Evidence map›Paper›PMID 31367839›Full record

SynthesisTAG. Theoretical and applied genetics. Theoretische und angewandte Genetik2019

A genome-wide association and meta-analysis reveal regions associated with seed size in cowpea [Vigna unguiculata (L.) Walp].

Sassoum Lo, María Muñoz-Amatriaín, Samuel A Hokin, Ndiaga Cisse, Philip A Roberts, Andrew D Farmer, Shizhong Xu, Timothy J Close

Abstract readMeta-Analysis
In one paragraph

Synthesis in TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing 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

36 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Article
  7. Genome-Wide Genetic Architecture for Common Scab (International journal of molecular sciences · 2025
    Article
  8. Article
  9. Genome-Wide Association Study on Cowpea seed coat color using RGB images.Molecular breeding : new strategies in plant improvement · 2024
    Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Review
  16. Article
  17. Article
  18. Genetic Architecture of Salt Tolerance in Cowpea (International journal of molecular sciences · 2023
    Article
  19. Article
  20. 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

8 authors.

Sassoum LoDepartment of Botany and Plant Sciences, University of California, Riverside, CA, 92521, USA. slo008@ucr.edu.ORCID http://orcid.org/0000-0002-0385-5691
María Muñoz-AmatriaínDepartment of Botany and Plant Sciences, University of California, Riverside, CA, 92521, USA.
Samuel A HokinNational Center for Genome Resources, Santa Fe, NM, 87505, USA.
Ndiaga CisseCentre d'Etude Régional pour l'Amélioration de l'Adaptation à la Sècheresse, ISRA/CERAAS, Thies, Senegal.
Philip A RobertsDepartment of Nematology, University of California, Riverside, CA, 92521, USA.
Andrew D FarmerNational Center for Genome Resources, Santa Fe, NM, 87505, USA.
Shizhong XuDepartment of Botany and Plant Sciences, University of California, Riverside, CA, 92521, USA.
Timothy J CloseDepartment of Botany and Plant Sciences, University of California, Riverside, CA, 92521, USA.

Funding

Directorate for Biological Sciences 1543963Feed the Future Innovation Lab for Climate Resilient Cowpea AID-OAA-A-13-00070
6 · The paper itself

Abstract

key messageThis paper combined GWAS, meta-analysis and sequence homology comparison with common bean to identify regions associated with seed size variation in domesticated cowpea. Seed size is an important trait for yield and commercial value in dry-grain cowpea. Seed size varies widely among different cowpea accessions, and the genetic basis of such variation is not yet well understood. To better decipher the genetic basis of seed size, a genome-wide association study (GWAS) and meta-analysis were conducted on a panel of 368 cowpea diverse accessions from 51 countries. Four traits, including seed weight, length, width and density were evaluated across three locations. Using 51,128 single nucleotide polymorphisms covering the cowpea genome, 17 loci were identified for these traits. One locus was common to weight, width and length, suggesting pleiotropy. By integrating synteny-based analysis with common bean, six candidate genes (Vigun05g036000, Vigun05g039600, Vigun05g204200, Vigun08g217000, Vigun11g187000, and Vigun11g191300) which are implicated in multiple functional categories related to seed size such as endosperm development, embryo development, and cell elongation were identified. These results suggest that a combination of GWAS meta-analysis with synteny comparison in a related plant is an efficient approach to identify candidate gene (s) for complex traits in cowpea. The identified loci and candidate genes provide useful information for improving cowpea varieties and for molecular investigation of seed size.

Indexed as

Chromosome MappingGenes, PlantGenetic Association StudiesGenotypePhenotypePolymorphism, Single NucleotideQuantitative Trait LociSeedsVigna

Identifiers

PMID31367839
PMCPMC6791911

What OpenQuestion holds

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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 OpenQuestion graph.