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Refining a major QTL controlling spotted wilt disease resistance in cultivated peanut (Arachis hypogaea L.) and evaluating its contribution to the resistance variations in peanut germplasm

Overview of attention for article published in BMC Genomic Data, March 2018
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Title
Refining a major QTL controlling spotted wilt disease resistance in cultivated peanut (Arachis hypogaea L.) and evaluating its contribution to the resistance variations in peanut germplasm
Published in
BMC Genomic Data, March 2018
DOI 10.1186/s12863-018-0601-3
Pubmed ID
Authors

Zifan Zhao, Yu-Chien Tseng, Ze Peng, Yolanda Lopez, Charles Y. Chen, Barry L. Tillman, Phat Dang, Jianping Wang

Abstract

Spotted wilt, caused by tomato spotted wilt virus (TSWV), has been one of major diseases in cultivated peanut grown in the southeastern United States (US) since 1990. Previously a major quantitative trait locus (QTL) controlling spotted wilt disease resistance was mapped to an interval of 2.55 cM genetic distance corresponding to a physical distance of 14.4 Mb on chromosome A01 of peanut by using a segregating F2population. The current study focuses on refining this major QTL region and evaluating its contributions in the US peanut mini-core germplasm. Two simple sequence repeat (SSR) markers associated with the major QTL were used to genotype F5individuals, and 25 heterozygous individuals were selected and developed into an F6segregating population. Based on visual evaluation in the field, a total of 194 susceptible F6individuals were selected and planted into F7generation for phenotyping. Nine SSR markers were used to genotype the 194 F6individuals, and QTL analysis revealed that a confidence interval of 15.2 Mb region had the QTL with 22.8% phenotypic variation explained (PVE). This QTL interval was further genotyped using the Amplicon-seq method. A total of 81 non-redundant single nucleotide polymorphism (SNP) and eight InDel markers were detected. No recombinant was detected among the F6individuals. Two InDel markers were integrated into the linkage group and helped to refine the confidence interval of this QTL into a 0.8 Mb region. To test the QTL contributes to the resistance variance in US peanut mini-core germplasm, two flanking SSR markers were used to genotype 107 mini-core germplasm accessions. No statistically significant association was observed between the genotype at the QTL region and spotted wilt resistance in the mini-core germplasm, which indicated that the resistance allelic region at this QTL didn't contribute to the resistance variance in the US peanut mini-core germplasm, thus was a unique resistance source. A major QTL related to spotted wilt disease resistance in peanut was refined to a 0.8 Mb region on A01 chromosome, which didn't relate to spotted wilt disease resistance in the US peanut mini-core germplasm and might be a unique genetic source.

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The data shown below were compiled from readership statistics for 23 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 23 100%

Demographic breakdown

Readers by professional status Count As %
Student > Doctoral Student 5 22%
Researcher 4 17%
Student > Ph. D. Student 3 13%
Student > Bachelor 1 4%
Professor 1 4%
Other 2 9%
Unknown 7 30%
Readers by discipline Count As %
Agricultural and Biological Sciences 14 61%
Social Sciences 1 4%
Materials Science 1 4%
Unknown 7 30%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 25 March 2018.
All research outputs
#22,767,715
of 25,382,440 outputs
Outputs from BMC Genomic Data
#1,008
of 1,204 outputs
Outputs of similar age
#306,350
of 346,639 outputs
Outputs of similar age from BMC Genomic Data
#9
of 10 outputs
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