GENETIC-DIVERGENCE AMONG INDIAN AND OTHER CONTINENTAL POPULATIONS OF DROSOPHILA-MELANOGASTER

被引：0

作者：

PARKASH, R ^{[1
]}

SHAMINA ^{[1
]}

机构：

[1] MAHARSHI DAYANAND UNIV, DEPT BIOSCI, ROHTAK 124001, HARYANA, INDIA

来源：

BIOLOGISCHES ZENTRALBLATT | 1994年 / 113卷 / 04期

关键词：

GEL ELECTROPHORESIS; ALLOZYMIC POLYMORPHISM; LATITUDINAL VARIATION; GENETIC STRUCTURE; INDIAN POPULATIONS; DROSOPHILA MELANOGASTER; CONTINENTAL DATA;

D O I：

暂无

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Fourteen Indian natural populations of D. melanogaster collected along 22 degrees latitudinal range were analysed electrophoretically so as to compare the geographical patterns of allozymic variation at thirteen loci. Acph, Mdh-2 and five esterase loci (Est-1 to Est-5) revealed monomorphisrn while the other loci were found to be highly polymorphic. The genetic structure of Indian D. melanogaster populations were characterised by significantly higher values of genetic indices as compared with other continental populations. Indian geographical populations of D. melanogaster revealed higher genic differentiation on the basis of moderate to higher F-ST values. Significant statistical correlation of allelic frequencies with latitude was observed. The patterns of genic differentiation in D. melanogaster populations were comparable to those of populations from other continents. The present data on clinal allozymic variation in Indian populations of D. melanogaster further support and validate the hypothesis that occurence of parallel or complementary latitudinal dines across different continental populations provide strong evidence of natural selection maintaining such clinal variation.

引用

页码：449 / 458

页数：10

共 27 条

[1] OBSERVATIONS ON THE EXTENT AND TEMPORAL STABILITY OF LATITUDINAL CLINES FOR ALCOHOL-DEHYDROGENASE ALLOZYMES AND 4 CHROMOSOME INVERSIONS IN DROSOPHILA-MELANOGASTER [J].