QTL mapping for pod quality and yield traits in snap bean ( Phaseolus vulgaris L.).

Autor: Njau SN; Department of Water and Agricultural Resource Management, University of Embu, Embu, Kenya.; Department of Plant Sciences, University of California, Davis, Davis, CA, United States., Parker TA; Department of Plant Sciences, University of California, Davis, Davis, CA, United States., Duitama J; Department of Systems and Computing Engineering, University de los Andes, Bogotá, Colombia., Gepts P; Department of Plant Sciences, University of California, Davis, Davis, CA, United States., Arunga EE; Department of Water and Agricultural Resource Management, University of Embu, Embu, Kenya.
Jazyk: angličtina
Zdroj: Frontiers in plant science [Front Plant Sci] 2024 Aug 12; Vol. 15, pp. 1422957. Date of Electronic Publication: 2024 Aug 12 (Print Publication: 2024).
DOI: 10.3389/fpls.2024.1422957
Abstrakt: Pod quality and yield traits in snap bean ( Phaseolus vulgaris L.) influence consumer preferences, crop adoption by farmers, and the ability of the product to be commercially competitive locally and globally. The objective of the study was to identify the quantitative trait loci (QTL) for pod quality and yield traits in a snap × dry bean recombinant inbred line (RIL) population. A total of 184 F 6 RILs derived from a cross between Vanilla (snap bean) and MCM5001 (dry bean) were grown in three field sites in Kenya and one greenhouse environment in Davis, CA, USA. They were genotyped at 5,951 single nucleotide polymorphisms (SNPs), and composite interval mapping was conducted to identify QTL for 16 pod quality and yield traits, including pod wall fiber, pod string, pod size, and harvest metrics. A combined total of 44 QTL were identified in field and greenhouse trials. The QTL for pod quality were identified on chromosomes Pv01, Pv02, Pv03, Pv04, Pv06, and Pv07, and for pod yield were identified on Pv08. Co-localization of QTL was observed for pod quality and yield traits. Some identified QTL overlapped with previously mapped QTL for pod quality and yield traits, with several others identified as novel. The identified QTL can be used in future marker-assisted selection in snap bean.
Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. The handling editor AS declared a past co-authorship with the author PG. The author(s) declared that they were an editorial board member of Frontiers, at the time of submission. This had no impact on the peer review process and the final decision.
(Copyright © 2024 Njau, Parker, Duitama, Gepts and Arunga.)
Databáze: MEDLINE
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