Mateu-Andrés I, Segarra-Moragues J G
Instituto Cavanilles de Biodiversidad y Biología Evolutiva, C/Dr. Moliner 50-E46100-Burjassot, Valencia, Spain.
Ann Bot. 2003 Nov;92(5):647-55. doi: 10.1093/aob/mcg184. Epub 2003 Sep 10.
Forty populations from eight taxa belonging to six species of Antirrhinum were studied for electrophoretic differentiation at 14 allozyme loci. All the studied species show that marker alleles and genetic distances between conspecific populations are lower than for other species of the genus. Results permit the recognition of A. onubensis and A. boissieri at specific rank. The low level of genetic distance together with morphological characters and sympatric range, support the recognition of A. ambiguum as a new subspecies of A. graniticum, as A. graniticum ssp. ambiguum Mateu & Segarra stat. nov. The results of the study support separation of the studied taxa into two groups coinciding with subsections Streptosepalum and Antirrhinum, but disagreeing with the arrangement of species into them. According to the results of the study these groups consist of A. meonanthum and A. braun-blanquetii (Streptosepalum) and A. graniticum s.l., A. onubensis and A. boissieri (Antirrhinum). The status of A. meonanthum var. rothmaleri requires further clarification.
对金鱼草属六个物种的八个分类单元中的40个种群进行了研究，分析了14个等位酶位点的电泳分化情况。所有研究物种均表明，同种种群之间的标记等位基因和遗传距离低于该属的其他物种。研究结果支持将努比金鱼草和博氏金鱼草认定为独立物种。遗传距离较低，再加上形态特征和同域分布范围，支持将歧化金鱼草认定为花岗岩金鱼草的一个新亚种，即花岗岩金鱼草歧化亚种Mateu & Segarra，新组合。研究结果支持将所研究的分类单元分为两组，这与裂萼组和金鱼草组一致，但与其中物种的分类安排不一致。根据研究结果，这些组包括淡黄金鱼草和布氏金鱼草（裂萼组）以及广义的花岗岩金鱼草、努比金鱼草和博氏金鱼草（金鱼草组）。淡黄金鱼草罗氏变种的分类地位需要进一步阐明。
