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首页> 外文期刊>Conservation genetics >Molecular and morphological evidence for hybrid origin and matroclinal inheritance of an endangered wild rose, Rosa x pseudobanksiae (Rosaceae) from China
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Molecular and morphological evidence for hybrid origin and matroclinal inheritance of an endangered wild rose, Rosa x pseudobanksiae (Rosaceae) from China

机译：濒危野玫瑰杂交产地和比赛遗传的分子与形态学证据，来自中国的罗莎X伪博纳西亚（Rosaceae）

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摘要

The distinction between hybrids and species of hybrid origin is significant for plant diversity conservation. Interspecific hybridization within the genus Rosa is a common phenomenon. Based on field observation, we hypothesized that one previously published species, Rosa pseudobanksiae (endangered category: CR) might be a hybrid. In this study, we utilized molecular approaches involving three nuclear markers and four plastid markers to examine the origin of R. pseudobanksiae. Our evidence shows that it is indeed a natural homoploid hybrid between R. banksiae var. normalis and R. multiflora var. cathayensis, and that gene flows bidirectionally. Our multivariate morphometric analyses provide strong evidence for a matrocliny in R. x pseudobanksiae individuals. R. x pseudobanksiae has diverse morphological variations among individuals andshares the overlapped distributions with its parental progenitors. This taxon has not developed into a stabilized and self-evolving lineage with the high sterility in seed sets.
机译：杂交种和杂化原产地之间的区别对于植物多样性保护是显着的。罗莎属内的三分之一杂交是一种常见的现象。基于现场观察，我们假设一个先前公布的物种，罗莎伪恐怖症（濒危类别：Cr）可能是一个混合动力。在这项研究中，我们利用涉及三个核标志物和四种塑体标志物的分子方法来检查R.Pseudobanksiae的起源。我们的证据表明，它确实是R. Banksiae Var之间的天然同性恋杂交。 oranalis和r. multiflora var。 Cathayensis，并且该基因双向流动。我们的多变量形态学分析为R. X Pseudobanksiae个人中的一个mattocliny提供了强有力的证据。 R. X Pseudobanksiae在个人的和父母祖细胞中具有多种形态变异。该分类群并未发展成稳定和自我不断不断发展的血丝，种子套装高性能。

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