Development of SSR markers and identification of major quantitative trait loci controlling shelling percentage in cultivated peanut (Arachis hypogaea L.)

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
Huaiyong LuoHuifang Jiang

Abstract

A total of 204,439 SSR markers were developed in diploid genomes, and 25 QTLs for shelling percentage were identified in a RIL population across 4 years including five consistent QTLs. Cultivated peanut (Arachis hypogaea L.) is an important grain legume providing edible oil and protein for human nutrition. Genome sequences of its diploid ancestors, Arachis duranensis and A. ipaensis, were reported, but their SSRs have not been well exploited and utilized hitherto. Shelling percentage is an important economic trait and its improvement has been one of the major objectives in peanut breeding programs. In this study, the genome sequences of A. duranensis and A. ipaensis were used to develop SSR markers, and a mapping population (Yuanza 9102 × Xuzhou 68-4) with 195 recombinant inbred lines was used to map QTLs controlling shelling percentage. The numbers of newly developed SSR markers were 84,383 and 120,056 in the A. duranensis and A. ipaensis genomes, respectively. Genotyping of the mapping population was conducted with both newly developed and previously reported markers. QTL analysis using the phenotyping data generated in Wuhan across four consecutive years and genotyping data of 830 mapped loci identified 25 QTLs with 4.46-17....Continue Reading

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Citations

Oct 24, 2017·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Huaiyong LuoHuifang Jiang
Oct 11, 2019·Plant Breeding = Zeitschrift Für Pflanzenzüchtung·Haile DesmaeRajeev K Varshney
Jan 26, 2020·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Huaiyong LuoHuifang Jiang
Jun 18, 2021·Frontiers in Plant Science·Shujun WangTieliang Wang

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Methods Mentioned

BETA
PCR
genotyping

Software Mentioned

R
JoinMap
SPSS Statistics
MISA
MapChart
BioMercator
QTL Cartographer
Primer3

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