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ARS Home » Pacific West Area » Logan, Utah » Forage and Range Research » Research » Publications at this Location » Publication #348088

Research Project: Develop Improved Plant Genetic Resources to Enhance Pasture and Rangeland Productivity in the Semiarid Regions of the Western U.S.

Location: Forage and Range Research

Title: Late flowering candidate genes in orchardgrass (Dactylis glomerata)

Author
item Bushman, Shaun
item ZHAO, XINXIN - Sichuan Agricultural University
item Robins, Joseph
item Robbins, Matthew
item Larson, Steven
item ZHANG, XINGQUAN - Sichuan Agricultural University

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 1/13/2018
Publication Date: N/A
Citation: N/A

Interpretive Summary:

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.