文献类型： 外文期刊

作者： Jenkins, Johnie N. ¹ ; McCarty, Jack C., Jr. ¹ ; Deng, Dewayne ¹ ; Geng, Lige ² ; Hayes, R. W. ¹ ; Jones, D. C. ³ ; Ma ¹ ;

作者机构： 1.USDA ARS, POB 5367, Mississippi State, MS 39762 USA

2.Hebei Acad Agr & Forestry Sci, Inst Cereal & Oil Crops, Crop Germplasm Preservat Identificat & Intro, Crop Genet & Breeding Lab Hebei Prov, 162 Hengshan St, Shijiazhuang 050035, Hebei, Peoples R China

3.Cotton Inc, 6399 Weston Pkwy, Cary, NC USA

4.Natl Acad Sci, Genet Resources Inst Azerbaijan, Azadliq Ave 155, AZ-1106 Baku, Azerbaijan

关键词： Chromosome substitution lines; Cotton; Gossypium barbadense x Gossypium hirsutum interspecific cross; Interspecific introgression; Upland cotton

期刊名称：EUPHYTICA （ 影响因子：1.895； 五年影响因子：2.181 ）

ISSN： 0014-2336

年卷期： 2018 年 214 卷 7 期

页码：

收录情况： SCI

摘要： Gossypium barbadense L. cotton has significantly better fiber quality than Upland cotton (G. hirsutum L.); however, yield and environmental adaptation of G. barbadense is not as wide as Upland. Most cotton in the world is planted to Upland cultivars. Many attempts have been made, over a considerable number of years, to introgress fiber quality alleles from G. barbadense into Upland. However, introgression barriers, primarily in the form of interspecific incompatibility, have limited these traditional approaches. The use of chromosome substitution lines (CSL) as a bridge should provide a more efficient way to introgress alleles from G. barbadense into Upland. We crossed 18 G. barbadense CSL to three cultivars and developed a random mated population. After five cycles of random mating followed by one generation of self-pollination to increase the seed supply, we grew the random mated population and used 139 G. barbadense chromosome specific SSR markers to assess a random sample of 96 plants for introgression. We recovered 121 of 139 marker loci among the 96 plants. The distribution of the G. barbadense alleles ranged from 10 to 28 alleles in each plant. Among the 96 plants we found individual plants with marker loci from 6 to 14 chromosomes or chromosome arms. Identity by descent showed little relatedness among plants and no population structure was indicated by a heat map. Using CSL we were able to develop a mostly Upland random mated population with considerable introgression of G. barbadense alleles which should be useful for breeding.