干旱区生态环境知识资源中心(Arid): 高丹草重组自交系群体的遗传变异与高产种质的创新

Arid

	高丹草重组自交系群体的遗传变异与高产种质的创新
其他题名	Variety of Recombinant Inbred Line Population and Creation of Germplasm with High Yield in Sorghum-Sudan Grass
	逯晓萍 1; 云锦凤 2; 张雅慧 3; 薛春雷 1; 陈强 4
ISSN	1000-7091
出版年	2009
卷号	24 期号:5 页码:90-95
中文摘要	高丹草是一年生禾本科新型饲用牧草,提高其饲草产量是高丹草育种的重要目标.以高粱314A*棕壳苏丹草的F_(2:3)遗传作图群体的后代材料建立的重组自交系(Recombinant inbred line,RIL)群体为材料, 对后代进行遗传变异和DNA多样性分析.结果表明:通过采用两种方法(性状和分子标记)进行同时选择,获得了9个高产的超亲重组后代.通过SSR标记分析RIL群体的DNA多样性,可知家系间存在较大的遗传变异,杂交重组产生的超亲高产种质分布在不同类群中.鉴定获得了2组SSR遗传距离接近0而且在主要农艺性状和产量等方面相似,只在抗性方面有差异的不同家系.农艺性状和抗性等鉴定试验筛选了4份性状优良的高丹草新种质并已有2份进入区域试验.
英文摘要	Sorghum-Sudan grass which is an annual forage grass in Gramineae have been bred for biomass promo-tion. The recombinant inbred line (RIL) populations were derived from the F_(2:3) genetic mapping population of Sorghum 314A*zongke Sudan grass.The breeding selection based on agronomic characters and DNA molecular marker statistical analysis was carried among the progenies of the RIL populations, and 9 recombinant breeding progenies were determined as heterobeltiosis with high yield. According to DNA diversity analysis of simple sequence of repeats(SSR) marker, the genetic varieties were abundant among the families, and the recombinant breeds of high yield were distributed among the different RIL populations. 2 family lines, which have similar agronomic characters and yield, and whose genetic distance nearly equal to zero,showed difference on arid tolerance.4 breeding lines were selected on agronomic characters and re-sistance in the field trials,and 2 breed lines were qualified for the regional testing.
中文关键词	高丹草 ; 重组自交系 ; 遗传变异 ; 种质创新
英文关键词	Sorghum-sudan grass Recombinant inbred line Genetic variety Creation of germplasm
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY
WOS研究方向	Agriculture
CSCD记录号	CSCD:3762869
来源机构	内蒙古农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223837
作者单位	1.内蒙古农业大学农学院, 呼和浩特, 内蒙古 010019, 中国; 2.内蒙古农业大学生态环境学院, 呼和浩特, 内蒙古 010019, 中国; 3.呼和浩特市职业学院,生物化学工程学院, 呼和浩特, 内蒙古 010051, 中国; 4.内蒙古鄂尔多斯市农业科学研究所, 鄂尔多斯, 内蒙古 017000, 中国
推荐引用方式 GB/T 7714	逯晓萍,云锦凤,张雅慧,等. 高丹草重组自交系群体的遗传变异与高产种质的创新[J]. 内蒙古农业大学,2009,24(5):90-95.
APA	逯晓萍,云锦凤,张雅慧,薛春雷,&陈强.(2009).高丹草重组自交系群体的遗传变异与高产种质的创新.,24(5),90-95.
MLA	逯晓萍,et al."高丹草重组自交系群体的遗传变异与高产种质的创新".24.5(2009):90-95.