Stanley H F, Kadwell M, Wheeler J C
Conservation Genetics Group, Institute of Zoology, Regents Park, London, U.K.
Proc Biol Sci. 1994 Apr 22;256(1345):1-6. doi: 10.1098/rspb.1994.0041.
We report the first molecular evolutionary analysis of the family Camelidae by analysing the full DNA sequence of the mitochondrial cytochrome b gene. Estimates for the time of divergence of the Old World (Camelini) and New World (Lamini) tribes obtained from sequence data are in agreement with those derived from the fossil record. The DNA sequence data were also used to test current hypotheses concerning the ancestors of the domesticated llama and alpaca. The results show that hybridization has occurred in the ancestry of both domesticated camelids, obscuring the origin of the domestic species.
我们通过分析线粒体细胞色素b基因的完整DNA序列，首次对骆驼科进行了分子进化分析。从序列数据得出的旧世界（骆驼族）和新世界（羊驼族）部落分化时间的估计，与化石记录得出的估计一致。DNA序列数据还用于检验当前关于家养美洲驼和羊驼祖先的假说。结果表明，两种家养骆驼科动物的祖先都发生了杂交，这使得家养物种的起源变得模糊不清。
