Fine-mapping of a major QTL controlling angular leaf spot resistance in common bean (Phaseolus vulgaris L.)

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
Beat KellerBodo Raatz

Abstract

A major QTL for angular leaf spot resistance in the common bean accession G5686 was fine-mapped to a region containing 36 candidate genes. Markers have been developed for marker-assisted selection. Common bean (Phaseolus vulgaris L.) is an important grain legume and an essential protein source for human nutrition in developing countries. Angular leaf spot (ALS) caused by the pathogen Pseudocercospora griseola (Sacc.) Crous and U. Braun is responsible for severe yield losses of up to 80%. Breeding for resistant cultivars is the most ecological and economical means to control ALS and is particularly important for yield stability in low-input agriculture. Here, we report on a fine-mapping approach of a major quantitative trait locus (QTL) ALS4.1(GS, UC) for ALS resistance in a mapping population derived from the resistant genotype G5686 and the susceptible cultivar Sprite. 180 F3 individuals of the mapping population were evaluated for ALS resistance and genotyped with 22 markers distributed over 11 genome regions colocating with previously reported QTL for ALS resistance. Multiple QTL analysis identified three QTL regions, including one major QTL on chromosome Pv04 at 43.7 Mbp explaining over 75% of the observed variation for ALS...Continue Reading

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Citations

Jul 29, 2015·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·C LavaudM-L Pilet-Nayel
Feb 22, 2017·Genetics and Molecular Biology·Denis BassiLuciana Lasry Benchimol-Reis
Jun 1, 2017·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Giseli ValentiniMarcial A Pastor-Corrales
Feb 11, 2020·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Deepa JaganathanRajeev K Varshney
Mar 2, 2016·PloS One·Juliana Morini Küpper Cardoso PerseguiniLuciana Lasry Benchimol-Reis
Mar 2, 2018·Frontiers in Plant Science·Luciel Dos Santos FernandesJuan C Motamayor
Apr 13, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Juanita GilBodo Raatz
Dec 30, 2016·G3 : Genes - Genomes - Genetics·Oscar P Hurtado-GonzalesMarcial A Pastor-Corrales
Dec 4, 2019·Plant Breeding = Zeitschrift Für Pflanzenzüchtung·Chris OjiewoRajeev K Varshney
Nov 16, 2019·Plant Breeding = Zeitschrift Für Pflanzenzüchtung·Clare MukankusiSteve Beebe
Nov 2, 2020·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Larissa Carvalho CostaElaine Aparecida de Souza
Jul 1, 2019·Crop Science·Michelle M NayMarcial A Pastor-Corrales
May 1, 2021·Frontiers in Plant Science·Caléo Panhoca de AlmeidaLuciana Lasry Benchimol-Reis
Jun 3, 2021·Genes·Jean Fausto de Carvalho PaulinoLuciana Lasry Benchimol-Reis

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Methods Mentioned

BETA
genotyping
PCR

Software Mentioned

Phytozome genome browser
Mega5
megaBLAST
LightScanner
Primer3web
CleanEST
Phytozome
Clustal Omega
CIAT
R package qtl

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