|ZHAO, XINXIN - Sichuan Agricultural University|
|ZHANG, XINGQUAN - Sichuan Agricultural University|
Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 1/13/2018
Publication Date: N/A
Technical Abstract: Orchardgrass breeders routinely must select or maintain certain heading dates to ensure they meet forage producer goals. Selecting for late heading orchardgrass is particularly challenging as seed production inadvertently pushes heterozygous late populations to earlier heading. To provide molecular markers associated with late heading, we conducted an association analysis of 150 orchardgrass genotypes with four candidate genes affecting heading date: CONSTANS, FLOWERING TIME 1, MADS2, and PPD-like. We found polymorphisms associated with heading date and in functional regions of the CONSTANS and MADS2 genes.