标题
系统发生学和生物地理学Apios(豆科)推断从核和质体基因序列
文档类型
文章
出版日期
9 - 2014
出版来源
国际植物科学杂志》上
卷号
175年
问题数量
7
第一页
764年
最后一页
780年
石头
1058 - 5893
文摘
研究的前提。Apios是一种多年生缠绕草本植物属东亚和北美之间有一个分离的分布。它的一些物种显示巨大的经济潜力的块茎作物和来源有用的类黄酮。然而,Apios尚未系统发生学的研究使用分子数据。几个问题仍未得到解答,包括Apios单系统的物种界限,种间关系,洲际间断分布的模式和时间分布,和块茎形成的进化。方法。进行了系统发育分析的基础上,从核能和质体基因组序列使用最大的吝啬和最大似然方法。物种树最好通过贝叶斯推断分析。分歧时间估计使用多个校准点的野兽,和祖先的地区与S-DIVA推断。关键的结果。 Our DNA sequence data recognize the five species of Apios, including A. carnea, A. fortunei, A. delavayi, A. americana, and A. priceana. Apios species form a clade in the basal position of the phaseoloid group, and within Apios, A. carnea is sister to the remaining species. The two North American species (A. americana and A. priceana) are more closely related to each other than either is to any of the Asian species, and their ancestral populations may have migrated from Asia in the late Miocene and early Pliocene via the Bering land bridge. Well-developed tuber is a derived trait in Apios that may function as assisting vegetative reproduction. Parapatric speciation may have happened in both eastern Asia and North America, adapting to specific habitats or pollinators. Conclusions. Apios is a monophyletic lineage that diverged early in the phaseoloid group. Within Apios, the two North American species form a clade that was derived from Asian ancestral populations in the late Miocene. Unequal range of distribution of species in both eastern Asia and North America may be explained by parapatric speciation.
建议引用
Li Jianhua Jinhuo江,冬青范德Stel,奥斯汀Homkes,肯尼斯•布朗和杰弗里•Corajod Zhiduan陈。“系统发生学和生物地理学Apios(豆科)从核和质体基因序列推断。”国际植物科学杂志》上175年,没有。7(2014年9月1日):764 - 80。doi: 10.1086/676972。
