Iran and also ... more Among the rich materials of the genus Salix collected from different localities of Iran and also based on the identification of unknown herbarium specimens in TARI, two new species namely Salix baladehensis and S. issatissensis are described. S. baladehensis is close to S. aegyptiaca but with shorter male catkin up to 2 cm and sparsely hairy bracts. S. issatissensis is an affinity of S. excelsa formerly described as S. excelsa var, rodonii. S. denticulata and S. fedtschenkoi are respectively recorded from Khorassan and Semnan provinces as new to Iran.

Asian Journal of Plant Sciences, 2008

Asian Journal of Plant Sciences, 2008

Annales Botanici Fennici, 2011

Leopoldia ghoschtchiensis Jafari & Maassoumi sp. nova (Hyacinthaceae) is described from Iran. Key... more Leopoldia ghoschtchiensis Jafari & Maassoumi sp. nova (Hyacinthaceae) is described from Iran. Keys to and a brief synopsis of the eleven species here recognized in Leopoldia, Muscari and Pseudomuscari (or Muscari s. lato) in Iran is provided.

Iranian Journal of …, 2010

This study represents phylogenetic analyses of two woody polygonaceous genera Calligonum and Pter... more This study represents phylogenetic analyses of two woody polygonaceous genera Calligonum and Pteropyrum using both chloroplast fragment (trnL-F) and the nuclear ribosomal internal transcribed spacer (nrDNA ITS) sequence data. All inferred phylogenies using parsimony and ...

Zanjan province in NW Iran, with diverse climatic and topographic conditions includes a considera... more Zanjan province in NW Iran, with diverse climatic and topographic conditions includes a considerable part of Astragalus gene pool. From 2007 through 2009, a collection as complete as possible was made in this area by the authors. As a results of this study, we added 41 species to the already 75 known species for this province. Furthermore, 9 new species were described for the area from which one new species (Astragalus fausicola Podlech ex Bagheri, Maassoumi & F. Ghahrem. from sect. Incani DC.) is introduced.

Four new species of the genus Astragalus L. sect. Hymenostegis Bunge are described from NW Iran, ... more Four new species of the genus Astragalus L. sect. Hymenostegis Bunge are described from NW Iran, prov. Zanjan: A. austromahneshanensis, A. qeydarnabiensis, A. subkohrudicus, and A. subrecognitus. They are compared with their closest relatives. Furthermore, A. sosnowskyi Grossh. is recorded for the first time from Iran and A. velenovskyi Náb0lek is excluded from the list of Iranian species of Astragalus. Based on these new findings, the number of species attributed to sect. Hymenostegis reaches to 57, with an endemism rate of about 75% in Iran. So, Iran, especially the NW of the country, is the main diversity center of this section.

Nova Biologica Reperta, 2020

In this study, phylogenetic relationships and evolutionary trends of morphological characters of ... more In this study, phylogenetic relationships and evolutionary trends of morphological characters of Astragalus sects. Acanthophace and Aegacantha were studied using nrDNA ITS and rpl32-trnLUAG datasets while Astragalus stocksii was selected as the outgroup. The phylogenetic results indicated the non-monophyly of A. sect. Acanthophace in its current circumscription due to the distant exclusion of A. ovigerus from the core group, and incongruence between nuclear and plastid datasets on the basis of different position of latter species in the resulted phylogenetic trees. Astragalus sect. Aegacantha was also found to not being monophyletic due to the distant position of A. montis-parrowii from the other representatives of the section while accompanying with other spiny Astragalus species. The Optimization of 32 morphological characters on the Bayesian combined tree indicated that some characters were most useful for delimitation of taxa in sections Acanthophace and Aegacantha. The results ...

