Evidence map›Paper›PMID 20363770›Full record

ArticleThe Plant cell2010

A genetic framework for grain size and shape variation in wheat.

Vasilis C Gegas, Aida Nazari, Simon Griffiths, James Simmonds, Lesley Fish, Simon Orford, Liz Sayers, John H Doonan, John W Snape

Abstract read
In one paragraph

Article in The Plant cell, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 198 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
198citing papers in PubMed, 4 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

198 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
  2. Meta-QTLs, ortho-meta-QTLs and candidate genes for grain yield and associated traits in wheat (Triticum aestivum L.).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022
    Pooled it
  3. Pooled it
  4. Pooled it
  5. Genome-wide association studies reveal genomic regions for kernel-related traits in durum wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026
    Article
  6. Identification of stable QTL for yield-related traits in a durum wheat Svevo × Zavitan RIL population.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026
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  11. Impact of Alien Chromosome Introgression fromPlants (Basel, Switzerland) · 2025
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  12. Large-scale identification and association analysis of wheat grain weight genes using rice orthologs.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025
    Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. The selection and application of tiller number QTLs in modern wheat breeding.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025
    Article
  18. Article
  19. Article
  20. Article

138 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors.

Vasilis C GegasDepartment of Crop Genetics, John Ines Centre, Norwich NR4 7UH, United Kingdom.
Aida Nazari
Simon Griffiths
James Simmonds
Lesley Fish
Simon Orford
Liz Sayers
John H Doonan
John W Snape

Funding

Biotechnology and Biological Sciences Research Council BB/E00721x/1Biotechnology and Biological Sciences Research Council BB/E00721X/1Biotechnology and Biological Sciences Research Council BBS/E/J/00000129
6 · The paper itself

Abstract

Grain morphology in wheat (Triticum aestivum) has been selected and manipulated even in very early agrarian societies and remains a major breeding target. We undertook a large-scale quantitative analysis to determine the genetic basis of the phenotypic diversity in wheat grain morphology. A high-throughput method was used to capture grain size and shape variation in multiple mapping populations, elite varieties, and a broad collection of ancestral wheat species. This analysis reveals that grain size and shape are largely independent traits in both primitive wheat and in modern varieties. This phenotypic structure was retained across the mapping populations studied, suggesting that these traits are under the control of a limited number of discrete genetic components. We identified the underlying genes as quantitative trait loci that are distinct for grain size and shape and are largely shared between the different mapping populations. Moreover, our results show a significant reduction of phenotypic variation in grain shape in the modern germplasm pool compared with the ancestral wheat species, probably as a result of a relatively recent bottleneck. Therefore, this study provides the genetic underpinnings of an emerging phenotypic model where wheat domestication has transformed a long thin primitive grain to a wider and shorter modern grain.

Indexed as

Evolution, MolecularQuantitative Trait LociChromosome MappingGenes, PlantPhenotypePrincipal Component AnalysisSeedsTriticum

Identifiers

PMID20363770
PMCPMC2879751

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.