Due to the absence of genotypes bearing the CMD1
gene, efforts in this work aimed at identifying accessions bearing the CMD2 gene. SSRY28 was the first codominant
inheritance marker to be mapped next to the CMD2
allele (9 cM) using a mapping population that originated
from the cross between the local variety TMe-3 (resistant)
and the hybrid TMS30555 (susceptible) (Akano et
al., 2002). The TMe-3 variety is the original source of
resistance to CMD, but this study used the TMe-14 variety,
which is considered a duplicate of the TMe-3 source
(Rabbi et al., 2014), whose genotyping results confirmed
the size of the alleles as related to the CMD2 gene for all
of the markers.