ASSOCIATION MAPPING OF GENE REGIONS FOR DROUGHT TOLERANCE AND AGRONOMIC TRAITS IN SORGHUM

Genetic improvement of sorghum (Sorghum bicolor (L.) Moench) for drought tolerance and grain yield is challenging because of the complex nature of these traits. To make this process more tractable, studies were conducted to investigate the genetic architecture of these traits by employing a novel multi-parent advanced generation intercross (MAGIC) population. The population was formed from 19 founder lines through ten generations of random mating, aided by genetic male sterility (GMS) system. This was followed by seven cycles of self-pollination through single seed descent (SSD) to form 1000 MAGIC lines. Two hundred of these were genotyped using a high throughput genotyping-by-sequencing (GBS) platform.

Name thesis:degree_name

Doctor of Philosophy (PhD)

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Agronomy

Year

2016

Author dc:creator

• Ongom, Patrick Obia

Contributors dc:contributor

• Gebisa Ejeta
• Clifford F Weil
• Rebecca W Doerge
• Jeffrey J Volenec

• Candidate genes
• Drought tolerance
• Genome-wide assiciation study (GWAS)
• G x E analysis
• Multi-parent advanced generation intercross (MAGIC)
• Sorghum (Sorghum bicolor (L.) Moench)

Repository record dc:identifier

https://docs.lib.purdue.edu/open_access_dissertations/1473

OAI identifier oai:identifier

oai:docs.lib.purdue.edu:open_access_dissertations-2689