Quantitative Trait Loci Analysis of White Mold Avoidance in Pinto Bean

Hoyos‐Villegas, Valerio; Mkwaila, Wezi; Cregan, Perry B.; Kelly, James D.

doi:10.2135/cropsci2015.02.0106

Cited by 26 publications

(35 citation statements)

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“…The peak for SW8.1 AN,SA was at 10.6 Mb, which overlapped with a previously reported seed weight QTL SW8.1 AN located between SNP markers ss715648693 (10.0 Mb) and ss715650376 (11.8 Mb) (Hoyos-Villegas et al, 2015). The peak for SW8.1 AN,SA was at 10.6 Mb, which overlapped with a previously reported seed weight QTL SW8.1 AN located between SNP markers ss715648693 (10.0 Mb) and ss715650376 (11.8 Mb) (Hoyos-Villegas et al, 2015).…”

Section: Discussionsupporting

confidence: 82%

QTL Mapping of Resistance to Bean Weevil in Common Bean

et al. 2018

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The common bean weevil (Acanthoscelides obtectus [Say]) is an important postharvest pest of common bean (Phaseolus vulgaris L.) seed. To expand the current knowledge of resistance to A. obtectus, a quantitative trait loci (QTL) analysis was conducted using a common bean population of 210 F4:5 recombinant inbred lines derived from a cross of Solwezi, a susceptible bean landrace from Zambia, with breeding line AO‐1012‐29‐3‐3A that possesses resistance to A. obtectus. This population was genotyped with 5398 single nucleotide polymorphism (SNP) markers, and evaluated for resistance to A. obtectus and seed weight. Three QTL for resistance to A. obtectus were identified on chromosomes Pv04 and on Pv06. One of the QTL on Pv04, named as AO4.1SA, was previously reported as the arcelin, phytohemagglutinin and α‐amylase, (APA) resistance locus. The other two QTL for resistance to A. obtectus are new. In addition, four QTL for seed weight were identified on Pv04 (SW4.1SA), Pv07 (SW7.1SA), Pv08 (SW8.1AN,SA), and Pv09 (SW9.4SA). The AO4.1SA and SW4.1SA QTL for A. obtectus resistance and seed weight, respectively, co‐localized on Pv04. Once markers linked to the identified QTL for resistance are validated, they could potentially be used in marker‐assisted breeding to accelerate development of common bean cultivars with resistance to A. obtectus.

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Section: Discussionsupporting

confidence: 82%

QTL Mapping of Resistance to Bean Weevil in Common Bean

et al. 2018

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“…1, Supplemental Fig. The map approaches the total length (1200 cM) previously determined by Freyre et al (1998), 1499 cM in the pinto bean population (Hoyos-Villegas et al, 2015), and 1601 cM in the G2333 ´ g19839 population (Ramaekers et al, 2013). The map approaches the total length (1200 cM) previously determined by Freyre et al (1998), 1499 cM in the pinto bean population (Hoyos-Villegas et al, 2015), and 1601 cM in the G2333 ´ g19839 population (Ramaekers et al, 2013).…”