3!..Some new species and a new section from the genusAstragalus (Leguminosae) in Iran.-Iran. Jour... more 3!..Some new species and a new section from the genusAstragalus (Leguminosae) in Iran.-Iran. Journ. Bot. 4(1):71-90.Tehtan. Eleven new species including Astragalus babakhanloui, A. doshrnanziariensis, A. facetus, A. ghahremmtii, A. inexpectatus, A, iranshahrii, A. memnonius, A. plagiophacos, A. rubrocalycinus, A. termeanus, A. uessalae are described from Iran. They are compared with their close affinities. The section plagiophaca is described ari a new, the type of this monotypic section is desigr:ated as As t r ag alu s plagio ph ac o s.

Bangladesh Journal of Plant Taxonomy, 2016

In this study, 38 species belonging to some bifurcate hairy sections of Astragalus L. were analyz... more In this study, 38 species belonging to some bifurcate hairy sections of Astragalus L. were analyzed phylogenetically, using nuclear and plastid DNA sequences. Based on our results, Astragalus sect. Dissitiflori DC. with the inclusion of the members of section Erioceras Bunge, formed a monophyletic group. The members of sect. Ornithopodium Bunge and Onobrychoidei DC. were located together within a highly supported monophyletic clade, apart from other sections studied, on the basis of the present molecular data.The positioning of the enigmatic, recently established species, A. juladakensis Maassoumi, within the sect. Dissitiflori was verified. In addition, our results showed that A. pravitzii Podl., which had been already transferred to sect. Ornithopodium, belongs to the section Dissitiflori.

Astragalus hotkanensis is described as a new species from south east Iran. This species belongs t... more Astragalus hotkanensis is described as a new species from south east Iran. This species belongs to the sect. Microphysa Bunge. The related species are A. meimandicus, and A. reuterianus.

Rostaniha, Feb 19, 2013

A phylogenetic analysis of Astragalus sect. Alopecuroidei based on nrDNA ITS as well as morpholog... more A phylogenetic analysis of Astragalus sect. Alopecuroidei based on nrDNA ITS as well as morphological character data is presented. A total of fifty informative morphological characters were analyzed to reconstruct phylogenetic relationships for 23 taxa of the sect. Alopecuroidei and two species of sect. Laxiflori plus A. sieversianus and A. caryolobus as outgroups. The present analysis revealed that the Alopecuroidei with the inclusion of sect. Laxiflori is monophyletic. This is well consistent with the previous works even with the small taxon sampling. Astragalus alopecias was positioned at the base of the resulting trees. The present study indicates that all six/four informal species groups, except the Kirrindicus (=Obtusifolius) group and Turbinatus group, recognized within the Alopecuroidei were not monophyletic. nrDNA and morphology-based phylogenies were conflicting regarding the position of A. saetiger, A. turbinatus and A. neoassadianus.

Willdenowia, 2005

BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access t... more BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Molecular Phylogenetics and Evolution, 2008

The avian genus Saxicola is distributed throughout Africa, Asia, Europe and various islands acros... more The avian genus Saxicola is distributed throughout Africa, Asia, Europe and various islands across Oceania. Despite the fact that the group has great potential as a model to test evolutionary hypotheses due to the extensive variability in life history patterns recorded between and within species, the phylogenetic relationships among species and subspecies of this genus are poorly understood. We undertook a systematic investigation of the relationships within this genus with three main objectives in mind, (1) to test the monophyly of the genus; (2) to ascertain geographical origin and dispersal sequence; and (3) to test for monophyly within the most morphologically diverse species, S. torquata and S. caprata. We studied sequence data from the mitochondrial cytochrome b gene from 11 of the 12 recognized species and 15 of the 45 described subspecies. Four clades, two exclusively Asian, one Eurasian, and the fourth encompassing Eurasia and Africa, were identified. Based on our analyses, monophyly of the genus Saxicola is not supported and an Asian origin for the genus can be inferred. Results from DIVA analyses, tree topology and nodal age estimates suggest independent colonisation events from Asia to Africa and from Asia to the Western Palearctic, with the Sahara desert acting as a natural barrier for S. torquata. Subspecies and populations of S. torquata are not monophyletic due to S. tectes, S. dacotiae and S. leucura grouping within this complex. Subspecies and populations of S. caprata are monophyletic. Importantly, within S. torquata and S. caprata, slight morphological traits and plumage colour pattern differences used to recognize subspecies are indicative of the greater cryptic diversification that has occurred within this genus.

