Identification of QTL for agronomic traits and resistance to white mold in wild and landrace germplasm of common bean

Mkwaila, Wezi; Terpstra, Karolyn; Ender, Márcio; Kelly, James D.

doi:10.1111/j.1439-0523.2011.01876.x

Cited by 43 publications

(61 citation statements)

References 38 publications

(87 reference statements)

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“…Basically, the comparative map for white mold resistance QTL in common bean developed by Soule et al (2011) was updated herein to include the new QTL identified by Mkwaila et al (2011) andPérez-Vega et al (2012), and all the QTL conditioning avoidance traits from the studies reviewed by Soule et al (2011). In addition, QTL associated with plant internode length (IL), plant height (HT), branch angle (AG), lodging (LDG) and root traits (length, density, surface area) from studies unrelated to white mold (Tar'an et al 2002;Beebe et al 2006;Checa and Blair 2008;Cichy et al 2009), were added to the map.…”

Section: Methodsmentioning

confidence: 99%

Characterization of white mold disease avoidance in common bean

Miklas¹,

Porter²,

Kelly³

et al. 2013

Eur J Plant Pathol

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158

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White mold, caused by Sclerotinia sclerotiorum, is a devastating fungal disease of common bean (Phaseolus vulgaris L.) worldwide. Physiological resistance and disease avoidance conferred by plant architecture-related traits contribute to white mold field resistance. Our objective was to further examine white mold disease avoidance in common bean. A comparative map composed of 79 quantitative trait loci (QTL) for white mold resistance (27), disease avoidance traits (36) and root traits (16) was generated. Thirteen white mold resistance QTL, six with strong and seven with weak associations with disease avoidance traits, were observed. Root length and lodging QTL co-located in three regions.

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Section: Methodsmentioning

confidence: 99%

Characterization of white mold disease avoidance in common bean

Miklas¹,

Porter²,

Kelly³

et al. 2013

Eur J Plant Pathol

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158

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“…Mkwaila et al (2011) identified a QTL for the straw test method using a TW population (Tacana x PI318695) in the Pv02 linkage group near the BM143 marker. The authors suggest that this is the same QTL that was detected in Bunsi/Raven (Ender and Kelly, 2005) and G122/ CO72548 populations (Maxwell et al, 2007), and designated it WM2.3 BR,GC,TW .…”

Section: Discussionmentioning

confidence: 99%

Expression and validation of PvPGIP genes for resistance to white mold (Sclerotinia sclerotiorum) in common beans (Phaseolus vulgaris L.)

et al. 2016

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ABSTRACT. The interaction between polygalacturonase-inhibiting proteins (PGIPs), produced by plants, and endopolygalacturonases (PGs), produced by fungi, limits the destructive potential of PGs and can trigger plant defense responses. This study aimed to i) investigate variation in the expression of different common bean (Phaseolus vulgaris L.) genotypes and its relationship with resistance to white mold (Sclerotinia sclerotiorum); ii) determine the expression levels of PvPGIP genes at different time points after inoculation with white mold; and iii) investigate differences in PvPGIP gene expression between two white mold isolates with different levels of aggressiveness. Four bean lines were analyzed, including two lines from a recurrent selection for white mold (50/5 and 84/6), one resistant line that was not adapted to Brazilian conditions (Cornell 605), and one susceptible line (Corujinha). Gene expression was investigated at 0, 1, 2, 3, and 5 days after inoculation. The isolate UFLA 03 caused no significant difference in the relative expression of any gene examined, and was inefficient in discriminating among the genotypes. For the isolate UFLA 116, all of the genes were differentially expressed, as they were associated with resistance to white mold, and the expressions increased until the third day after inoculation. The 50/5 line was not significantly different from the Corujinha line for all of the genes analyzed. However, this line had a resistance level that was similar to that of Cornell 605, according to the straw test. Therefore, the incorporation of PvPGIP genes can increase the resistance of lines derived from recurrent selection.

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“…Escape mechanisms and physiological resistance mechanisms are quantitatively inherited and controlled by QTLs (quantitative trait loci) to both small and large effect (Miklas et al, 2013;Mkwaila et al, 2011;Soule et al, 2011;Lara et al, 2014).…”

mentioning

confidence: 99%

Increasing the resistance of common bean to white mold through recurrent selection

Leite

Dias

Souza

et al. 2016

Sci. agric. (Piracicaba, Braz.)

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White mold, caused by Sclerotinea sclerotiorum (Lib.) de Bary is one of the most important diseases of the common bean (Phaseolus vulgaris L.) worldwide. Physiological resistance and traits related to disease avoidance such as architecture contribute to field resistance. The aim of this study was to verify the efficiency of recurrent selection in physiological resistance to white mold, "Carioca" grain type and upright habit in common bean. Thirteen common bean lines with partial resistance to white mold were intercrossed by means of a circulant diallel table, and seven recurrent selection cycles were obtained. Of these cycles, progenies of the S 0:1 , S 0:2 and S 0:3 generations of cycles III, IV, V and VI were evaluated. The best (8 to 10) progenies of the seven cycles were also evaluated, in two experiments, one in the greenhouse and one in the field. Lattice and/or randomized block experimental designs were used. The traits evaluated were: resistance to white mold by the straw test method, growth habit and grain type. The most resistant progenies were selected based on the average score of resistance to white mold. Subsequently, they were evaluated with regard to grain type and growth habit. Recurrent selection allowed for genetic progress of about 11 % per year for white mold resistance and about 15 % per year for the plant architecture.There was no gain among cycles for grain type. Progeny selection and recurrent selection were efficient for obtaining progenies with a high level of resistance to white mold with "Carioca" grain type and upright habit.

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Identification of QTL for agronomic traits and resistance to white mold in wild and landrace germplasm of common bean

Cited by 43 publications

References 38 publications

Characterization of white mold disease avoidance in common bean

Characterization of white mold disease avoidance in common bean

Expression and validation of PvPGIP genes for resistance to white mold (Sclerotinia sclerotiorum) in common beans (Phaseolus vulgaris L.)

Increasing the resistance of common bean to white mold through recurrent selection

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