Population Structure and Genetic Diversity of Common Bean Accessions from Brazil

Valentini, Giseli; Gonçalves‐Vidigal, Maria Celeste; Elias, Júlio César Ferreira; Moiana, Leonel Domingos; Mindo, Noimilto

doi:10.1007/s11105-018-1129-4

Cited by 18 publications

(15 citation statements)

References 34 publications

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“…According to Colombari Filho et al (2010), the characterization of diversity may be more useful when evaluated in combination with genotype and phenotypic information of interest. Even though there are several studies on the genetic (Corrêa et al 2001;Mahuku et al 2011;Miller et al 2018;Nay et al 2019b) and phenotypic (Sannazzaro et al 2003;Reis-Prado et al 2006;Chataika et al 2010;Pereira et al 2019a, b) characterization of ALS resistance, as well as evaluation of the general genetic diversity of common bean accessions (Campa et al 2018;Raatz et al 2019;Valentini et al 2018;Gioia et al 2019), this is the first study involving phenotypic resistance evaluation in combination with genetic diversity of loci associated with ALS resistance.…”

Section: Discussionmentioning

confidence: 99%

“…Brazil is the largest consumer and the third largest producer with estimated production of about 2360 thousand tons (CONAB 2019). Brazil may be considered a secondary center of common bean diversification (Valentini et al 2018). However, the major constraint to bean production is the occurrence of several diseases caused by fungi, viruses, bacteria, and nematodes (Schwartz and Pastor-Corrales 1989;Schwartz et al 2005).…”

Section: Introductionmentioning

confidence: 99%

“…Common bean breeding programs usually focus exclusively on breeding lines and/or cultivars, using a narrowed-based germplasm which may be a limiting factor for genetic progress (Valentini et al 2018). Success in developing new cultivars with gain in genetic diversity is highly dependent on the choice of divergent parents to compose the crosses in a breeding program (Perseguini et al 2011).…”

Section: Introductionmentioning

confidence: 99%

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Genetic diversity of Pseudocercospora griseola resistance loci in common beans

Almeida

Arruda

Paulino

et al. 2020

Trop. plant pathol.

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Common bean (Phaseolus vulgaris L.) is one of the most widely grown legumes in the world. Although the crop has high yield potential, average yields in Brazil are low due to several diseases. Angular leaf spot (ALS), caused by Pseudocercospora griseola, is among the most important diseases. A set of 81 accessions from the Instituto Agronômico (IAC, Campinas, SP) germplasm bank were evaluated for ALS resistance and genotyped by 12 microsatellites previously associated with ALS QTL resistance. Allele frequencies, number of alleles per locus, expected heterozygosity (He), and Shannon's Information Index (I) were calculated. The average Ho was 0.12, and the He was 0.54. The STRUCTURE analysis and UPGMA clustering based on Nei's genetic distance indicated a moderate degree of genetic diversity, with 4 and 5 main groups, respectively. Evaluation of the severity of ALS showed that 17% of the accessions had resistance. Cultivars were recommended for breeding crosses aimed at gaining in genetic diversity and resistance to ALS.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Genetic diversity of Pseudocercospora griseola resistance loci in common beans

Almeida

Arruda

Paulino

et al. 2020

Trop. plant pathol.

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“…Because PIC ranges from 0.25 to 0.78 (mean: 0.50), Cannabis germplasm resources are considered to have a high degree of polymorphism. The values are lower than those of the Kenyan common bean ( Phaseolus vulgaris L.) ( Valentini et al, 2018 ), Indian garlic ( Allium sativum L.) ( Kumar et al, 2019 ), and ramie ( Boehmeria nivea L.) ( Feng et al, 2018 ) and higher than those of tea plants ( Camellia sinensis L.) ( Ori et al, 2017 ), corn ( Zea mays L.) ( Zhang et al, 2017 ), and sesame ( Sesamum indicum L.) ( Yue et al, 2012 ). In addition, the PIC values of the domesticated, wild, and Chinese and foreign accessions range from 0.25 to 0.50, indicating that the germplasm resources in these regions have moderate polymorphism, and the results are consistent among the nine populations.…”

