Cited by 67Genetic Mapping and Diversity in Plants and AnimalsGenetic diversity and population structureCocoa and Sweet Potato Agronomy

Development and Characterization of Microsatellite Markers in Sweetpotato

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Hu, Jingjie, Nakatani, Makoto, Mizuno, Kouichi, Fujimura, Tatsuhito·2004·Breeding Science

Abstract

To promote the implementation of genetic analyses and breeding programs, a set of microsatellite markers in sweetpotato should be developed, which cover the entire sweetpotato genome. To achieve this objective, 102 polymorphic microsatellite markers were developed using three different methods: 1) screening of a small-insert genomic library, 2) construction of a microsatellite-enriched library (51-fold enrichment) and 3) mining of EST databases. Approximately 8,000 clones of the small-insert library were screened with (GA)20 and (CA)20 probes, and 42 positive clones were identified. One hundred and twenty-two clones containing microsatellites were identified from the enriched library, which consisted of 800 clones. Thirty-two and 47 primer pairs were designed for these clones containing microsatellites from the small-insert library and enriched library, respectively. Among the sweetpotato accessions examined, 27 of these microsatellite markers showed polymorphism. Eventually, 4,153 sequences from a published expressed sequence tag (EST) databases were mined as a source for the development of microsatellite markers, and 379 sequences containing microsatellites were identified. A total of 151 primer pairs were designed and 120 scorable microsatellite markers were obtained. Seventy-five EST-SSR loci showed length polymorphisms. Of these polymorphic loci, 71 % were associated with some genes.

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  1. Huamán, Z. (1999) Botany, origin, evolution and biodiversity of the sweetpotato. In "Sweetpotato Germplasm Management Train- ing Manual" Huamán, Z. (ed.), International Potato Center, Lima, Peru (www.cipotato.org/training/Materials/Sweetpotato/ Sweetpotato.htm).

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Authors
Hu, J., Nakatani, M., Mizuno, K., & Fujimura, T.
Affiliations
  • University of Tsukuba (JP)
  • National Institute of Crop Science (KR)
Venue
Breeding Science
Published
2004
Volume
54
Issue
2
Pages
177-188
ISSN
  • 0536-3683 (ISSN-L)
  • 1344-7610
  • 1347-3735
OpenAlex
W2075014516
Cited by
67
References
44
Citations by year
2025: 2 · 2024: 2 · 2023: 1 · 2022: 1 · 2021: 10 · 2020: 13 · 2019: 4 · 2018: 2 · 2017: 5 · 2016: 2 · 2015: 3 · 2014: 2 · 2012: 3
FWCI
1.07
Type
journal article
Language
en
Open access
Locations
Ikushugaku zasshi (publishedVersion)
Funders
Ministry of Agriculture, Forestry and Fisheries
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Mapping and Diversity in Plants and Animals
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic diversity and population structure
  • Life Sciences › Agricultural and Biological Sciences › Horticulture › Cocoa and Sweet Potato Agronomy
Keywords
Ipomoea batatas, microsatellite markers, EST-SSR markers, marker development, microsatellite-enriched library, expressed sequence tags, polymorphism, genetic diversity, genetic association

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