Research Journal of …, 2008

Lichens with cyanobacterial photobionts are called cyanolichens. The main purpose of this researc... more Lichens with cyanobacterial photobionts are called cyanolichens. The main purpose of this research is to study the cyanolichens of the southern part of Central Alborz protected region. This region is located in the north of Tehran between Tehran and ...

Research Journal of …, 2008

This study summarizes cyanolichen species known to occur in Iran. Their distribution in the count... more This study summarizes cyanolichen species known to occur in Iran. Their distribution in the country is mentioned and a key is given for the identification of cyanolichen genera known from Iran. As this group of lichens is very inconspicuous, their ...

IRANIAN JOURNAL OF BOTANY, 2011

Based on the herbarium studies and field observations, the genus Calligonum L. in Iran has been r... more Based on the herbarium studies and field observations, the genus Calligonum L. in Iran has been revised. In this paper, a brief revision of the genus in Iran is presented. Altogether, 23 species are known from Iran. A key to the species, a new species namely C. alatosetosum Maassoumi & Kazempour, short diagnose and or taxonomic discussions have been prepared. Among the cited species C. molle Litw. is a doubtful record to Iran. Former record of C. tetrapterum Jaub. & Spach from Iran is not improved.

Iran. J. Bot, 2007

Astragalus borujenensis Ranjbar & Maassoumi (Fabaceae) is described from Iran and illustrated in ... more Astragalus borujenensis Ranjbar & Maassoumi (Fabaceae) is described from Iran and illustrated in line drawings. It belongs in Astragalus sect. Ammodendron and resembles A. podolobus, from which it differs mainly in its stipe, color and type of pod indumentum and pod arrangement. Seed coat surfaces of A. borujenensis and A. podolobus are displayed in SEM photographs. Also A. filifoliolatus is transferred from A. sect. Onobrychoidei to A. sect. Ammodendron.

sid.ir

Among the rich materials of the genus Salix collected from different localities of Iran and also ... more Among the rich materials of the genus Salix collected from different localities of Iran and also based on the identification of unknown herbarium specimens in TARI, two new species namely Salix baladehensis and S. issatissensis are described. S. baladehensis is close to S. aegyptiaca but with shorter male catkin up to 2 cm and sparsely hairy bracts. S. issatissensis is an affinity of S. excelsa formerly described as S. excelsa var, rodonii. S. denticulata and S. fedtschenkoi are respectively recorded from Khorassan and Semnan provinces as new to Iran.

Asian Journal of Plant Sciences, 2008

Asian Journal of Plant Sciences, 2008

Annales Botanici Fennici, 2011

Leopoldia ghoschtchiensis Jafari & Maassoumi sp. nova (Hyacinthaceae) is described from Iran. Key... more Leopoldia ghoschtchiensis Jafari & Maassoumi sp. nova (Hyacinthaceae) is described from Iran. Keys to and a brief synopsis of the eleven species here recognized in Leopoldia, Muscari and Pseudomuscari (or Muscari s. lato) in Iran is provided.

Iranian Journal of …, 2010

This study represents phylogenetic analyses of two woody polygonaceous genera Calligonum and Pter... more This study represents phylogenetic analyses of two woody polygonaceous genera Calligonum and Pteropyrum using both chloroplast fragment (trnL-F) and the nuclear ribosomal internal transcribed spacer (nrDNA ITS) sequence data. All inferred phylogenies using parsimony and ...

