Dept of Ecology and Evolution, University of Chicago, Barnes Laboratory, 5630 S. Ingleside Avenue, Chicago, IL 60637, USA.
Trends Ecol Evol. 1991 Oct;6(10):320-5. doi: 10.1016/0169-5347(91)90039-Z.
In some dioecious plant species, mates and/or females have large and presumably costly opposite-sex structures that are sterile. This is termed 'cryptic dioecy'. Several new cases of cryptic dioecy have recently been studied. They may give information about the minimal requirements for the evolution of separate sexes from hermaphroditism, because the most important differences contributing to the initial advantage of the breeding system have not been obscured by further developments. Reviewed in this light, cryptic dioecy can provide evidence on the role of reallocation of reproductive resources in the evolution of dioecy.
在一些雌雄异株的植物物种中，雄性和/或雌性具有大而昂贵的异性结构，但这些结构是不育的。这被称为“隐性雌雄异株”。最近研究了几个新的隐性雌雄异株案例。它们可能提供有关从雌雄同体进化为雌雄异体所需的最小要求的信息，因为导致繁殖系统最初优势的最重要差异并没有被进一步的发展所掩盖。从这个角度来看，隐性雌雄异株可以提供证据，证明生殖资源的重新分配在雌雄异株的进化中的作用。
