Evidence map›Paper›PMID 21625992›Full record

ArticleTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2011

Prevalence of segregation distortion in diploid alfalfa and its implications for genetics and breeding applications.

Xuehui Li, Xiaojuan Wang, Yanling Wei, E Charles Brummer

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Article in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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2 · The registry

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3 · Its place in the literature

Who cites it

37 citing papers in PubMed.

  1. Review
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  7. OMICS in Fodder Crops: Applications, Challenges, and Prospects.Current issues in molecular biology · 2022
    Review
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  12. Review
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  15. Article
  16. Article
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  18. Article
  19. The First Genetic Map in Sweet Osmanthus (Frontiers in plant science · 2017
    Article
  20. Article
4 · The record

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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Xuehui LiForage Improvement Division, The Samuel Roberts Noble Foundation, Ardmore, OK 73401, USA.
Xiaojuan Wang
Yanling Wei
E Charles Brummer

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Segregation distortion (SD) is often observed in plant populations; its presence can affect mapping and breeding applications. To investigate the prevalence of SD in diploid alfalfa (Medicago sativa L.), we developed two unrelated segregating F(1) populations and one F(2) population. We genotyped all populations with SSR markers and assessed SD at each locus in each population. The three maps were syntenic and largely colinear with the Medicago truncatula genome sequence. We found genotypic SD for 24 and 34% of markers in the F(1) populations and 68% of markers in the F(2) population; distorted markers were identified on every linkage group. The smaller percentage of genotypic SD in the F(1) populations could be because they were non-inbred and/or due to non-fully informative markers. For the F(2) population, 60 of 90 mapped markers were distorted, and they clustered into eight segregation distortion regions (SDR). Most SDR identified in the F(1) populations were also identified in the F(2) population. Genotypic SD was primarily due to zygotic rather than allelic distortion, suggesting zygotic not gametic selection is the main cause of SD. On the F(2) linkage map, distorted markers in all SDR except two showed heterozygote excess. The severe SD in the F(2) population likely biased genetic distances among markers and possibly also marker ordering and could affect QTL mapping of agronomic traits. To reduce the effects of SD and non-fully informative markers, we suggest constructing linkage maps and conducting QTL mapping in advanced generation populations.

Indexed as

Chromosome SegregationGenome, PlantAllelesBreedingChromosome MappingDiploidyGenetics, PopulationGenotypeLinkage DisequilibriumMedicago sativaMicrosatellite RepeatsQuantitative Trait Loci

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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.