A linkage map of Aegilops biuncialis reveals significant genomic rearrangements compared to bread wheat.

ABSTRACT: Goatgrasses with U- and M-genomes are important sources of new alleles for wheat breeding to maintain yield and quality under extreme conditions. However, the introgression of beneficial traits from wild Aegilops species into wheat has been limited by poor knowledge of their genomes and scarcity of molecular tools. Here, we present the first linkage map of allotetraploid Aegilops biuncialis Vis., developed using 224 F₂ individuals derived from a cross between MvGB382 and MvGB642 accessions. The map comprises 5663 DArTseq markers assigned to 15 linkage groups corresponding to 13 chromosomes. Chromosome 1M^b could not be constructed due to a lack of recombination caused by rearrangements in the MvGB382 accession. The genetic map spans 2518 cM with an average marker densi

SUBMITTER: Lampar A 

PROVIDER: S-EPMC11863542 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature