Chromosome study of bats from different localities in Ethiopia
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Date
1997
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Addis Ababa University
Abstract
Bats were captured by using nets and hand picking and then
chromosome preparations were made from bone marrow cells according to
Lee and Elder’s (1980) method cited in Hillis et al. (1996) with some
modifications. Somatic metaphase chromosomes of bat specimens collected
from Arbaminch, Koka, Merehabete and Ziway regions in Ethiopia were
studied. The specimens were identified belong to the following families and
species. Pipistrellus pipistrellus and Scotophilus dinganii or S. viridis
(family Vespertilionidae), Micropteropus pusillus (family Pteropidae),
Chaerephone pumila (family Molossidae) and a taxonomically yet
unidentified specimen collected from Merehabete region. Five karyotypes,
differing in chromosome number, fundamental number and chromosome
morphology were identified. Accordingly, the karyotype of Micropteropus
pusillus consists of 2n=35, FN=70 and in rare cases 2n=36, FN =72 with all
the chromosomes being biarmed; Pipistrellus pipistrellus 2n=36, FN=52
with metacentric and acrocentric chromosomes; Scotophilus
dinganii(S.viridis) 2n=36, FN=54 with metacentric/ acrocentric
chromosomes; Chaerephon pumila 2n=48, FN=60 with metacentric,
acrocentric and telocentric chromosomes;Merehabete specimen
2n=42,FN=82 with 40 biarmed and two telocentric chromosomes. The
present karyotypes differed from previous reports either in 2n number, or
fundamental numbers or chromosome morphology.
Key words or phrases: Bat, 2n number, Fundamental number, Karyotype,
Ethiopia, Chromosome.
Description
Keywords
Bat, 2n number, Fundamental number, Ethiopia, Chromosome