文献类型：期刊文献

英文题名：Genetic diversity among a founder parent and widely grown wheat cultivars derived from the same origin based on morphological traits and microsatellite markers

作者：Li, X. J.[1,2];Xu, X.[1,3];Yang, X. M.[1];Li, X. Q.[1];Liu, W. H.[1];Gao, A. N.[1];Li, L. H.[1]

第一作者：Li, X. J.

通讯作者：Li, LH[1]

机构：[1]Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing 100081, Peoples R China;[2]Henan Inst Sci & Technol, Sch Life Sci & Technol, Xinxiang 453003, Peoples R China;[3]Xinxiang Univ, Dept Life Sci & Technol, Xinxiang 453003, Peoples R China

第一机构：Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing 100081, Peoples R China

通讯机构：[1]corresponding author), Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing 100081, Peoples R China.

年份：2012

卷号：63

期号：4

起止页码：303-310

外文期刊名：CROP & PASTURE SCIENCE

收录：;Scopus(收录号：2-s2.0-84863003968);WOS:【SCI-EXPANDED(收录号:WOS:000305505300001)】；

基金：The financial supports provided by the Science and Technology of China (project number 2006CB101700) are acknowledged.

语种：英文

外文关键词：agronomy; genetic diversity; microsatellite; wheat

摘要：Founder parents have contributed significantly to the improvement of wheat. Beijing 8 has been used as a founder parent in developing many outstanding improved cultivars in China. The widely grown cultivars Beijing 8 and 6 additional derivatives both derived from the cross 'Bima 4 x Early Premium' in China, were characterised using seven morphological traits and 537 microsatellite markers. Phenotypic comparisons revealed that Beijing 8 was similar for certain characteristics to the widely grown cultivars Shijiazhuang 54 and Jinan 2, hinting that acceptable performance for yield components may be the basis for Beijing 8 serving as a founder parent. Simple sequence repeat analysis indicated that Bima 4 contributed more genome information to the derivatives than Early Premium. Fifty-nine unique simple sequence repeat alleles, present in Beijing 8 and absent in other cultivars, were observed. Nearly all loci were in close proximity to the positions of known genes conferring important traits. Furthermore, pedigree tracking found that the frequencies of alleles unique to Beijing 8 varied from 0 to 0.96 in its 51 descendants, suggesting that some of them underwent rigorous selection during breeding.