Thinopyrum ponticum chromatin-integrated wheat genome shows salt-tolerance at germination stage

2Citations
Citations of this article
11Readers
Mendeley users who have this article in their library.

Abstract

A wild wheatgrass, Thinopyrum ponticum (2n = 10x = 70), which exhibits substantially higher levels of salt tolerance than cultivated wheat, was employed to transfer its salt tolerance to common wheat by means of wide hybridization. A highly salt-tolerant wheat line S148 (2n = 42) was obtained from the BC3F2 progenies between Triticum aestivum (2n = 42) and Th. ponticum. In the cross of S148 × salt-sensitive wheat variety Chinese Spring, the BC4F2 seeds at germination stage segregated into a ratio of 3 salt tolerant to 1 salt sensitive, indicating that the salt tolerance was conferred by a dominant gene block. Genomic in situ hybridization analysis revealed that S148 had a single pair of Th. ponticum-T. aestivum translocated chromosomes bearing the salt-tolerance. This is an initial step of molecular breeding for salt-tolerant wheat.

Cite

CITATION STYLE

APA

Yuan, W. Y., & Tomita, M. (2015). Thinopyrum ponticum chromatin-integrated wheat genome shows salt-tolerance at germination stage. International Journal of Molecular Sciences, 16(3), 4512–4517. https://doi.org/10.3390/ijms16034512

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free