Evidence map›Paper›PMID 34750999›Full record

ArticleThe plant genome2022

Selection signatures in the CIMMYT International Elite Spring and Semi-arid Wheat Yield Trials.

Alexandre Mondaini, Umesh Rosyara, Deepmala Sehgal, Susanne Dreisigacker

Abstract read
In one paragraph

Article in The plant genome, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–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

5 citing papers in PubMed.

  1. The effect of selection on allele frequencies and diversity in wheat (Triticum aestivum).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026
    Article
  2. Article
  3. Wheat Omics: Advancements and Opportunities.Plants (Basel, Switzerland) · 2023
    Review
  4. Article
  5. Article
4 · The record

Corrections and comments

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.

Alexandre MondainiInstitute of Plant Breeding, Seed Science and Population Genetics, Univ. of Hohenheim, Fruhwirthstrasse 21, Stuttgart, 70593, Germany.
Umesh RosyaraInternational Maize and Wheat Improvement Center (CIMMYT), Global Wheat Program, Km45 Carretera Mexico-Veracruz, Texcoco, Edo. de México, 56237, México.
Deepmala SehgalInternational Maize and Wheat Improvement Center (CIMMYT), Global Wheat Program, Km45 Carretera Mexico-Veracruz, Texcoco, Edo. de México, 56237, México.
Susanne DreisigackerInternational Maize and Wheat Improvement Center (CIMMYT), Global Wheat Program, Km45 Carretera Mexico-Veracruz, Texcoco, Edo. de México, 56237, México.ORCID 0000-0002-3546-5989

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The International Maize and Wheat Improvement Center (CIMMYT) annually distributes advanced wheat (Triticum aestivum L.) breeding lines to collaborators worldwide through the International Wheat Improvement Network. Lines are disseminated through international nurseries, including the Elite Spring Wheat Yield Trial (ESWYT) targeted to optimal (irrigated and high production) wheat production areas and the Semi-arid Wheat Yield Trial (SAWYT) targeted to low rainfall environments. A total of 2,184 wheat lines that formed the ESWYT and SAWYT since 1979 and 1992, respectively, were genotyped using genotyping-by-sequencing to explore trends of genetic diversity and selection footprints associated with continuous crop improvement and adaptation. Due to a small population size of each trial, adjacent year trials were pooled into subpopulations. Population structure was evaluated using discriminant analysis of principal components and fixation index. High levels of admixture within and across the ESWYT and SAWYT subpopulations were revealed, indicating that the entire genetic diversity in the overall CIMMYT germplasm pool is harnessed to target core traits to individual mega-environments. Genome wide scans of deviations of minor allele frequencies at each marker identified large linkage blocks in several chromosomes. The scans also revealed that 9.8 and 2.0% of the SNP markers could be associated to selection signatures over time and to environmental adaptation (significant deviations between ESWYT and SAWYT), respectively. Several known genes and previously identified haplotypes associated with grain yield in more recent CIMMYT elite germplasm did fall into genomic regions with directional selection.

Indexed as

Plant BreedingTriticumGenotypeLinkage DisequilibriumPhenotype

Identifiers

PMID34750999
PMCPMC12893640

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.