J Syst Evol ›› 2009, Vol. 47 ›› Issue (1): 67-86.DOI: 10.1111/j.1759-6831.2009.00004.x

• Research Articles • Previous Articles     Next Articles

Synopsis of Leymus Hochst. (Triticeae: Poaceae)

Chi YEN*1 Jun-Liang YANG 1 Bernard R. BAUM 2   

  1. 1 ( Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, China )
    2 ( Eastern Cereals and Oilseeds Research Centre, Agriculture and Agri-Food Canada, Central Experimental Farm, Ottawa, Ontario, K1A 0C6, Canada ) *Author for correspondence. Address: 675 Cantrill Drive, Apt. 218, Davis. CA 95618-7769, USA; E-mail: chiyen77@hotmail.com; Tel.: 1-530-753-3560.
  • Received:2008-07-01 Published:2009-02-27

Abstract: Leymus is a genus in the Triticeae tribe, Poaceae. The taxa of this genus are allopolyploid species which possess the Ns and Xm genomes. According to cytological, cytogenetic and molecular genetic analyses, some species of Hystrix and Elymus ought to be transferred to this genus. A world revision of the genus Leymus is needed. In this paper we summarize experimental results, provide a key to sections, species and varieties, and list all the taxa we recognize in Leymus with their synonyms. This synopsis is a new taxonomic system to be used for the revision of Leymus.

Key words: genome, Leymus, new taxonomic system, section, species, varieties