%0 Journal Article
%A DOU Quan-Wen
%A LIU Bo
%A LIU Rui-Juan
%A LU Xing-Wang
%T Cytogenetic Identification on Interspecific Hybrids in Genus <i>Elymus</i> L. of Qinghai Plateau
%D 2019
%R 10.7525/j.issn.1673-5102.2019.06.006
%J Bulletin of Botanical Research
%P 846-852
%V 39
%N 6
%X Cytogenetic identification was conducted on interspecific hybrids in genus <i>Elymus</i> L. spontaneously occurred in Qinghai plateau by using a technique of Fluorescence in situ hybridization(FISH) and Genomic hybridization(GISH). Combined with information of the morphology and ecology distribution of the sympatric species, the hybrids were identified as six types:Ⅰ is a hybrid between <i>Elymus nutans</i> Griseb. and a <i>Roegneria</i> C.Koch species with a chromosome number of 35 and genome constitution of StStYYH; Ⅱ is a hybrid between <i>E.nutans</i> and <i>E.dahuricus</i> Turcz. ex Griseb. with a chromosome number of 42 and genome constitution of StStYYHH. Ⅲ is a hybrid between <i>E.sibiricus</i> L. and <i>E.dahuricus</i> with a chromosome number of 35 and genome constitution of StStHHY; Ⅳ is a hybrid between <i>E.nutans</i> and <i>Kengilia hirsuta</i> Keng with a chromosome number of 42 and genome constitution of StStYYHP; Ⅴ is a hybrid between <i>E.nutans</i> and <i>K.grandiglumis</i> Keng with a chromosome number of 42 and genome constitution of StStYYHP; Ⅵ is a hybrid between <i>K.hirsuta</i> and <i>Leymus secalinus</i>(Georgi) Tzvel. with a chromosome number of 35 and genome constitution of StYPNsXm. The results provide the basic evidence for further studying the introgression hybridizations in <i>Elymus</i> species. The identified hybrids are also valuable germplasms for grass forage improvement in this region.
%U https://bbr.nefu.edu.cn/EN/10.7525/j.issn.1673-5102.2019.06.006