Manee Archawaranon
Department of Biology, Faculty of Science, Ramkhamhaeng University,
Bangkok, Thailand,
Umnat Mevatee
Department of Anatomy, Faculty of Medicine, Chiangmai University, Chiangmai, Thailand
ABSTRACT
The study on eleven characteristics including head, bill, body, wattle, wing, tail and tarsus of hill Mynahs from different populations inhabited throughout Thailand discriminated birds into five groups: Northern, Modified Northern, Intermediate, Modified Southern and Southern. Specifically, there were five characters of the yellow connection between the anterior and posterior wattles. The differences among the averages of these characteristics of five different groups were statistically significant. On the other hand the karyological study did not show any correlation between phenotypic variation and genetic divergence in chromosomal aspect. There was no geographical difference in karyotypes. The sizes and shapes of five different hill Mynah group chromosomes were similar. The diploid chromosome number (2n) was 80: ten pairs of macrochromosomes and thirty pairs of microchromosomes. There was a karyotypical invariance among various morphological populations of hill Mynahs from different areas in this study. Eventually, the role of microchromosomes or further study of DNA level is implicated.
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How to cite this article
Manee Archawaranon and Umnat Mevatee, 2002. Karyotypes Among Various Morphological Populations of Hill Mynah, Gracula
religiosa, from Different Areas in Thailand. Journal of Biological Sciences, 2: 386-389.
DOI: 10.3923/jbs.2002.386.389
URL: https://scialert.net/abstract/?doi=jbs.2002.386.389
DOI: 10.3923/jbs.2002.386.389
URL: https://scialert.net/abstract/?doi=jbs.2002.386.389
REFERENCES
- Baker, A.J., M.K. Peck and M.A. Goldsmith, 1990. Genetic and morphometric differentiation in introduced populations of common chaffinches (Fringilla coelebs) in New Zealand. Condor, 92: 76-88.
Direct Link - Baker, M.C. and M.S. Johnson, 1998. Allozymic and morphometric comparisons among indigo and lazuli buntings and their hybrids. Auk, 115: 537-542.
Direct Link - Levan, A., K. Fredga and A.A. Sandberg, 1964. Nomenclature for centromeric position on chromosomes. Hereditas, 52: 201-220.
CrossRefDirect Link - De Boer, L.E.M. and R. van Bocxstaele, 1981. Somatic chromosomes of the congo peafowl (Afropavo congensis) and their bearing on the species affinities. Condor, 83: 204-208.
Direct Link - Foggo, M.N., R.A. Hitchmough and C.H. Daugherty, 1996. Systematic and conservation implications of geographic variation in pipits (Anthus: Motacillidae) in New Zealand and some offshore islands. Ibis, 139: 366-373.
Direct Link - Johnson, N.K. and J.A. Marten, 1992. Macrogeographic patterns of morphometric and genetic variation in the sage sparrow complex. Condor, 94: 1-19.
Direct Link - Rasmussen, P.C., 1994. Geographic variation in morphology and allozymes of South American imperial shags. Auk, 111: 143-161.
Direct Link - Rising, J.D. and G.F. Shields, 1980. Chromosomal and morphological correlates in two world sparrows (Emberizidae). Evolution, 34: 654-662.
Direct Link - Rodionov, A.V., 1996. Micro vs. macro: Structural-functional organization of avian micro-and macrochromosomes. Genetika, 32: 597-608.
Direct Link - Triggs, S.J., M.J. Williams, S.J. Marshall and G.K. Chambers, 1992. Genetic structure of blue ducks (Hymenolaimus malacorhynchos) populations revealed by DNA fingerprinting. Auk, 109: 80-89.
Direct Link - Zink, R.M., 1982. Patterns of genic and morphologic variation among Sparrows in the genera Zonotrichia, Melospiza, Junco and Passerella. Auk, 99: 632-649.
Direct Link