Dominance status of shape of male genitalia in interspecific crosses of some Drosophila virilis group species

Dominance status of shape of male genitalia in interspecific crosses of some Drosophila virilis... The heritability of the shape of the main species-specific morphological trait for the Drosophila virilis group-the male mating organ has been analyzed using the hybrid males D. virilis × D. lummei and D. virilis × D. novamexicana. The results suggest an increase in the share of the characters with a recessive status in the evolutionarily younger species and demonstrate the role of sex chromosomes in the implementation of a dominant or recessive status of the trait. The roles of additive and epistatic components of the total variation in the evolution of the dominance status, shown in several known theoretical models and confirmed by our data, are considered. The published data on sterility of hybrid males in interspecific crosses are discussed from the standpoint of the evolution of dominance. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

Dominance status of shape of male genitalia in interspecific crosses of some Drosophila virilis group species

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2013 by Pleiades Publishing, Ltd.
Subject
Biomedicine; Human Genetics; Animal Genetics and Genomics; Microbial Genetics and Genomics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795413060069
Publisher site
See Article on Publisher Site

Abstract

The heritability of the shape of the main species-specific morphological trait for the Drosophila virilis group-the male mating organ has been analyzed using the hybrid males D. virilis × D. lummei and D. virilis × D. novamexicana. The results suggest an increase in the share of the characters with a recessive status in the evolutionarily younger species and demonstrate the role of sex chromosomes in the implementation of a dominant or recessive status of the trait. The roles of additive and epistatic components of the total variation in the evolution of the dominance status, shown in several known theoretical models and confirmed by our data, are considered. The published data on sterility of hybrid males in interspecific crosses are discussed from the standpoint of the evolution of dominance.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Jun 16, 2013

References

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