Allaby Robin G, Brown Terence A
Department of Biomolecular Sciences, University of Manchester Institute of Science and Technology, Manchester M60 1QD, UK.
Genome. 2003 Jun;46(3):448-53. doi: 10.1139/g03-025.
Amplified fragment length polymorphism (AFLP) datasets have been used to construct neighbor-joining trees from which monophyletic origins for crops such as einkorn wheat, barley, and emmer wheat have been inferred. We simulated several different multiple domestication scenarios for an imaginary cereal crop and examined the resulting domesticated populations. The simulations showed that the population biology aspects of the domestication process can result in independently domesticated populations merging in such a way that a monophyletic origin is erroneously inferred when the resulting population is examined by AFLP genotyping a nd neighbor-joining analysis. The resultsbring into question the use of this method to infer the origins of real crops.
扩增片段长度多态性（AFLP）数据集已被用于构建邻接树，据此推断出单粒小麦、大麦和二粒小麦等作物的单系起源。我们针对一种假想的谷类作物模拟了几种不同的多次驯化情景，并对由此产生的驯化种群进行了研究。模拟结果表明，驯化过程中的种群生物学因素可能导致独立驯化的种群合并，从而在通过AFLP基因分型和邻接分析对最终种群进行检测时错误地推断出单系起源。这些结果对使用该方法推断实际作物的起源提出了质疑。
