Institute for Conservation Biology and Environmental Management, School of Biological Sciences, University of Wollongong, Wollongong, NSW 2522, Australia.
J Fish Biol. 2010 Aug;77(2):425-31. doi: 10.1111/j.1095-8649.2010.02649.x.
On Australia's south-east coast, hybridization between estuary-restricted black bream Acanthopagrus butcheri Munro and its migratory coastal congener yellowfin bream Acanthopagrus australis (Günther) has led to estuarine populations largely composed of hybrids that are most genetically similar to A. butcheri. The fertilization success achieved when ova of estuary-caught A. butcheri were fertilized with the cryogenically preserved sperm of either ocean-caught A. australis or estuary-caught A. butcheri-like was compared. The experimental crosses, which by chance included both pure parental and hybrid bream, revealed no evidence that gametic incompatibility provides a barrier to fertilization among both pure species and their hybrids.
在澳大利亚东南海岸，河口限制型黑鲈 Acanthopagrus butcheri Munro 与其洄游性沿海同种黄鳍鲈 Acanthopagrus australis (Günther) 之间发生杂交，导致河口种群主要由与 A. butcheri 最为相似的杂种组成。比较了用低温保存的来自海洋捕获的 A. australis 或河口捕获的类似 A. butcheri 的精子对河口捕获的 A. butcheri 的卵子进行受精时所获得的受精成功率。这些实验性杂交种偶然地同时包含了纯亲鱼和杂交鱼，没有证据表明配子不相容性是纯种及其杂种之间受精的障碍。
