Open AccessIntergeneric hybridization between Hordeum and Asiatic Elymus
Author(s) -
LU BAORONG,
BOTHMER ROLAND VON
Publication year - 1990
Publication title -
hereditas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 50
eISSN - 1601-5223
pISSN - 0018-0661
DOI - 10.1111/j.1601-5223.1990.tb00048.x
Subject(s) - biology , elymus , hybrid , meiosis , botany , hordeum , hordeum vulgare , genome , chromosome , genetics , homology (biology) , chromosome pairing , poaceae , gene
Intergeneric hybridizations were performed between four Hordeum and five Asiatic Elymus species, and the embryos were rescued. Meiotic pairing was studied in the parental species and hybrids. The study revealed: i) the allopolyploid nature of the five Asiatic Elymus species; ii) that E. semicostatus (2n=4x=28), E. parviglume (2n=4x=28), and E. pendulinus (2n=4x=28) had no chromosome homology with the Hordeum species; iii) that E. tsukushiensis var. transiens contained a modified H genome from H. hogdanii . thus, its genome symbol should be SSHHYY.