保山市农科所育成大麦品种及其系谱分析

The Barley Varieties Bred by Baoshan Institution of Agricultural Sciences and Their Pedigree Analysis

系谱分析能够简便有效地阐明育成品种的整体遗传基础,掌握育成品种的遗传基础可揭示品种演变特点,总结亲本选配的经验,并指导育种。本研究对保山市农业科学研究所2000年以后育成的21个大麦系列品种的育种途径及其品种系谱进行分析,结果表明,杂交育种是保山市农业科学研究所大麦育种的主要方法,76.2%的品种是通过杂交育种育成的,23.8%的品种是经过系统选择育种而成。所育成的21个大麦系列品种来源于20个细胞核祖先亲本和10个细胞质祖先亲本。来源于墨西哥的亲本细胞核遗传贡献值最大,为62.35%,表明保大麦系列品种祖先亲本主要来源于墨西哥。来源于墨西哥的亲本‘YS500’、‘V008’、‘8640’、‘Peaosanhos-174’累计细胞核贡献值最大、衍生品种最多,为核心祖先亲本。

Pedigree analysis can simply and effectively elucidate the integrated genetic basis of breeding varieties,and grasping the genetic basis of breeding varieties is helpful to reveal the characteristics of variety evolution,summarize the experience of parental selection and guide variety breeding.This research analyzed the breeding methods and the variety pedigree of 21 barley varieties bred by Baoshan Institution of Agricultural Sciences since 2000.The results show that the hybrid breeding is the main barley breeding method of Baoshan Institution of Agricultural Sciences,76.2%of the varieties were bred through cross-breeding,23.8%of the varieties were bred through systematic selection.The 21 barley varieties were derived from 20 cell nucleus ancestor parents and 10 cytoplasm ancestor parents.The parental cell nucleus from Mexico gave the largest contribution value,which was 62.35%,indicating that the ancestral parents of Baodamai series were mainly from Mexico.The parents‘YS500’,‘V008’,‘8640’and‘Peaosanhos-174’from Mexico had the largest cumulative cell nucleus contribution value and most derived varieties,which were the core ancestral parents.