Garcia P, Vences F J, Pérez de la Vega M, Allard R W
Departamento de Genética, Facultad de Biologia, Universidad de León, Spain.
Genetics. 1989 Jul;122(3):687-94. doi: 10.1093/genetics/122.3.687.
Spanish explorers and colonists inadvertently started a massive experiment in evolutionary genetics when they accidentally introduced Avena barbata to California from Spain during the seventeenth and eighteenth centuries. Assays of the Spanish and Californian gene pools of this species for 15 loci show that the present day Spanish gene pool, particularly that of Southwestern Spain, is identical or virtually identical to that of California for five loci and closely similar for nine loci. Despite their similar allelic and single-locus genotypic compositions, the present-day Spanish and Californian gene pools are differently structured on a multilocus genetic basis. Evolutionary implications of these results are discussed.
17和18世纪,西班牙探险家和殖民者在不经意间开启了一场大规模的进化遗传学实验,当时他们意外地将野燕麦从西班牙引入了加利福尼亚。对该物种西班牙和加利福尼亚基因库中15个位点的分析表明,如今西班牙的基因库,尤其是西班牙西南部的基因库,在5个位点上与加利福尼亚的基因库相同或几乎相同,在9个位点上非常相似。尽管它们的等位基因和单基因座基因型组成相似,但如今西班牙和加利福尼亚的基因库在多位点遗传基础上结构不同。本文讨论了这些结果的进化意义。