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Activity Number: 527 - Contributed Poster Presentations: Section on Statistics in Genomics and Genetics
Type: Contributed
Date/Time: Wednesday, July 31, 2019 : 10:30 AM to 12:20 PM
Sponsor: Section on Statistics in Genomics and Genetics
Abstract #306778
Title: A GWAS Analysis to Identify Genotypes Corresponding to Delayed Senescence in Maize
Author(s): Brandon Lumsden* and Yuan Yang and Christopher McMahan and William C. Bridges Jr.
Companies: Clemson University and Clemson University and Clemson University and Clemson University
Keywords: senescence; photosynthetic activity; genome-wide association study

Delayed (leaf) senescence is a very desirable attribute in maize, as a longer period of photosynthesis results in greater carbon accumulation, and thus higher crop yield. In general, senescence marks the end of photosynthesis and thus this phenotype can be quantified via analytical measurements of photosynthetic activity. The goal of this work is to identify genetic markers that are associated with delayed senescence. To this end, both genetic and phenotypic data were collected on a diverse maize panel consisting of approximately 600 inbred lines. This data was analyzed using techniques standard to genome-wide association studies (GWAS) as well as a few advanced alternatives in an effort to gain insight towards which genes play a significant role in photosynthetic activity and which genotypes correspond to delayed senescence.

Authors who are presenting talks have a * after their name.

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