Significant differences in outcrossing rate, self-incompatibility, and inbreeding depression between two widely hybridizing species of Geum
نویسندگان
چکیده
منابع مشابه
Loss of gametophytic self-incompatibility with evolution of inbreeding depression.
Gametophytic self-incompatibility (SI) in plants is a widespread mechanism preventing self-fertilization and the ensuing inbreeding depression, but it often evolves to self-compatibility. We analyze genetic mechanisms for the breakdown of gametophytic SI, incorporating a dynamic model for the evolution of inbreeding depression allowing for partial purging of nearly recessive lethal mutations by...
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15 صفحه اولNo inbreeding depression in an outcrossing alpine species: The breeding system of Campanula thyrsoides
Plants that live in fragmented landscapes, where populations are isolated from each other and in which long-distance dispersal is essential for colonization of empty sites, reproduction should be favoured by self-compatibility (Baker’s law). Nevertheless, outcrossing mechanisms, such as self-incompatibility and dichogamy, are common in many species and are often maintained by inbreeding depress...
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ژورنال
عنوان ژورنال: Biological Journal of the Linnean Society
سال: 2010
ISSN: 0024-4066
DOI: 10.1111/j.1095-8312.2010.01552.x