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韩国糙叶酸模和钝叶酸模（蓼科）自然杂交的分子证据。

Molecular evidence for natural hybridization between Rumex crispus and R. obtusifolius (Polygonaceae) in Korea.

机构信息

School of Biological Sciences, Seoul National University, Seoul, 08826, Korea.

出版信息

Sci Rep. 2022 Mar 31;12(1):5423. doi: 10.1038/s41598-022-09292-9.

DOI:10.1038/s41598-022-09292-9
PMID:35361815
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8971494/
Abstract

Interspecific hybridization has been suggested to occur frequently in Rumex (Polygonaceae). Several hypothesized combinations of parental species of hybrids based on their intermediate morphology have been suggested in the genus, but few of them have been phylogenetically tested. We analyzed nuclear and chloroplast DNA sequence data of a putative natural hybrid between Rumex crispus and Rumex obtusifolius from Korea to confirm its hybrid status and to determine the maternal parent. Analysis of the nuclear DNA pgiC region revealed that R. crispus and R. obtusifolius have contributed to the nuclear genome of the putative hybrids. The haplotype distribution pattern inferred from the combined sequence data set of five chloroplast DNA regions (matK, rbcL-accD IGS, trnK-rps16 IGS, ycf6-psbM IGS and psbA-trnH IGS) indicated bidirectional hybridization events between R. crispus and R. obtusifolius. This paper provides the first molecular evidence for interspecific hybridization between R. crispus and R. obtusifolius. In addition, our findings strongly suggested that Korean populations of Rumex japonicus have a hybrid origin, and R. crispus may represent one of the parental taxa.

摘要

种间杂交被认为在酸模属（蓼科）中频繁发生。该属中基于中间形态提出了几种杂种亲本种的假设组合，但其中很少有经过系统发育测试。我们分析了来自韩国的推测自然杂种酸模和钝叶酸模之间的核和叶绿体 DNA 序列数据，以确认其杂种状态并确定母本。核 DNA pgiC 区域的分析表明，R. crispus 和 R. obtusifolius 对假定杂种的核基因组有贡献。从五个叶绿体 DNA 区域（matK、rbcL-accD IGS、trnK-rps16 IGS、ycf6-psbM IGS 和 psbA-trnH IGS）的组合序列数据集推断出的单倍型分布模式表明 R. crispus 和 R. obtusifolius 之间发生了双向杂交事件。本文为 R. crispus 和 R. obtusifolius 之间的种间杂交提供了第一个分子证据。此外，我们的发现强烈表明，韩国的日本酸模种群具有杂种起源，而 R. crispus 可能代表一个亲本类群。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5f7/8971494/bc9437b992a2/41598_2022_9292_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5f7/8971494/c2dc921bc170/41598_2022_9292_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5f7/8971494/1b8c018c0990/41598_2022_9292_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5f7/8971494/c702c4dab942/41598_2022_9292_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5f7/8971494/bc9437b992a2/41598_2022_9292_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5f7/8971494/c2dc921bc170/41598_2022_9292_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5f7/8971494/1b8c018c0990/41598_2022_9292_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5f7/8971494/c702c4dab942/41598_2022_9292_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b5f7/8971494/bc9437b992a2/41598_2022_9292_Fig4_HTML.jpg

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