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分子和形态学证据支持H.G.Ye和Gui C.Zhang (Saxifragaceae) 的复活

Long-Fei Fu¹, Tian-Ge Yang², De-Qing Lan²

¹Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, China Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences Guilin China.

|July 4, 2024

概括

根据形态和分子数据,花 (Chrysosplenium guangxiense) 被复活为一个独特的物种,挑战其以前的同义化. 这种脆弱的物种在遗传学上与相关的种类不同.

科学领域:

植物学植物学
植物分类学植物分类学
分子遗传学分子遗传学

背景情况:

起初Chrysosplenium guangxiense被描述为一种新物种,但后来在中国的植物中与C. glossophyllum同义词.
此前,C. guangxiense的遗传学位置和独特的形态特征尚不清楚,需要进一步调查.

研究的目的:

通过分子和形态学数据,澄清氏 (Chrysosplenium guangxiense) 的分类学地位.
为了推断克里索斯普莱尼姆属内的遗传学关系.
报告C. guangxiense的完整塑基因组,并评估其保护状况.

主要方法:

用塑基因组和nrDNA序列进行了家族遗传学分析.
在C. guangxiense,C. glossophyllum和C. hydrocotylifolium之间进行了形态比较.
对C. guangxiense的整体塑基因组进行了测序和分析.

主要成果:

遗传学分析显示,C. guangxiense属于该教派. 它与C.hydrocotylifolium密切相关,但与C.glossophyllum不同.
形态差异包括坚固的根茎,明显的叶子底部和边缘,分离边缘和种子特征.
甘的整体塑基因组为154,004个基因组,其中有111个功能基因.
根据结合的证据,C. guangxiense被复活为一个独特的物种.

结论:

在分类学上,Chrysosplenium guangxiense与C. glossophyllum截然不同,因此应在物种层面上进行识别.
在全球范围内,该物种被归类为脆弱 (VU).
这项研究提供了关键的洞察力,对Chrysosplenium属的分类学和分类学.

关键词:

克里索斯普莱尼乌姆 (Chrysosplenium) 是一种的物质.这种植物属于Saxifragaceae.人类的基因组学.塑体基因组是如何形成的分类学分类学.

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