Evolution of sex-specific wing shape at the widerwing locus in four species of Nasonia.
Evolution of sex-specific wing shape at the widerwing locus in four species of Nasonia.
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DOI：
10.1038/hdy.2009.146
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发表时间：
2010-03
期刊：
影响因子：
3.8
通讯作者：
Werren, J. H.
中科院分区：
文献类型：
--
作者：
Loehlin, D. W.;Enders, L. S.;Werren, J. H.
物种之间的形态差异在遗传水平上是如何进化的？本研究探讨了模式寄生蜂Nasonia种间雄蜂翅大小差异的遗传基础。不能飞的N.丽翅凤蝶的雄性比其姐妹种丽翅凤蝶的雄性小2.3倍。长颈鹿我们描述了一个主要的遗传因素，这种差异：性别特异性宽翅（wdw）基因座，我们已经从N。giraulti转化为N. vitrypennis和映射到0.9兆区域的染色体1。这是一个从大翅雀鲷中渗入的wdw基因。giraulti转化为小翅N.通过翅区特异性大小的变化，丽翅蝽使雄性而非雌性前翅宽度增加30%。间接证据表明，细胞数量的变化，整个翅膀解释了大部分的wdw翅膀大小的差异，而细胞大小的变化是重要的，在中央的翅膀。从该属其它种的同一位点渐渗，N。longicornis和N. oneida，转化为N.丽翅蝽产生中等和大的雄性翅膀。据我们所知，这是第一个研究渗入一个形态数量性状位点（QTL）从多个物种到一个共同的遗传背景。wdw与其他QTL的上位性互作也通过从N. vitripennis转化为N.长颈鹿主要发现是：1）wdw位点的变化具有性别和区域特异性，因此可能是调节性的; 2）wdw位点似乎是细胞大小和细胞数量的共同调节因子; 3）wdw位点在三个物种中进化出不同的翅宽效应。
How do morphological differences between species evolve at the genetic level? This study investigates the genetic basis of recent divergence in male wing size between species of the model parasitoid wasp Nasonia. The forewings of flightless N. vitripennis males are 2.3 times smaller than males of their flighted sister species N. giraulti. We describe a major genetic contributor to this difference: the sex-specific widerwing (wdw) locus, which we have backcrossed from N. giraulti into N. vitripennis and mapped to an 0.9 megabase region of chromosome 1. This introgression of wdw from large-winged N. giraulti into small-winged N. vitripennis increases male but not female forewing width by 30% through wing region-specific size changes. Indirect evidence suggests that cell number changes across the wing explain the majority of the wdw wing size difference while changes in cell size are important in the center of the wing. Introgressing the same locus from the other species in the genus, N. longicornis and N. oneida, into N. vitripennis produces intermediate and large male wing sizes. To our knowledge, this is the first study to introgress a morphological quantitative trait locus (QTL) from multiple species into a common genetic background. Epistatic interactions between wdw and other QTL are also identified by introgressing wdw from N. vitripennis into N. giraulti. The main findings are 1) the changes at wdw have sex- and region-specific effects and could therefore be regulatory, 2) the wdw locus appears to be a co-regulator of cell size and cell number, and 3) the wdw locus has evolved different wing width effects in three species.
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影响因子：
3.3
作者：
L'Hote, David;Serres, Catherine;Vaiman, Daniel
通讯作者：
Vaiman, Daniel
两个层面的进化：基因和形态。
影响因子：
9.8
作者：
Carroll, SB
通讯作者：
Carroll, SB
影响因子：
3.8
作者：
Clark, M. E.;O'Hara, F. P.;Chawla, A.;Werren, J. H.
通讯作者：
Werren, J. H.
DOI：
10.1007/bf02078996
发表时间：
1929-01-01
期刊：
Archiv fuer Entwicklungsmechanik Berlin
影响因子：
--
作者：
Dob[r]zhansky, T.
通讯作者：
Dob[r]zhansky, T.
影响因子：
3.3
作者：
Dworkin, Ian;Gibson, Greg
通讯作者：
Gibson, Greg