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贝叶斯尖端日期的基因结构和生物地理学Cissampelideae (Menispermaceae):缓解同质形态特征的效应
Lian Lian1,2, Huan-Wen Peng1,2,3, Andrey S Erst4
1State Key Laboratory of Plant Diversity and Prominent Crops, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China.
概括
整合形态和分子数据可以改善化石的位置和进化洞察力. 缓解同质性特征可以增强Cissampelideae的遗传学准确性和生物地理学重建.
科学领域:
- 进化生物学 进化生物学
- 人类遗传学 是一个学科.
- 古生物学的古生物学
背景情况:
- 化石种类的准确位置对于理解进化历史至关重要.
- 同质的形态特征可能导致错误的遗传学推断.
- 在Cissampelideae的进化和生物地理学需要强大的遗传学分析.
研究的目的:
- 为了证明在植物遗传学分析中减轻形态同质化的方法.
- 为了改善Cissampelide.ae.内部的化石种类的位置.
- 重建Cissampelide.ae.的时空进化和生物地理历史.
主要方法:
- 汇集的形态数据,分子支架和组合的数据集.
- 应用了节和贝叶斯系遗传学分析,包括尖端日期.
- 通过去除或重新加重形态特征来减轻同质化.
主要成果:
- 仅仅是形态学数据就导致了化石分类的糟糕配置.
- 分子支架和组合数据显著改善了家族遗传学分辨率.
- 修订了斯蒂芬亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚亚 博特里奥迪斯基亚和重新分配的化石种群为Diploclisia.
- 贝叶斯尖端日期树与减少的同位素表现出最好的平分层适应.
结论:
- 组合的形态和分子数据,与同位素减轻,对于准确的遗传学是必不可少的.
- Cissampelideae起源于白纪晚期的亚洲,并在全球分散.
- 该研究提供了用于植物遗传学分析的实用方法,并对植物分散事件的洞察力.
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