The Aegilops ventricosa 2N^vS segment in bread wheat: cytology, genomics and breeding.

ABSTRACT:

Key message

The first cytological characterization of the 2N^vS segment in hexaploid wheat; complete de novo assembly and annotation of 2N^vS segment; 2N^vS frequency is increasing 2N^vS and is associated with higher yield. The Aegilops ventricosa 2N^vS translocation segment has been utilized in breeding disease-resistant wheat crops since the early 1990s. This segment is known to possess several important resistance genes against multiple wheat diseases including root knot nematode, stripe rust, leaf rust and stem rust. More recently, this segment has been associated with resistance to wheat blast, an emerging and devastating wheat disease in South America and Asia. To date, full characterization of the segment including its size,

SUBMITTER: Gao L 

PROVIDER: S-EPMC7843486 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature