Evidence map›Paper›PMID 32277363›Full record

ArticleGenes & genomics2020

Genetic differentiation of Mutator insertion polymorphisms and association with agronomic traits in waxy and common maize.

Rahul Vasudeo Ramekar, Kyu Jin Sa, Kyong-Cheul Park, Jong Yeol Park, Ki Jin Park, Ju Kyong Lee

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Article in Genes & genomics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

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2citing papers in PubMed
0.5field-weighted citation impact, top 26% of its field
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5 · Who and what money

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6 authors at 1 institution in 1 country.

Rahul Vasudeo RamekarDepartment of Applied Plant Sciences, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon, 200-701, South Korea.
Kyu Jin SaDepartment of Applied Plant Sciences, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon, 200-701, South Korea.
Kyong-Cheul ParkDepartment of Agriculture and Life Industry, Kangwon National University, Chuncheon, 200-701, South Korea.
Jong Yeol ParkMaize Research Institute, Gangwon Agricultural Research and Extension Services, Hongcheon, 250-823, South Korea.
Ki Jin ParkMaize Research Institute, Gangwon Agricultural Research and Extension Services, Hongcheon, 250-823, South Korea.
Ju Kyong LeeDepartment of Applied Plant Sciences, College of Agriculture and Life Sciences, Kangwon National University, Chuncheon, 200-701, South Korea. jukyonglee@kangwon.ac.kr.
Kangwon National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAs waxy maize is considered a key economic crop in Korea, an understanding of its genetic variation and differentiation is fundamental for the selective plant breeding. The maize genome is primarily composed of transposable elements, for which large and stable insertions generate variations that reflect selection during evolution.

objectivesThis study was to elucidate the genetic diversity based on the contribution of TEs and to investigate the effect of Mu transposition on the genetic divergence of waxy and common maize. We also performed an association analysis on these inbred lines to determine the Mu insertions associated with agronomic traits.

methodsIn this study, we utilized a Mutator-based transposon display method to study the genetic diversity and population structure of 40 waxy and 40 common inbred lines of maize in the Gangwon Agricultural Research and Extension Services collection at the Maize Research Institute.

resultsWe detected polymorphisms in 86.33% of 278 Mutator (Mu) anchored loci, reflecting the activity of the Mu element and its contribution to genetic variation. Common maize showed a substantial amount of genetic diversity, which was greater than that observed in waxy maize. Principal-coordinate and neighbor-joining cluster analyzes consistently supported the presence of two genetically distinct groups. However, the distribution of genetic variation within the populations was much higher than the genetic differentiation among the populations. To explore the contribution of the Mu element to phenotypic variation, we analyzed the associations with ten important agronomical traits. On the basis of the combined results from two models (QGLM and Q + KLM), we found significant associations between seven Mu loci and four different traits.

conclusionsThese results will assist waxy maize breeders in choosing parental lines and be useful for marker-assisted selection.

Indexed as

Polymorphism, GeneticQuantitative Trait LociEdible GrainMutagenesis, InsertionalPlant BreedingQuantitative Trait, HeritableZea maysassociation analysisgenetic diversityinbred linesmaizeMutator insertion polymorphism

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PMID32277363
OpenAlexW3015695073

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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.