Section: Discussionmentioning

confidence: 91%

“…An analysis of genetic diversity of 50 populations of confectionery sunflower in Iran reveals that these can be subdivided into two subpopulations ( Jannatdoust et al, 2016 ). Further, a population structure analysis of 109 Brazilian common bean accessions shows that these accessions can be divided into two distinct subpopulations ( Valentini et al, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Genetic Diversity and Population Structure of Cannabis Based on the Genome-Wide Development of Simple Sequence Repeat Markers

et al. 2020

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Cannabis has been used as a source of nutrition, medicine, and fiber. However, lack of genomic simple sequence repeat (SSR) markers had limited the genetic research on Cannabis species. In the present study, 92,409 motifs were identified, and 63,707 complementary SSR primer pairs were developed. The most abundant SSR motifs had six repeat units (36.60%). The most abundant type of motif was dinucleotides (70.90%), followed by trinucleotides, tetranucleotides, and pentanucleotides. We randomly selected 80 pairs of genomic SSR markers, of which 69 (86.25%) were amplified successfully; 59 (73.75%) of these were polymorphic. Genetic diversity and population structure were estimated using the 59 (72 loci) validated polymorphic SSRs and three phenotypic markers. Three hundred ten alleles were identified, and the major allele frequency ranged from 0.26 to 0.85 (average: 0.56), Nei’s genetic diversity ranged from 0.28 to 0.82 (average: 0.56), and the expected heterozygosity ranged from 0.28 to 0.81 (average: 0.56). The polymorphism information content ranged from 0.25 to 0.79 (average: 0.50), the observed number of alleles ranged from 2 to 8 (average: 4.13), and the effective number of alleles ranged from 0.28 to 0.81 (average: 0.5). The Cannabis population did not show mutation-drift equilibrium following analysis via the infinite allele model. A cluster analysis was performed using the unweighted pair group method using arithmetic means based on genetic distances. Population structure analysis was used to divide the germplasms into two subgroups. These results provide guidance for the molecular breeding and further investigation of Cannabi s.

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Registration of UPR‐Mp‐34 and UPR‐Mp‐42 common bean germplasm with enhanced resistance to ashy stem blight

Viteri

Linares‐Ramírez

Miranda

et al. 2023

J of Plant Registrations

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Common bean (Phaseolus vulgaris L.) breeding lines (BL) UPR‐Mp‐34 (Reg no. CV‐313, PI 701379) and UPR‐Mp‐42 (Reg no. CV‐314, PI 701380) were developed at the University of Puerto Rico. UPR‐Mp‐34 was derived from A 195/‘PC 50’//SEA 5, and UPR‐Mp‐42 was developed from BAT 477/NY6020‐4//PRA154 common bean populations. Both BL have intermediate levels of resistance (mean scores, 4–6) to two inoculations of the PRI21 Macrophomina phaseolina (Tassi) Goidanich isolate (the causal agent of ashy stem blight) compared with BAT 477, SEA 5, TARS‐MST1, and XAN 176, which mostly had susceptible scores (7–9) in the greenhouse and field evaluations. UPR‐Mp‐34 has an indeterminate growth habit Type III, has a cream seed (average weight, 26.5 g per 100 seeds), initiates flowering at 32 d after planting, and reaches harvesting maturity at 86 d. Mean seed yield was 730 and 340 kg ha−1 in Isabela and Lajas, respectively. UPR‐Mp‐42 possesses black seed (23.8 g per 100 seeds), has a determinate growth habit Type I, initiates flowering at 30 d, and matures at 76 d. Mean seed yield was 750 kg ha−1 in both locations. The intermediate levels of ashy stem blight resistance from both BL could be combined with other sources of resistance and introgressed into common bean cultivars from different market classes.

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Population Structure and Genetic Diversity of Common Bean Accessions from Brazil

Cited by 18 publications

References 34 publications

Genetic diversity of Pseudocercospora griseola resistance loci in common beans

Genetic diversity of Pseudocercospora griseola resistance loci in common beans

Genetic Diversity and Population Structure of Cannabis Based on the Genome-Wide Development of Simple Sequence Repeat Markers

Registration of UPR‐Mp‐34 and UPR‐Mp‐42 common bean germplasm with enhanced resistance to ashy stem blight

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