Evidence map›Paper›PMID 33124693›Full record

ArticleThe New phytologist2021

Overcoming the trade-off between grain weight and number in wheat by the ectopic expression of expansin in developing seeds leads to increased yield potential.

Daniel F Calderini, Francisca M Castillo, Anita Arenas-M, Gemma Molero, Matthew P Reynolds, Melanie Craze, Sarah Bowden, Matthew J Milner, Emma J Wallington, Adam Dowle and 2 more

Abstract read
In one paragraph

Article in The New phytologist, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed, 1 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

52 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. 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
  2. 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
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  9. Origin, Evolution, and Diversification of the Expansin Family in Plants.International journal of molecular sciences · 2024
    Article
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  11. Article
  12. Review
  13. Review
  14. Overexpression of Wild Soybean Expansin GenePlants (Basel, Switzerland) · 2024
    Article
  15. Article
  16. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors.

Daniel F CalderiniInstitute of Plant Production and Protection, Universidad Austral de Chile, Campus Isla Teja, Valdivia, 5090000, Chile.ORCID 0000-0001-7873-5101
Francisca M CastilloInstitute of Plant Production and Protection, Universidad Austral de Chile, Campus Isla Teja, Valdivia, 5090000, Chile.ORCID 0000-0001-9039-5736
Anita Arenas-MInstitute of Plant Production and Protection, Universidad Austral de Chile, Campus Isla Teja, Valdivia, 5090000, Chile.ORCID 0000-0002-8459-164X
Gemma MoleroInternational Maize and Wheat Improvement Center (CIMMYT), El Batán, Texcoco, CP 56237, Mexico.ORCID 0000-0002-6431-7563
Matthew P ReynoldsInternational Maize and Wheat Improvement Center (CIMMYT), El Batán, Texcoco, CP 56237, Mexico.ORCID 0000-0002-4291-4316
Melanie CrazeNIAB, 93 Lawrence Weaver Road, Cambridge, CB3 0LE, UK.ORCID 0000-0003-0757-0914
Sarah BowdenNIAB, 93 Lawrence Weaver Road, Cambridge, CB3 0LE, UK.ORCID 0000-0001-5105-076X
Matthew J MilnerNIAB, 93 Lawrence Weaver Road, Cambridge, CB3 0LE, UK.ORCID 0000-0001-9184-7423
Emma J WallingtonNIAB, 93 Lawrence Weaver Road, Cambridge, CB3 0LE, UK.ORCID 0000-0003-3715-7901
Adam DowleCNAP, Biology Department, University of York, Wentworth Way, Heslington, York, YO10 5YW, UK.ORCID 0000-0002-6501-5444
Leonardo D GomezCNAP, Biology Department, University of York, Wentworth Way, Heslington, York, YO10 5YW, UK.ORCID 0000-0001-6382-9447
Simon J McQueen-MasonCNAP, Biology Department, University of York, Wentworth Way, Heslington, York, YO10 5YW, UK.ORCID 0000-0002-6781-4768

Funding

Biotechnology and Biological Sciences Research Council BB/J019356/Biotechnology and Biological Sciences Research Council BB/K021222/1Biotechnology and Biological Sciences Research Council BB/N023269/1
6 · The paper itself

Abstract

Wheat is the most widely grown crop globally, providing 20% of all human calories and protein. Achieving step changes in genetic yield potential is crucial to ensure food security, but efforts are thwarted by an apparent trade-off between grain size and number. Expansins are proteins that play important roles in plant growth by enhancing stress relaxation in the cell wall, which constrains cell expansion. Here, we describe how targeted overexpression of an α-expansin in early developing wheat seeds leads to a significant increase in grain size without a negative effect on grain number, resulting in a yield boost under field conditions. The best-performing transgenic line yielded 12.3% higher average grain weight than the control, and this translated to an increase in grain yield of 11.3% in field experiments using an agronomically appropriate plant density. This targeted transgenic approach provides an opportunity to overcome a common bottleneck to yield improvement across many crops.

Indexed as

Ectopic Gene ExpressionTriticumCrops, AgriculturalEdible GrainPlant ProteinsSeedsPlant Proteinsexpansin proteingrain numbergrain weightgrassespericarptrade-offtransgenic

Identifiers

PMID33124693
PMCPMC8048851

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.