Date of Award

2017

Publisher

North Dakota State University

Document Type

Thesis

Degree Awarded

Master of Science (MS)

Department

Plant Sciences

College

Agriculture, Food Systems, and Natural Resources

Faculty Advisor

Osorno, Juan M.

Description

Common bean is the main source of protein, fiber, and iron for Guatemalan's poorest households; however, bean rust can cause up to 100% yield losses. There is limited information about bean rust in Guatemala, especially at mid-altitude highlands. During 2015, 23 bean rust samples were collected in the Western Guatemalan Highlands and 17 isolates where characterized, as a result, races 63-1 and 31-1 were identified. Those were used to evaluate rust resistance by using 372 Guatemalan climbing beans. In total, 82% of accessions were resistant to race 63-1, 86% to race 31-1, and 90% to race 20-3. Based on GWAS results (78,754 SNPs) the Pv02 (38.13 Mb-38.22Mb) and Pv04 (379 kb) regions were associated with resistance to race 20-3. The Pv10 (10.71-10.68 Mb and 11.09 Mb) and Pv04 (1.42 MB) regions control resistance to race 63-1. And, the Pv04 (39.28 Mb) and Pv02 (35.92 Mb) control resistance to race 31-1.

Rights

NDSU policy 190.6.2

Rights Link

https://www.ndsu.edu/fileadmin/policy/190.pdf

Handle Identifier

https://hdl.handle.net/10365/28701

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