A rapid antibody-based test for Sec-2, a marker for the short arm of chromosome 2 of rye (2RS).
A simple monoclonal antibody-based screening test has been developed for the presence of translocations of the short arm of chromosome 2 of rye (2RS) with wheat chromosome 2B. 2RS encodes a set of about three polypeptides known as Mr 75 000 gamma-secalins. Use of the antibody test for these secalins enabled screening of several hundred seeds per day. The antibody could readily distinguish 2BL-2RS translocations and 2R substitutions from 1BL-1RS translocations or nontranslocation wheats. Use of the antibody in analysis of segregating progeny for Sec-2 in several wheat backgrounds was successful. Results with a selection of the seed population were checked using protein gel electrophoresis, with 100% correct confirmation. Key words : rye, wheat, seed proteins, translocation, diagnostic test.
Skerritt
J H
JH
Gupta
R B
RB
Andrews
J L
JL
Stoddard
F L
FL
Howes
N K
NK