Cytogenetic and systematic analyses of Kengyilia gobicola, K-zhaosuensis and K-batalinii var. nana (Poaceae)

Kengyilia batalinii var. nana J.L. Yang, Yen et Baum, K. gobicola Yen et J. L. Yang, K. zhaosuensis J.L. Yang, Yen et Baum are short-lived perennial gr asses of the family Triticeae distributed throughout the upper and middle m ountain ranges of west China. They were cytogenetically studied with tester s R. kamoji Ohwi (StStHHYY) and K. hirsuta (Keng) J. L. Yang, Yen et Baum ( PPStStYY). Analysis of metaphase I pairing configurations in the F-1 indica te that K. batalinii var. nana, K. gobicola, K. zhaosuensis possess the P, St, and Y genomes, with only minor structural rearrangements. These results showed that the three target taxa are good species in the genus Kengyilia.