Karyotypes of six species of bats (Chiroptera) from the Dominican Republic / (original) (raw)
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Karyotypic analysis of twenty-one species of molossid bats (Molossidae: Chiroptera)
Genome
Examination of 135 specimens representing 21 species from seven genera of the family Molossidae revealed diploid numbers ranging from 34 to 48. Seventeen species from six genera have diploid numbers of 48. ,Geographic variation and polymorphism were found only in Eumops glaucinus. Chromosomal variation within the family is presumed to be primarily due to changes in diploid number resulting from Robertsonian translocations. Manuscript received June 29, 1973. Can. J. Genet. Cytol. 16: 165-176. 1974. Can. J. Genet. Cytol. Downloaded from www.nrcresearchpress.com by 199.201.121.12 on 06/03/13
Karyotypic Studies of the Insular Populations of Bats on Puerto Rico
Caryologia, 1970
Karyotypic studies of bats are of interest for several reasons. In the total number of living species of mammals, bats rank second only to rodents. Yet, of the more than 800 living species, less than 140 have been karyotypically studied (see YoNENAGA et al. 1969; BAKER, in press). Also there are indications that karyotypes may be good phylogenetic indicators in bats (BAKER and PATTON 1967; BAKER 1967 and in press). This is of particular interest because of the potential for convergent evolution in such families as the Phyllostomatidae (BAKER 196 7 and in press) and since there are many places where bat phylogeny is unclear. At least three chromosomal sex determining systems exist within the family Phyllostomatidae (Hsu et al. 1968; BECAK et al. 1969; BAKER and Hsu, in press; and BAKER, in press). The scope of this report is to describe the karyotypes of nine species of bats studied from the island of Puerto Rico. Six of these species and none of the subspecies have been previously studied. Puerto Rico is the eastern limit of the Greater Antilles. From a zoogeographic standpoint, it has a reduced bat fauna and contains several of the endemic genera known only from the Antillian chain of islands. From a standpoint of factors affecting the establishment of karyotypic changes, the populations of these islands are isolated by the position of the island and limited in size by the land mass of the island. Puerto Rico has an area of 3,423 square miles. The island is ecologically diverse and our collecting suggested that most species did not occupy the entire island. Therefore, actual population size would be less than suggested by the total square miles of the island. The following results are of interest because the populations studied * Supported by National Science Foundation Grant No. GB-8120.
Karyotypes of three species of molossid bats (Molossidae, Chiroptera) from India and western Africa
Folia Zool, 2008
Conventional and G- banded karyotypes are reported for three species of molossid bats from india (Chaerephon plicatus) and Senegal (Ch. pumilus, Mops condylurus). The chromosome diploid number 2n = 48 and the number of chromosomal arms FN= 54 were recorded, similarly as in the previous published reports on karyology of molossid bats from Thailand, East Malaysia, and Africa. A synopsis of karyotypes of bats of the family Molossidae is presented with comments on their chromosomal evolution.
Chromosome Research, 2005
The Neotropical Phyllostomidae family is the third largest in the order Chiroptera, with 56 genera and 140 species. Most researchers accept this family as monophyletic but its species are anatomically diverse and complex, leading to disagreement on its systematics and evolutionary relationships. Most of the genera of Phyllostomidae have highly conserved karyotypes but with intense intergeneric variability, which makes any comparative analysis using classical banding difficult. The use of chromosome painting is a modern way of genomic comparison on the cytological level, and will clarify the intense intergenus chromosomal variability in Phyllostomidae. Whole chromosome probes of species were produced as a tool for evolutionary studies in this family from two species from different subfamilies, Phyllostomus hastatus and Carollia brevicauda, which have large morphological and chromosomal differences, and these probes were used in reciprocal chromosome painting. The hybridization of the Phyllostomus probes on the Carollia genome revealed 24 conserved segments, while the Carollia probes on the Phyllostomus genome detected 26 segments. Many chromosome rearrangements have occurred during the divergence of these two genera. The sequence of events suggested a large number of rearrangements during the differentiation of the genera followed by high chromosomal stability within each genus.
The Neotropical bat genus Vampyrodes (Chiroptera: Phyllostomidae: Stenodermatinae) is widely distributed from southern Mexico to southeastern Brazil. Long thought to be monotypic, V. caraccioli Thomas, 1889, was recognized by previous authors as including two subspecies with the nominate form inhabiting South America south and east of the Andes, and another subspecies, V. c. major Allen, 1908, occurring west and north of the Andes. Reexamination of these forms using molecular and morphological methods supports recognition of these lineages as distinct at the species level. We here provide amended descriptions and diagnoses for these taxa. We also report for the first time an example of perikymata (incremental growth lines that appear on the surface of dental enamel as a series of grooves) in Chiroptera. Presence of distinct perikymata is a synapomorphy of the genus Vampyrodes.
