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Next‐generation sequencing identified genomic region and diagnostic markers for resistance to bacterial wilt on chromosome B02 in peanut ( Arachis hypogaea L.)

by Varshney, R K , Ren, X , Khan, A W , Zhou, X , Chen, Y , Chen, W , Wu, B , Liu, N , Jiang, H , Liao, B , Huang, L , Luo, H , Lei, Y , Pandey, M K , Guo, J

in Analysis / Arachis - genetics / Arachis - microbiology / Arachis hypogaea / Bacteria / bacterial wilt / bacterial wilt resistance / biotechnology / candidate genes / Chromosome Mapping / Chromosomes / Chromosomes, Plant / Cloning / Confidence intervals / Cultivars / diagnostic markers / Diagnostic systems / Disease / Disease Resistance - genetics / Flowers & plants / Gene mapping / Genes / Genetic aspects / Genetic research / Genomes / Genomics / High-Throughput Nucleotide Sequencing / Hypotheses / Inbreeding / Mapping / Markers / Nucleotides / Pathogens / peanut / Peanuts / Plant bacterial diseases / Plant breeding / Plant Diseases - genetics / Plant Diseases - microbiology / Plant species / Polymorphism / Polymorphism, Single Nucleotide / Population / Proteins / QTL‐seq / Quantitative genetics / Quantitative Trait Loci / Ralstonia solanacearum / Recombination / Single nucleotide polymorphisms / Single-nucleotide polymorphism / Wilt

2019

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Next‐generation sequencing identified genomic region and diagnostic markers for resistance to bacterial wilt on chromosome B02 in peanut ( Arachis hypogaea L.)

by Varshney, R K , Ren, X , Khan, A W , Zhou, X , Chen, Y , Chen, W , Wu, B , Liu, N , Jiang, H , Liao, B , Huang, L , Luo, H , Lei, Y , Pandey, M K , Guo, J

2019

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Next‐generation sequencing identified genomic region and diagnostic markers for resistance to bacterial wilt on chromosome B02 in peanut ( Arachis hypogaea L.)

by Varshney, R K , Ren, X , Khan, A W , Zhou, X , Chen, Y , Chen, W , Wu, B , Liu, N , Jiang, H , Liao, B , Huang, L , Luo, H , Lei, Y , Pandey, M K , Guo, J

2019

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Journal Article

Next‐generation sequencing identified genomic region and diagnostic markers for resistance to bacterial wilt on chromosome B02 in peanut ( Arachis hypogaea L.)

Varshney, R K,

Ren, X,

Khan, A W,

Zhou, X,

Chen, Y,

Chen, W,

Wu, B,

Liu, N,

Jiang, H,

Liao, B,

Huang, L,

Luo, H,

Lei, Y,

Pandey, M K,

Guo, J

2019

Overview

Bacterial wilt, caused by Ralstonia solanacearum, is a devastating disease affecting over 350plant species. A few peanut cultivars were found to possess stable and durable bacterial wiltresistance (BWR). Genomics-assisted breeding can accelerate the process of developing resistant cultivars by using diagnostic markers. Here, we deployed sequencing-based trait mappingapproach, QTL-seq, to discover genomic regions, candidate genes and diagnostic markers for BWR in a recombination inbred line population (195 progenies) of peanut. The QTL-seq analysis identified one candidate genomic region on chromosome B02 significantly associated with BWR.Mapping of newly developed single nucleotide polymorphism (SNP) markers narrowed down theregion to 2.07 Mb and confirmed its major effects and stable expressions across three environments. This candidate genomic region had 49 non synonymous SNPs affecting 19 putative candidate genes including seven putative resistance genes (R-genes). Two diagnostic markers were successfully validated in diverse breeding lines and cultivars and could be deployed in genomics-assisted breeding of varieties with enhanced BWR.

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Publisher

Wiley Open Access,John Wiley & Sons, Inc,John Wiley and Sons Inc

Subject

Analysis

/ Arachis - genetics

/ Arachis - microbiology

/ Arachis hypogaea

/ Bacteria

/ bacterial wilt

/ bacterial wilt resistance