Genotyping-by-sequencing uncovers a Thinopyrum 4StS·1J^vsS Robertsonian translocation linked to multiple stress tolerances in bread wheat.

ABSTRACT:

Keymessage

GBS read coverage analysis identified a Robertsonian chromosome from two Thinopyrum subgenomes in wheat, conferring leaf and stripe rust resistance, drought tolerance, and maintaining yield stability. Agropyron glael (GLAEL), a Thinopyrum intermedium × Th. ponticum hybrid, serves as a valuable genetic resource for wheat improvement. Despite its potential, limited knowledge of its chromosome structure and homoeologous relationships with hexaploid wheat (Triticum aestivum) has restricted the full exploitation of GLAEL's genetic diversity in breeding programs. Here, we present the development of a 44-chromosome wheat/GLAEL addition line (GLA7). Multicolor genomic in situ hybridization identified one chromosome arm from the St subgenome of Th. intermedium, while the other ar

SUBMITTER: Kruppa K 

PROVIDER: S-EPMC11671438 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature