Skip to main content
ARS Home » Plains Area » Fargo, North Dakota » Edward T. Schafer Agricultural Research Center » Sunflower and Plant Biology Research » Research » Research Project #438988

Research Project: Genetic Marker Development for Hull Hardness and Oil Content in Sunflower

Location: Sunflower and Plant Biology Research

Project Number: 3060-21000-043-031-S
Project Type: Non-Assistance Cooperative Agreement

Start Date: Sep 1, 2020
End Date: Aug 31, 2023

Objective:
Objective 1: Whole genome resequencing of a mapping population segregating for hull hardness, hull thickness, and oil content. Objective 2: Measurement of hull hardness independent of hull thickness in the mapping population, and QTL mapping of the trait.

Approach:
To better understand hull thickness, its correlation with insect resistance and oil content, and enhance it for breeders and producers, we propose two objectives. The first is to resequence a mapping population of sunflower that is segregating for hull hardness, hull thickness, and oil content. Tissue will be provided by USDA-ARS in Fargo, for extraction and skim sequencing at CU or an external service lab. Variant calling and quality control will be conducted. The second objective is for a summer student to study the mapping population in the field, collect seed samples as the develop in the plant, and subject them to hull thickness and hull strength measurements via a penetrometer. These data and oil content will then be combined with the variant calls from the first objective to conduct QTL mapping of the traits for subsequent publication.