Morphology and cytology of intergeneric hybrids between hystrix duthiei ssp . longearistata and psathyrostachys huashanica poaceae : triticeae 长芒猬草与华山新麦草属间杂种的形态学和细胞学研究
Dewey ( 1984 ) reported h . patula has sth genomes and according to genome analysis method , included it in elymus . but he only studied the type specie of hystrix - - - - - - h Patula具有sth染色体组,并根据染色体组分析方法,将hystrix放在elymus中,但他仅对hystrix的模式种? ? h
( 3 ) there were distinct genetic differences between h . patula and the other materials used in this study . h . patula was separated as a single group in the upgma dendrograms 表明hpatula与l啊us和psathyffistachys的亲缘关系较远,与其它三份hystrix材料也存在着较大的遗传差异。
( 1997 ) reported elymus coreanus ( h . coreand ) and e . californicus ( h . californicd ) have the same genome constitution of leymus ( nsxm ) , and included them in leymus Coreana )和e californicus ( h californica )具有与赖草属leymus相同的nsxm染色体组,并把这两个物种组合到leymus中,使得hystrix的分类更为复杂。
Until now , the definition of hystrix and its precise taxonomic rank are still under discussion . the main controversial is included the species of hystrix either in hystrix , or regard it as a part of elymus or leymus 关于hystrix属的界限和物种划分一直处在争议中,主要分歧是:将这些物种置于hystrix ,还是作为elymus的一部分以及还是放在leymus中。