Evidence map›Paper›PMID 22818284›Full record

ArticleBMC research notes2012

Characterization and compilation of polymorphic simple sequence repeat (SSR) markers of peanut from public database.

Yongli Zhao, Channapatna S Prakash, Guohao He

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Article in BMC research notes, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

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15citing papers in PubMed
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3 · Its place in the literature

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15 citing papers in PubMed.

  1. Review
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  4. PeerJ · 2022
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  15. QTL mapping for bacterial wilt resistance in peanut (Molecular breeding : new strategies in plant improvement
    Article
4 · The record

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5 · Who and what money

Authors and funding

3 authors.

Yongli ZhaoDepartment of Agricultural and Environmental Sciences, Tuskegee University, Tuskegee, AL 36088, USA.
Channapatna S Prakash
Guohao He

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere are several reports describing thousands of SSR markers in the peanut (Arachis hypogaea L.) genome. There is a need to integrate various research reports of peanut DNA polymorphism into a single platform. Further, because of lack of uniformity in the labeling of these markers across the publications, there is some confusion on the identities of many markers. We describe below an effort to develop a central comprehensive database of polymorphic SSR markers in peanut.

findingsWe compiled 1,343 SSR markers as detecting polymorphism (14.5%) within a total of 9,274 markers. Amongst all polymorphic SSRs examined, we found that AG motif (36.5%) was the most abundant followed by AAG (12.1%), AAT (10.9%), and AT (10.3%).The mean length of SSR repeats in dinucleotide SSRs was significantly longer than that in trinucleotide SSRs. Dinucleotide SSRs showed higher polymorphism frequency for genomic SSRs when compared to trinucleotide SSRs, while for EST-SSRs, the frequency of polymorphic SSRs was higher in trinucleotide SSRs than in dinucleotide SSRs. The correlation of the length of SSR and the frequency of polymorphism revealed that the frequency of polymorphism was decreased as motif repeat number increased.

conclusionsThe assembled polymorphic SSRs would enhance the density of the existing genetic maps of peanut, which could also be a useful source of DNA markers suitable for high-throughput QTL mapping and marker-assisted selection in peanut improvement and thus would be of value to breeders.

Indexed as

Databases, GeneticMicrosatellite RepeatsPolymorphism, GeneticArachisGenes, PlantGenetic MarkersPublic SectorGenetic Markers

Identifiers

PMID22818284
PMCPMC3500262

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.