High male fertility in males of a subdioecious shrub in hand-pollinated crosses
High male fertility in males of a subdioecious shrub in hand-pollinated crosses
复制标题
手工授粉杂交中亚雌雄异株灌木雄性的高雄性生育力
DOI：
10.1093/aobpla/plw067
复制
发表时间：
2016
期刊：
影响因子：
2.9
通讯作者：
M. Nakagawa
中科院分区：
文献类型：
--
作者：
Hui Wang;M. Matsushita;N. Tomaru;M. Nakagawa
在亚雌雄异株种日本芡实的手传粉杂交中，雄性个体在雄性育性的数量和质量上都优于雌雄同体。当母树是雌性个体而不是雌雄同体时，这种雄性优势突出。考虑到雌性的繁殖成功率高于雌雄同体，并且雌雄同体在粳稻中是自交不亲和的，花粉限制可能抑制了雌雄同体在粳稻群体中的转移，并允许雌雄同体的持续存在。亚雌雄异株研究群体可能正沿着雌蕊-雌蕊途径进入到雌蕊-雌蕊的过渡阶段。
Male individuals exhibited an advantage in male fertility in terms of both quantity and quality compared with hermaphrodites in hand-pollinated crosses in the subdioecious species Eurya japonica. This male advantage was prominent when the mother trees were female individuals rather than hermaphrodites. Given that the reproductive success of females is higher than that of hermaphrodites and that hermaphrodites are self-incompatible in E. japonica, pollen limitation may inhibit the shift and permit the persistence of hermaphrodites in this E. japonica population. The subdioecious study population may be entering a transition stage to dioecy along the gynodioecy-dioecy pathway.