Differences in offspring size predict the direction of isolation asymmetry between populations of a placental fish
Differences in offspring size predict the direction of isolation asymmetry between populations of a placental fish
复制标题
后代大小的差异预测胎盘鱼种群之间隔离不对称的方向
DOI:
10.1098/rsbl.2013.0327
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发表时间:
2013
期刊:
影响因子:
3.3
通讯作者:
Travis, J.
中科院分区:
文献类型:
--
作者:
Schrader, M.;Fuller, R. C.;Travis, J.
Crosses between populations or species often display an asymmetry in the fitness of reciprocalF1hybrids. This pattern, referred to as isolation asymmetry or Darwin's Corollary to Haldane's Rule, has been observed in taxa from plants to vertebrates, yet we still know little about which factors determine its magnitude and direction. Here, we show that differences in offspring size predict the direction of isolation asymmetry observed in crosses between populations of a placental fish,Heterandria formosa. In crosses between populations with differences in offspring size, high rates of hybrid inviability occur only when the mother is from a population characterized by small offspring. Crosses between populations that display similarly sized offspring, whether large or small, do not result in high levels of hybrid inviability in either direction. We suggest this asymmetric pattern of reproductive isolation is due to a disruption of parent–offspring coadaptation that emerges from selection for differently sized offspring in different populations.
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影响因子:
2.6
作者:
Matthew Schrader;J. Travis
通讯作者:
J. Travis
影响因子:
2.9
作者:
Schrader, Matthew;Travis, Joseph
通讯作者:
Travis, Joseph
影响因子:
2.6
作者:
Schrader, Matthew;Travis, Joseph
通讯作者:
Travis, Joseph
影响因子:
2.9
作者:
Kölliker, M;Brodie, ED;Moore, AJ
通讯作者:
Moore, AJ
DOI:
--
发表时间:
1998
期刊:
Evolution; international journal of organic evolution
影响因子:
--
作者:
J. Wolf;E. Brodie
通讯作者:
E. Brodie