Common Bean Genetics, Breeding, and Genomics for Adaptation to Biotic Stress Conditions

Ron, Antonio M. De; Rodiño, A. Paula; Gioia, Tania; Brezeanu, C.; Burzo, I.; Rensburg, B. Janse van; Corrales, Marcial Antonio Pastor; Nay, Michelle M.; Fourie, D.; Nkhata, Wilson; Shimelis, Hussein; Solberg, Svein Øivind; Logozzo, Giuseppina; Marzario, Stefania; Gonçalves‐Vidigal, Maria Celeste; Vaz-Bisneta, Mariana; Valentini, Giseli; Galván, Marta Zulema; Aban, Carla Luciana; Brezeanu, P. Marian

doi:10.1007/978-3-030-91043-3_1

Cited by 2 publications

(1 citation statement)

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“…This history of domestication led to differences in genetic diversity, agronomic, morphological, and phenological traits between these gene pools [ 37 , 60 , 61 ]. The Mesoamerican gene pool is characterized by either small (<25 g 100 seed weight −1 ) or medium (25–40 g 100 seed weight −1 ) seeds [ 62 ], whereas the Andean gene pool is characterized by larger seeds (>40 g 100 seeds weight −1 ) [ 63 ]. In contrast, the common beans from the Mesoamerican gene pool are characterized by possessing greater drought tolerance than Andean beans [ 55 ].…”

Section: Discussionmentioning

confidence: 99%

Meta-QTL Analysis for Yield Components in Common Bean (Phaseolus vulgaris L.)

Arriagada

Arévalo

Cabeza

et al. 2022

Plants

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Common bean is one of the most important legumes produced and consumed worldwide because it is a highly valuable food for the human diet. However, its production is mainly carried out by small farmers, who obtain average grain yields below the potential yield of the species. In this sense, numerous mapping studies have been conducted to identify quantitative trait loci (QTL) associated with yield components in common bean. Meta-QTL (MQTL) analysis is a useful approach to combine data sets and for creating consensus positions for the QTL detected in independent studies. Consequently, the objective of this study was to perform a MQTL analysis to identify the most reliable and stable genomic regions associated with yield-related traits of common bean. A total of 667 QTL associated with yield-related traits reported in 21 different studies were collected. A total of 42 MQTL associated with yield-related traits were identified, in which the average confidence interval (CI) of the MQTL was 3.41 times lower than the CIs of the original QTL. Most of the MQTL (28) identified in this study contain QTL associated with yield and phenological traits; therefore, these MQTL can be useful in common bean breeding programs. Finally, a total of 18 candidate genes were identified and associated with grain yield within these MQTL, with functions related to ubiquitin ligase complex, response to auxin, and translation elongation factor activity.

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