作者: Adam D. Richman , Joshua R. Kohn
DOI: 10.1016/S0169-5347(96)10051-3
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摘要: The self-incompatibility (S-) locus of flowering plants is among the most polymorphic known. PCR methods can now be used to estimate both number alleles in natural populations and their sequence diversity. provides an recent effective population size, thus S-locus a tool for examining how species characteristics affect size. Sequence relationships provide another size extending millions years into past. Relationships between S-alleles related genes means dating age origin incompatibility systems determining which, if any, angiosperm families share by homology.