Registration of ‘Aztec’ Pinto Bean

Kelly, James D.; Hosfield, G. L.; Varner, G. V.; Uebersax, M. A.; Wassimi, N.

doi:10.2135/cropsci1992.0011183x003200060045x

Cited by 16 publications

(16 citation statements)

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“…A population of 85 F 5:8 recombinant inbred lines (RILs) generated by Miklas et al (2004) from the cross Aztec/ND88-106-04 by single-seed descent method was used. Aztec is a semi-upright pinto bean (Kelly et al, 1992) susceptible to white mold. ND88-106-04 from the cross N85007/ICA Bunsi is an upright navy bean breeding line with partial resistance to white mold derived from ICA Bunsi (Tu and Beversdorf, 1982).…”

Section: Methodsmentioning

confidence: 99%

QTL Analysis of ICA Bunsi‐Derived Resistance to White Mold in a Pinto × Navy Bean Cross

et al. 2007

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Breeding for genetic resistance to white mold [Sclerotinia sclerotiorum (Lib.) de Bary] in dry bean (Phaseolus vulgaris L.) is difficult because of low heritability. To facilitate breeding, researchers have sought to identify QTL underpinning genetic resistance to white mold. We identified two QTL conditioning ICA Bunsi‐derived resistance to white mold in a pinto × navy bean (Aztec/ND88–106–04) recombinant inbred line (85 RILs) population. ND88–106–04 is a navy breeding line with resistance to white mold derived from ICA Bunsi navy. Aztec pinto is susceptible. The QTL were located to linkage groups B2 and B3 of the core map. The B2 QTL expressed in three of four field environments explaining 24.7, 9.0, and 8.7% of the phenotypic variation for disease severity score. The B3 QTL expressed in two of four environments, explaining 15.7 and 5.3% of the phenotypic variation. The B2 QTL was identified previously in ICA Bunsi × navy and ICA Bunsi × black bean RIL populations. The resistance conferred by the B2 QTL has a physiological basis due to association with stay green stem trait and lack of association with disease avoidance traits. The B3 QTL, undetected in previous studies, was associated with disease avoidance traits (canopy porosity, plant height), stay green stem trait, and maturity. The B2 QTL with stable expression in multiple environments and across genetic backgrounds will be most amenable to manipulation by breeders.

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Section: Methodsmentioning

confidence: 99%

QTL Analysis of ICA Bunsi‐Derived Resistance to White Mold in a Pinto × Navy Bean Cross

et al. 2007

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“…AN-37, registered as USPT-WM-1, was released as a white mold tolerant germplasm (Miklas et al, 2006). AN-37 was developed from cross of Aztec pinto cultivar (Kelly et al, 1992) with ND88-106-04 navy bean breeding line where white mold resistance was derived from the navy bean parent that traces back to ICA Bunsi parentage (Miklas et al, 2004). AN-37 was developed from cross of Aztec pinto cultivar (Kelly et al, 1992) with ND88-106-04 navy bean breeding line where white mold resistance was derived from the navy bean parent that traces back to ICA Bunsi parentage (Miklas et al, 2004).…”

Section: Plant Materialsmentioning

confidence: 99%

Quantitative Trait Loci Analysis of White Mold Avoidance in Pinto Bean

et al. 2015

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White mold is a major disease of common bean (Phaseolus vulgaris L.) grown in temperate production areas. The objective of this study was to use single nucleotide polymorphism (SNP) markers from the BARCBean6K_3 BeadChip to identify quantitative trait loci (QTL) associated with traits related to white mold resistance in common bean. A recombinant inbred line (RIL) population from a cross of disease‐tolerant pinto line AN‐37 and disease‐susceptible line P02630 was evaluated in Michigan for 4 yr under white mold pressure. Traits evaluated included disease incidence, the numbers of days to flower and to maturity, canopy height, lodging, seed yield, and 100‐seed weight. A linkage map of the RIL population spanning 1499 cM was constructed using 447 SNP markers. The map covered all 11 bean chromosomes with an average distance of 3.6 cM between markers. A total of 13 QTL for agronomic and disease traits were consistently identified in different years. A major QTL WM3.1AN associated with white mold avoidance was validated on chromosome Pv03. The QTL is associated with disease avoidance traits such as canopy porosity, plant height, stay green stem trait, and maturity. Quantitative trait loci for maturity and canopy height also mapped to the same genomic region on Pv03. Finding strong associations between maturity, lodging, canopy height, and disease incidence offers alternative strategies to improve levels of white mold avoidance over greenhouse screening. The validation of the WM3.1AN, AP630 QTL for white mold avoidance should provide bean breeders with the opportunity to introgress avoidance traits into their germplasm.

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“…USPT-WM-1 (previously tested as AN-37) derives from a recombinant inbred population from the cross 'Aztec'/ND88-106-04. Aztec is a semi-upright pinto bean cultivar from Michigan State University that is susceptible to white mold (Kelly et al, 1992). ND88-106-04, from the cross N85007/ICA Bunsi, is an upright navy bean breeding line from North Dakota State University with resistance to white mold putatively derived from ICA Bunsi.…”

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confidence: 99%