Association analysis of yield, oil and fatty acid content, and main phenotypic traits in Paeonia rockii as an oil crop
Association analysis of yield, oil and fatty acid content, and main phenotypic traits in Paeonia rockii as an oil crop
复制标题
油料作物紫斑牡丹产量、含油脂肪酸含量及主要表型性状关联分析
DOI：
10.1080/14620316.2017.1381045
复制
发表时间：
2018-01-01
影响因子：
1.9
通讯作者：
Cheng Fangyun
中科院分区：
文献类型：
--
作者：
Cui Huliang;Chen Cunrui;Cheng Fangyun
摘要 牡丹最近在中国被认定为油料作物。为了确定与九个重要的石油相关性状相关的分子标记，我们使用 102 个多态性简单序列重复 (SSR) 连续三年对 205 个 P. rockii 基因型进行了关联分析。结果，表型性状表现出较高的变异系数（CV）水平，范围为7.47%至72.76%。基于一般线性模型（GLM，Q）和混合线性模型（MLM，Q + K），标记-性状关联是不同的；然而，连续三个季节共重复检测到74个等位基因变异，其中15个SSR标记与单株产量（Y）、单株有效果数（PFN）、产籽率（YFWR）、百粒重（HKW）和亚麻酸含量（LA）等5个性状相关。总之，与Y相关的SSR标记ps207、ps328和ps356，以及与LA相关的ps345，可为油用牡丹育种提供有效的参考。
ABSTRACT Tree peony has been recently recognised as an oil crop in China. To identify the molecular markers associated with nine important oil-related traits, we performed association analysis among 205 P. rockii genotypes for three consecutive years using 102 polymorphic simple sequence repeats (SSRs). As a result, the phenotypic traits showed higher coefficient of variation (CV) level ranged from 7.47% to 72.76%. Based on the general linear model (GLM, Q) and mixed linear model (MLM, Q + K), the marker-trait associations were different; however, a total of 74 allelic variations were repeatedly detected in all the three consecutive seasons, with 15 SSR markers associated with five traits, such as yield per plant (Y), the number of valid fruits per plant (PFN), the produced seed ratio (YFWR), hundred seed weight (HKW), and linolenic acid content (LA). In conclusion, the SSR markers ps207, ps328 and ps356 associated with Y, and ps345 associated with LA, which would provide an efficient reference for oil tree peony breeding.