Publication: Additional data on metaphase karyotype variation and geographic distribution of the Drosophila kikkawai complex
Issued Date
1986-01-01
Resource Type
ISSN
0021504X
Other identifier(s)
2-s2.0-84996050033
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Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
The Japanese Journal of Genetics. Vol.61, No.3 (1986), 207-216
Suggested Citation
V. Baimai, A. Traipakvasin, Osamu Kitagawa Additional data on metaphase karyotype variation and geographic distribution of the Drosophila kikkawai complex. The Japanese Journal of Genetics. Vol.61, No.3 (1986), 207-216. doi:10.1266/jjg.61.207 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/9675
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Title
Additional data on metaphase karyotype variation and geographic distribution of the Drosophila kikkawai complex
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Abstract
Cytological examination of D. kikkawai and D. leontia from different geographic origins shows quantitative variation of constitutive heterochro-matin in the 4th (microchromosome) and Y chromosomes. Four new types of the 4th chromosome and two of the Y chromosome have been discovered in D. kikkawai. When combined with the previous records, a total of 9 types of 4th chromosome and 4 types of Y chromosome have been encountered in natural populations of D. kikkawai. This makes it the most variable in metaphase karyotype in the genus Drosophila. In contrcst, its sibling species, D. leontia, exhibits a uniform mitotic karyotype similar to D. bocki. Furthermore, D. kikkawai is highly variable in metaphase heterochromatin in the oriental region, especially in Southeast Asia, which probably represents the center of its distribution, while populations toward the eastern and western bounds tend to be monomorphic which reflect the periphery of the species range. © 1986, The Genetics Society of Japan. All rights reserved.