Performance of bean (Phaseolus vulgaris L.) genotypes in the second-season under high and low technology management in Parana, Brazil

Brusamarello, Antonio Pedro; Oliveira, Paulo Henrique de; Sebim, Danilo Eduardo; Baretta, Douglas Rodrigo

doi:10.15446/acag.v66n3.55555

Cited by 2 publications

(1 citation statement)

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“…Brazil is the world's largest producer and consumer of common beans (Phaseolus vulgaris), an important nutritional source and socioeconomically signi cant crop (Kotue et al 2018; Embrapa Rice and Beans 2021). This legume is widely cultivated in the country, being produced in three growing seasons and grown by farmers with different technological pro les, at different scales and production systems (Brusamarello et al 2017). In this scenario, numerous challenges limit production potential, one of the main causes being biotic stresses (Basavaraja et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Molecular Characterization of Parental Lines and Validation of Snp Markers for Disease Resistance in Common Bean

Gomes-Messias

Vianello

Monteiro-Júnior

et al. 2021

Preprint

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The implementation of molecular tools that help the early selection of genotypes carrying target alleles increases efficiency and reduces the time and costs of breeding programs. The present study aimed the molecular characterization and validation of SNPs targeting disease resistance alleles for assisted selection. A total of 376 common bean lines with contrasting responses for anthracnose and angular leaf spot resistance were used, as well as 149 F2 plants from the cross between BRS Cometa x SEL 1308 (carrying the Anthracnose resistance gene Co-42). Seven of the ten SNP markers evaluated showed potential for assisted breeding: snpPV0025 (Phg-2), snpPV0027 (Phg-5), snpPV0079 (Phg-5), snpPV0046 (Co-u), snpPV0068 (Co-42), snpPV0070 (Co-42) and snpP8282v3-817 (Co-42). Markers snpPV0070 and snpP8282v3-817 showed high efficiency of selection (99.7 and 99.8%, respectively). These markers exhibit great potential to assist in the selection at different stages of the breeding program and may be readily incorporated into marker-assisted selection.

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Section: Introductionmentioning

confidence: 99%