Individual Genetic Contributions to Genital Shape Variation between Drosophila simulans and D. mauritiana
Individual Genetic Contributions to Genital Shape Variation between Drosophila simulans and D. mauritiana
复制标题
个体遗传对模拟果蝇和毛里求斯果蝇生殖器形状变异的贡献
DOI：
--
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
A. Moehring
中科院分区：
文献类型：
--
作者：
Hélène LeVasseur;A. Moehring
外生殖器是昆虫进化最快的形态特征之一。在黑腹果蝇的物种亚群中，雄性果蝇拥有一个非对称的外部生殖器结构，称为后叶，即使在密切相关的物种中也高度不同。以前对这个亚组的研究绘制了两个影响叶大小的基因组区域和四个影响叶形状差异的基因组区域。mauritiana和D. sechellia;没有一个区域同时影响大小和形状。在这里，我们调查是否这些重要的区域也影响叶的大小和形状之间的差异重叠的物种对D。mauritiana和D. simulans。我们发现D. mauritiana，以前曾被证明影响D. sechellia的遗传背景也影响着D. simulans遗传背景，其中一个区域影响大小和形状。两个地区也影响形态时，在相互方向渗入。影响生殖器形态的相关物种对内的区域的重叠表明，要么有一个共同的潜在的遗传基础，在这个物种组内的生殖器形态的变化，或有多个相邻的基因座的潜力，影响生殖器形态。
External genitalia are one of the most rapidly evolving morphological features in insects. In the Drosophila melanogaster species subgroup, males possess a nonfertilizing external genital structure, called the posterior lobe, which is highly divergent among even closely related species. A previous study on this subgroup mapped two genomic regions that affect lobe size and four that affect lobe shape differences between D. mauritiana and D. sechellia; none of the regions affected both size and shape. Here, we investigate whether three of these significant regions also affect lobe size and shape differences between the overlapping species pair D. mauritiana and D. simulans. We found that the same three regions of D. mauritiana, previously shown to affect lobe morphology in a D. sechellia genetic background, also affect lobe morphology in a D. simulans genetic background, with one of the regions affecting both size and shape. Two of the regions also affected morphology when introgressed in the reciprocal direction. The overlap of regions affecting genital morphology within related species pairs indicates either that there is a common underlying genetic basis for variation in genital morphology within this species group or that there are multiple adjacent loci with the potential to influence genital morphology.
影响因子：
3.3
作者：
Jianjun Liu;John M. Mercer;L. F. Stam;Gregory C. Gibson;Zhao-Bang Zeng;Cathy C. Laurie
通讯作者：
Jianjun Liu;John M. Mercer;L. F. Stam;Gregory C. Gibson;Zhao-Bang Zeng;Cathy C. Laurie
影响因子：
3.3
作者：
Zhao-Bang Zeng;Jianjun Liu;L. F. Stam;C. Kao;J. Mercer;C. Laurie
通讯作者：
Zhao-Bang Zeng;Jianjun Liu;L. F. Stam;C. Kao;J. Mercer;C. Laurie