Zanjan province in NW Iran, with diverse climatic and topographic conditions includes a considera... more Zanjan province in NW Iran, with diverse climatic and topographic conditions includes a considerable part of Astragalus gene pool. From 2007 through 2009, a collection as complete as possible was made in this area by the authors. As a results of this study, we added 41 species to the already 75 known species for this province. Furthermore, 9 new species were described for the area from which one new species (Astragalus fausicola Podlech ex Bagheri, Maassoumi & F. Ghahrem. from sect. Incani DC.) is introduced.

Four new species of the genus Astragalus L. sect. Hymenostegis Bunge are described from NW Iran, ... more Four new species of the genus Astragalus L. sect. Hymenostegis Bunge are described from NW Iran, prov. Zanjan: A. austromahneshanensis, A. qeydarnabiensis, A. subkohrudicus, and A. subrecognitus. They are compared with their closest relatives. Furthermore, A. sosnowskyi Grossh. is recorded for the first time from Iran and A. velenovskyi Náb0lek is excluded from the list of Iranian species of Astragalus. Based on these new findings, the number of species attributed to sect. Hymenostegis reaches to 57, with an endemism rate of about 75% in Iran. So, Iran, especially the NW of the country, is the main diversity center of this section.

Nova Biologica Reperta, 2020

In this study, phylogenetic relationships and evolutionary trends of morphological characters of ... more In this study, phylogenetic relationships and evolutionary trends of morphological characters of Astragalus sects. Acanthophace and Aegacantha were studied using nrDNA ITS and rpl32-trnLUAG datasets while Astragalus stocksii was selected as the outgroup. The phylogenetic results indicated the non-monophyly of A. sect. Acanthophace in its current circumscription due to the distant exclusion of A. ovigerus from the core group, and incongruence between nuclear and plastid datasets on the basis of different position of latter species in the resulted phylogenetic trees. Astragalus sect. Aegacantha was also found to not being monophyletic due to the distant position of A. montis-parrowii from the other representatives of the section while accompanying with other spiny Astragalus species. The Optimization of 32 morphological characters on the Bayesian combined tree indicated that some characters were most useful for delimitation of taxa in sections Acanthophace and Aegacantha. The results ...

3!..Some new species and a new section from the genusAstragalus (Leguminosae) in Iran.-Iran. Jour... more 3!..Some new species and a new section from the genusAstragalus (Leguminosae) in Iran.-Iran. Journ. Bot. 4(1):71-90.Tehtan. Eleven new species including Astragalus babakhanloui, A. doshrnanziariensis, A. facetus, A. ghahremmtii, A. inexpectatus, A, iranshahrii, A. memnonius, A. plagiophacos, A. rubrocalycinus, A. termeanus, A. uessalae are described from Iran. They are compared with their close affinities. The section plagiophaca is described ari a new, the type of this monotypic section is desigr:ated as As t r ag alu s plagio ph ac o s.

Bangladesh Journal of Plant Taxonomy, 2016

In this study, 38 species belonging to some bifurcate hairy sections of Astragalus L. were analyz... more In this study, 38 species belonging to some bifurcate hairy sections of Astragalus L. were analyzed phylogenetically, using nuclear and plastid DNA sequences. Based on our results, Astragalus sect. Dissitiflori DC. with the inclusion of the members of section Erioceras Bunge, formed a monophyletic group. The members of sect. Ornithopodium Bunge and Onobrychoidei DC. were located together within a highly supported monophyletic clade, apart from other sections studied, on the basis of the present molecular data.The positioning of the enigmatic, recently established species, A. juladakensis Maassoumi, within the sect. Dissitiflori was verified. In addition, our results showed that A. pravitzii Podl., which had been already transferred to sect. Ornithopodium, belongs to the section Dissitiflori.

Astragalus hotkanensis is described as a new species from south east Iran. This species belongs t... more Astragalus hotkanensis is described as a new species from south east Iran. This species belongs to the sect. Microphysa Bunge. The related species are A. meimandicus, and A. reuterianus.