Section: Qtl Analysismentioning

confidence: 51%

QTL Analysis of Symbiotic Nitrogen Fixation in a Black Bean Population

et al. 2017

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L egumes in symbiosis with soil rhizobia are reported to fix 20 to 22 million Mg of nitrogen (N) each year in agricultural production systems (Herridge et al., 2008). Large differences exist in the proportion of atmospheric N 2 fixed by grain legume crops, and common (dry) bean (Phaseolus vulgaris L.) is among the lowest in symbiotic N fixation (SNF). For example, 75% of the total N in a faba bean (Vicia faba L.) plant was derived through SNF; 62 to 94% of N in soybean [Glycine max (L.) Merr.], pea (Pisum sativum L.), and lentil (Lens culinaris Medikus); 54 to 58% of N in cowpea [Vigna ungiculata (L.) Walp.], chickpea (Cicer arietanum L.), and pigeon pea [Cajanus cajan (L.) Millsp.]; and 39% of N in common bean (Dwivedi et al., 2015). The percentage of nitrogen derived from the atmosphere (Ndfa) fixed by dry bean is also quite variable depending on genotype and environmental conditions. Using the 15 N natural abundance method, Farid et al., (2016) reported an average 28% Ndfa in low-N environments. Pereira et al. (1989) also reported an average Ndfa of 21.6%, but cultivars ranged from 5.7% for the navy bean 'Sanilac' to 31.6% for the black bean landrace 'Puebla 152'. A weak relationship ABSTRACT Dry bean (Phaseolus vulgaris L.) acquires nitrogen (N) from the atmosphere through symbiotic N fixation (SNF) but is considered a poor N fixer. Diversity for SNF within dry bean germplasm is recognized, and regions of the genome associated with SNF traits have recently been identified. In the current study a mapping population of 122 recombinant inbred lines (rILs), derived from the cross of two black bean cultivars ('puebla 152' and 'Zorro') contrasting in SNF traits, was grown in the field in East Lansing, MI, and Isabela, puerto rico, and in the greenhouse under N-free conditions to evaluate for yield, nodule development, biomass growth, agronomic traits, and N fixation. The rIL population was also genotyped with single-nucleotide polymorphism (SNp) markers developed through the BeanCAp to construct a genetic map spanning 972 cM and containing 430 SNps. A total of 17 unique QTL associated with SNF traits were identified with most of them located in three large clusters on pv01 (4), pv06 (6), and pv08 (6). Many of the QTL associated with %N derived from atmosphere, N harvest index, and %N in biomass were also associated with candidate genes expressed in the nodules and roots. The majority of QTL associated with genes expressed in the root or nodule were derived from puebla 152, while QTL associated with genes with enhanced expression in stems and pods were associated with Zorro. The QTL described should serve as potential targets for improvement of SNF characteristics in commercial dry bean genotypes adapted to temperate zones.

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“…In contrast, genotypes with ancestry in the Durango race are mainly represented by medium‐seeded materials with a Type III growth habit, whereas the admixed materials exhibit a Type II growth habit. The admixed materials from North America result from breeding efforts to introduce the Type II habit from Mesoamerica into the traditional decumbent Type III Durango genotypes to improve plant architecture for disease avoidance and permit direct harvest (Kelly, 2001; Hoyos‐Villegas et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

Genome‐wide Association Analysis for Drought Tolerance and Associated Traits in Common Bean

2017

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A genome-wide association study explored the genetic basis of variation for drought tolerance and related traits in a Middle American diversity panel comprising 96 common bean (Phaseolus vulgaris L.) genotypes. The panel was grown under irrigated and rainfed conditions and single nucleotide polymorphism (SNP) data were used to explore the genetic diversity and ancestry of the panel. Varying levels of admixtures and distinctly divergent individuals were observed. Estimations of genome-wide heterozygosity revealed that, on average, greater diversity is present in individuals with Mesoamerica (3.8%) ancestry, followed by admixed individuals (2.3%). The race Durango had the lowest level of heterozygosity (1.4%). We report 27 significant marker-trait associations based on best linear unbiased predictors. These associations include seven markers for shoot biomass at harvest under irrigation and five markers under rainfed conditions on P. vulgaris (Pv) chromosome Pv11, two markers for shoot biomass at flowering under irrigation on Pv02 and Pv08, two markers for seed size under irrigated and rainfed conditions on Pv09, seven markers for lodging score under irrigation on Pv02 and Pv07, one marker for leaf elongation rate on Pv03 and one for wilting score on Pv11. Positional candidate genes, including Phvul.011G102700 on Pv11, associated with wilting, were identified. The SNP ss715639327 marker was located in the exon region of the PvSIP1;3 gene, which codes for an aquaporin associated with water movement in beans. Significant quantitative trait loci identified in this study could be used in marker-assisted breeding to accelerate genetic improvement of drought tolerance in common bean.

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Quantitative Trait Loci Analysis of White Mold Avoidance in Pinto Bean

Cited by 26 publications

References 50 publications

QTL Mapping of Resistance to Bean Weevil in Common Bean

QTL Mapping of Resistance to Bean Weevil in Common Bean

QTL Analysis of Symbiotic Nitrogen Fixation in a Black Bean Population

Genome‐wide Association Analysis for Drought Tolerance and Associated Traits in Common Bean

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