Genome-Wide SNP Identification and Association Mapping for Seed Mineral Concentration in Mung Bean (Vigna radiata L.)

Frontiers in Genetics
Xingbo WuMatthew Wohlgemuth Blair

Abstract

Mung bean (Vigna radiata L.) quality is dependent on seed chemical composition, which in turn determines the benefits of its consumption for human health and nutrition. While mung bean is rich in a range of nutritional components, such as protein, carbohydrates and vitamins, it remains less well studied than other legume crops in terms of micronutrients. In addition, mung bean genomics and genetic resources are relatively sparse. The objectives of this research were three-fold, namely: to develop a genome-wide marker system for mung bean based on genotyping by sequencing (GBS), to evaluate diversity of mung beans available to breeders in the United States and finally, to perform a genome-wide association study (GWAS) for nutrient concentrations based on a seven mineral analysis using inductively coupled plasma (ICP) spectroscopy. All parts of our research were performed with 95 cultivated mung bean genotypes chosen from the USDA core collection representing accessions from 13 countries. Overall, we identified a total of 6,486 high quality single nucleotide polymorphisms (SNPs) from the GBS dataset and found 43 marker × trait associations (MTAs) with calcium, iron, potassium, manganese, phosphorous, sulfur or zinc concentrations...Continue Reading

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Citations

Sep 6, 2020·Plants·Grace RussellJohn T Hancock
Jan 12, 2021·Frontiers in Plant Science·Paula H Reyes-HerreraAndrés J Cortés

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Methods Mentioned

BETA
Genotyping
electrophoresis

Software Mentioned

TASSEL ( Trait Analysis by aSSociation , Evolution and Linkage )
FASTQ
vcftools
R
TASSEL

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