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来自全聚体Tragopogon miscellus及其双体父母的塑基因组的比较分析

U Mukhtar¹, S C Newmarch¹, R C Winkworth¹

¹School of Agriculture and Environment, Massey University, Palmerston North, New Zealand.

Plant biology (Stuttgart, Germany)

|September 15, 2025

概括

特拉戈波贡全聚类动物保留了母体的塑基因组 (胎盘体),有一个例外表明反向交叉. 质体分析揭示了这个模型系统中的多体起源和种群动态.

科学领域:

植物遗传学植物遗传学
进化生物学是进化的生物学.
基因组学就是基因组学.

背景情况:

特拉戈波贡 (Tragopogon) 作为研究全聚体形成的关键模型.
之前的研究重点是Tragopogon allopolyploids的核基因进化.
尽管它们与核基因组相互作用,但Tragopogon全聚体中的器官基因组仍未得到充分研究.

研究的目的:

重建和分析Tragopogon全聚聚类及其双类祖先中的塑基因组 (质体) 的结构和变异性.
通过使用塑体数据,调查Tragopogon全聚类动物的母性起源和种群动态.

主要方法:

来自自然和合成Tragopogon全聚聚和双父母的基因组图书馆的Illumina测序.
整体塑体的组装从脱皮测序数据.
进行比较分析以量化塑体体中的结构和核酸变异.

主要成果:

特拉戈波贡的塑料体呈现出典型的四部分结构,其尺寸与其他阿斯特拉属植物物种相似.
分析的12个塑体体显示出高序列一致性 (99.5%-100%).
在大多数情况下,多倍体塑体与预期的母体双倍体父体相匹配;一个多倍体显示T. dubius塑体类型,表明潜在的反向交叉.

结论:

质体序列对于推断Tragopogon多倍体的母系祖先是有价值的.
观察到的塑体模式表明反向交叉事件可能会影响多体种群的存活率.
进一步研究跨地理分布的塑体变异可以阐明多体进化和动态.

关键词:

星座科 (Asteraceae) 是一个植物.这是一场悲剧,Tragopogon.这是一个内进的进攻.一个塑料的塑料.多重积分多样性多重积分多样性

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