Uncovering homeologous relationships between tetraploid Agropyron cristatum and bread wheat genomes using COS markers.

ABSTRACT:

Key message

Using COS markers, the study reveals homeologous relationships between tetraploid Agropyron cristatum and bread wheat to support alien introgression breeding of wheat. Crested wheatgrass (Agropyron cristatum L. Gaertn.) is a wild relative of wheat that possesses many genes that are potentially useful in wheat improvement. The species comprises a complex of diploid, tetraploid and hexaploid forms. In this study, wheat-A. cristatum chromosome, telosome and translocation lines were used to characterize syntenic relationships between tetraploid A. cristatum and bread wheat. Prior to mapping COS markers, the cytogenetic stock lines were characterized for fertility and by FISH and GISH for karyotype stability. Out of 328 COS markers selected for the study, 279 consistently am

SUBMITTER: Said M 

PROVIDER: S-EPMC6763527 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature