The genetic architecture of coordinately evolving male wing pigmentation and courtship behavior in Drosophila elegans and Drosophila gunungcola

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Title:	The genetic architecture of coordinately evolving male wing pigmentation and courtship behavior in Drosophila elegans and Drosophila gunungcola
Authors:	葉淑丹;Yeh, Shu-Dan;True, John R
Contributors:	生醫理工學院生命科學系
Keywords:	Animals;Drosophila - genetics;Drosophila - physiology;Epistasis, Genetic;Evolution, Molecular;Female;Insects;Investigations;Male;Pigmentation - genetics;Quantitative genetics;Quantitative Trait Loci;Sexual Behavior, Animal;Wings, Animal - anatomy & histology
Date:	2014-01-01
Issue Date:	2026-04-23 11:14:05 (UTC+8)
Publisher:	Genetics Society of America;United States: Oxford University Press
Abstract:	摘要： Abstract Many adaptive phenotypes consist of combinations of simpler traits that act synergistically, such as morphological traits and the behaviors that use those traits. Genetic correlations between components of such combinatorial traits, in the form of pleiotropic or tightly linked genes, can in principle promote the evolution and maintenance of these traits. In the Oriental Drosophila melanogaster species group, male wing pigmentation shows phylogenetic correlations with male courtship behavior; species with male-specific apical wing melanin spots also exhibit male visual wing displays, whereas species lacking these spots generally lack the displays. In this study, we investigated the quantitative genetic basis of divergence in male wing spots and displays between D. elegans, which possesses both traits, and its sibling species D. gunungcola, which lacks them. We found that divergence in wing spot size is determined by at least three quantitative trait loci (QTL) and divergence in courtship score is determined by at least four QTL. On the autosomes, QTL locations for pigmentation and behavior were generally separate, but on the X chromosome two clusters of QTL were found affecting both wing pigmentation and courtship behavior. We also examined the genetic basis of divergence in three components of male courtship, wing display, circling, and body shaking. Each of these showed a distinct genetic architecture, with some QTL mapping to similar positions as QTL for overall courtship score. Pairwise tests for interactions between marker loci revealed evidence of epistasis between putative QTL for wing pigmentation but not those for courtship behavior. The clustering of X-linked QTL for male pigmentation and behavior is consistent with the concerted evolution of these traits and motivates fine-scale mapping studies to elucidate the nature of the contributing genetic factors in these intervals. 其他題名： G3 (Bethesda) 出版者： United States: Oxford University Press 出版日期： 2014-11-01 出處： G3 : genes - genomes - genetics, 2014-11, Vol.4 (11), p.2079-2093 資源來源： Publicly Available Content Database 版權： 2014 Yeh and True 2014 版權： Copyright © 2014 Yeh and True. 版權： 2014 Yeh and True. 版權： Copyright © 2014 Yeh and True 2014 識別號： ISSN: 2160-1836 識別號： EISSN: 2160-1836 識別號： DOI: 10.1534/g3.114.013037 識別號： PMID: 25168010
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