Open AccessTemporal variation and gametic disequilibrium in Drosophila nasuta
Author(s) -
KUMAR ARUN,
GUPTA J. P.
Publication year - 1988
Publication title -
hereditas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 50
eISSN - 1601-5223
pISSN - 0018-0661
DOI - 10.1111/j.1601-5223.1988.tb00190.x
Subject(s) - biology , disequilibrium , epistasis , genetics , heterozygote advantage , chromosomal inversion , evolutionary biology , linkage disequilibrium , natural selection , inversion (geology) , recombination , chromosome , gene , selection (genetic algorithm) , allele , karyotype , haplotype , medicine , paleontology , structural basin , artificial intelligence , computer science , ophthalmology
The gametic disequilibrium between III‐2 and 111‐35 inversions of the third chromosome of Drosophila nasuta had been examined during different months at two localities. The results indicated that there was a substantial gametic disequilibrium between above inversions. The results also indicated the superiority of double inversion heterozygotes over both homozygotes (standard sequence homozygotes and inversion hotnozygotes) during different months at both localities. This suggested that the high frequency of double inversion heterozygotes might be due to their higher adaptive fitness. It had been suggested that natural selection acting through the suppression of recombination and intrachromosomal epistatic gene interaction providing fitness to the individuals were the main factors leading to above phenomenon in this species.