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节的杂种起源和表型变异的分子证据。

Molecular Evidence for Hybrid Origin and Phenotypic Variation of Section .

机构信息

Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, National Engineering Research Center for Floriculture, Beijing Laboratory of Urban and Rural Ecological Environment, Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants of Ministry of Education, School of Landscape Architecture, Beijing Forestry University, Beijing 100083, China.

出版信息

Genes (Basel). 2020 Aug 25;11(9):996. doi: 10.3390/genes11090996.

DOI:10.3390/genes11090996
PMID:32854427
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7564265/
Abstract

sect. (Rosaceae) is an important parent of modern rose that is widely distributed throughout China and plays an important role in breeding and molecular biological research. sect. has variable morphological traits and mixed germplasm. However, the taxonomic status and genetic background of sect. varieties remain unclear. In this study, we collected germplasm resources from sect. varieties with different morphological traits. Simple sequence repeat (SSR) markers, chloroplast markers, and single copy nuclear markers were used to explore the genetic background of these germplasm resources. We described the origin of hybridization of rose germplasm resources by combining different molecular markers. The results showed that the flower and hip traits of different species in sect. were significantly different. The SSR analysis showed that the two wild type varieties have different genetic backgrounds. The double petal varieties of sect. could be hybrids of two wild type varieties. A phylogenetic analysis showed that the maternal inheritance of sect. varieties had two different origins. To some extent, variation in the morphological traits of double petal species of sect. reflects the influence of cultivation process. This study emphasizes that different genetic markers vary in their characteristics. Therefore, analyzing different genetic markers in could provide an insight into highly heterozygous species.

摘要

蔷薇属（Rosaceae）是现代玫瑰的重要亲本，广泛分布于中国，在育种和分子生物学研究中发挥着重要作用。蔷薇属具有多变的形态特征和混合的种质。然而，蔷薇属品种的分类地位和遗传背景仍不清楚。本研究从具有不同形态特征的蔷薇属品种中收集了种质资源。利用简单重复序列（SSR）标记、叶绿体标记和单拷贝核标记，探讨了这些种质资源的遗传背景。我们通过结合不同的分子标记，描述了玫瑰种质资源杂交的起源。结果表明，蔷薇属不同种的花和果的形态特征差异显著。SSR 分析表明，两个野生型品种具有不同的遗传背景。蔷薇属双瓣品种可能是两个野生型品种的杂种。系统发育分析表明，蔷薇属品种的母系遗传具有两个不同的起源。在某种程度上，蔷薇属双瓣种形态特征的变异反映了栽培过程的影响。本研究强调了不同遗传标记的特点各不相同。因此，分析蔷薇属不同的遗传标记可以深入了解高度杂合的物种。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e9bd/7564265/5d62fa13d205/genes-11-00996-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e9bd/7564265/32924b0e336f/genes-11-00996-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e9bd/7564265/26b9584c947a/genes-11-00996-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e9bd/7564265/720f576ecb8a/genes-11-00996-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e9bd/7564265/8c0eba188007/genes-11-00996-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e9bd/7564265/30c9822c1de8/genes-11-00996-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e9bd/7564265/6457f82dc203/genes-11-00996-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e9bd/7564265/c308f280c929/genes-11-00996-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e9bd/7564265/5d62fa13d205/genes-11-00996-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e9bd/7564265/32924b0e336f/genes-11-00996-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e9bd/7564265/26b9584c947a/genes-11-00996-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e9bd/7564265/720f576ecb8a/genes-11-00996-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e9bd/7564265/8c0eba188007/genes-11-00996-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e9bd/7564265/30c9822c1de8/genes-11-00996-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e9bd/7564265/6457f82dc203/genes-11-00996-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e9bd/7564265/c308f280c929/genes-11-00996-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e9bd/7564265/5d62fa13d205/genes-11-00996-g008.jpg

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