Systematic Review of the Antillean Bats of the Natalus micropus -Complex (Chiroptera: Natalidae)
1982
Nongeographic and geographic morphometric variation in Antillean populations of bats of the Nata/us micropus-complex were analyzed using univariate and multivariate statistical techniques. Samples of males and females from Jamaica and the Dominican Republic revealed females to be significantly larger than males in three measurements and males were significantly larger than females in two measurements. Generally, low coefficients of variation were found in samples of both sexes. The highest value obtained was 5.7 for length of phalanx 1 (digit III) in the sample from Old Providence Island. Two species-Nata/us micropus and N. tumidifrons-were recognized within this complex. The chief difference between the species was the larger overall size of N. tumidifrons. N. tumidifrons is confined to the Bahamas and is considered to be rnonotypic. Two subspecies are recognized in N. micropus with the nominate subspecies occurring on Old Providence Island, Jamaica, and Hispaniola, and N. m. macer...
Quaternary Bat Diversity in the Dominican Republic
American Museum Novitates, 2013
The fossil record of bats is extensive in the Caribbean, but few fossils have previously been reported from the Dominican Republic. In this paper, we describe new collections of fossil bats from two flooded caves in the Dominican Republic, and summarize previous finds from the Island of Hispaniola. The new collections were evaluated in the context of extant and fossil faunas of the Greater Antilles to provide information on the evolution of the bat community of Hispaniola. Eleven species were identified within the new collections, including five mormoopids (Mormoops blainvillei, †Mormoops magna, Pteronotus macleayii, P. parnellii, and P. quadridens), five phyllostomids (Brachyphylla nana, Monophyllus redmani, Phyllonycteris poeyi, Erophylla bombifrons, and Phyllops falcatus), and one natalid (Chilonatalus micropus). All of these species today inhabitant Hispaniola with the exception of †Mormoops magna, an extinct species previously known only from the Quaternary of Cuba, and Pteronotus macleayii, which is currently known only from extant populations in Cuba and Jamaica, although Quaternary fossils have also been recovered in the Bahamas. Differences between the fossil faunas and those known from the island today suggest that dispersal and extirpation events, perhaps linked to climate change or stochastic events such as hurricanes, may have played roles in structuring the modern fauna of Hispaniola.
A M E RI C A N M USE U M N OV ITATE S Quaternary Bat Diversity in the Dominican Republic
2020
The fossil record of bats is extensive in the Caribbean, but few fossils have previously been reported from the Dominican Republic. In this paper, we describe new collections of fossil bats from two flooded caves in the Dominican Republic, and summarize previous finds from the Island of Hispaniola. The new collections were evaluated in the context of extant and fossil faunas of the Greater Antilles to provide information on the evolution of the bat community of Hispaniola. Eleven species were identified within the new collections, including five mormoopids (Mormoops blainvillei, †Mormoops magna, Pteronotus macleayii, P. parnellii, and P. quadridens), five phyllostomids (Brachyphylla nana, Monophyllus redmani, Phyllonycteris poeyi, Erophylla bombifrons, and Phyllops falcatus), and one natalid (Chilonatalus micropus). All of these species today inhabitant Hispaniola with the exception of †Mormoops magna, an extinct species previously known only from the Quaternary of Cuba, and Pterono...
Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology, 2001
Detailed karyotype descriptions of 20 Pipistrellus-like bat species belonging to the family Vespertilionidae are presented. For the first time, chromosomal complements of four species, i.e. Pipistrellus stenopterus (2n = 32), P. javanicus (2n = 34), Hypsugo eisentrauti (2n = 42) and H. crassulus (2n = 30) are reported. A Pipistrellus kuhlii-like species from Madagascar represents a separate species distinguished from the European Pipistrellus kuhlii (2n = 44) by a diploid chromosome number of 42. Banded karyotypes are presented for the first time for Scotozous dormeri, Hypsugo capensis, Hesperoptenus blanfordi, Tylonycteris pachypus and robustula. Chromosomal evolution in the family Vespertilionidae is characterized by the conservation of entire chromosomal arms and reductions in diploid chromosome number via Robertsonian fusions. Less frequently, centric fissions, para- and pericentric inversions and centromere shifts were found to have occurred. In several cases a certain type of ...