Open AccessVariable patterns of chromosome synapsis at pachytene in Hordeum vulgare × H. bulbosum hybrids and their parents
Author(s) -
ZHANG LIANGTAO,
MURRAY BRIAN G.,
PICKERING RICHARD A.
Publication year - 2002
Publication title -
hereditas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 50
eISSN - 1601-5223
pISSN - 0018-0661
DOI - 10.1034/j.1601-5223.2002.01549.x
Subject(s) - synapsis , synaptonemal complex , biology , hybrid , recombination , hordeum vulgare , chromosome , chromosome pairing , genetics , botany , poaceae , gene
Synaptonemal complexes (SC) have been analysed in barley ( Hordeum vulgare ), H. bulbosum and two F 1 hybrids between them. These hybrids show different recombination frequencies and at pachytene show significant differences in the total length of SC formed and in the extent of synapsis. Higher recombination frequency in the hybrids was correlated with a greater total SC length. Differences in SC length were also observed between the parental species with H. bulbosum having a greater SC length than H. vulgare . However, species and hybrid can have similar SC lengths but clearly different recombination frequencies and, therefore, the relationship between SC length and recombination is not clear‐cut.