Evidence map›Paper›PMID 31796820›Full record

ArticleScientific reports2019

Phenotypic and molecular assessment of genetic structure and diversity in a panel of winged yam (Dioscorea alata) clones and cultivars.

Paterne Agre, Flora Asibe, Kwabena Darkwa, Alex Edemodu, Guillaume Bauchet, Robert Asiedu, Patrick Adebola, Asrat Asfaw

Abstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing 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

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

  1. Mapping the characterization landscape ofFrontiers in plant science · 2026
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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.

Paterne AgreInternational Institute of Tropical Agriculture (IITA), Ibadan, Nigeria. P.Agre@cgiar.org.
Flora AsibeInternational Institute of Tropical Agriculture (IITA), Ibadan, Nigeria.
Kwabena DarkwaInternational Institute of Tropical Agriculture (IITA), Ibadan, Nigeria.
Alex EdemoduInternational Institute of Tropical Agriculture (IITA), Ibadan, Nigeria.
Guillaume BauchetBoyce Thompson Institute, Cornell University, Ithaca, New York, USA.
Robert AsieduInternational Institute of Tropical Agriculture (IITA), Ibadan, Nigeria.
Patrick AdebolaInternational Institute of Tropical Agriculture (IITA), Abuja station, Nigeria.
Asrat AsfawInternational Institute of Tropical Agriculture (IITA), Ibadan, Nigeria.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A better understanding of the structure and extent of genetic variability in a breeding population of a crop is essential for translating genetic diversity to genetic gain. We assessed the nature and pattern of genetic variability and differentiation in a panel of 100 winged-yam (Dioscorea alata) accessions using 24 phenotypic traits and 6,918 single nucleotide polymorphism (SNP) markers. Multivariate analysis for phenotypic variability indicated that all phenotypic traits assessed were useful in discriminating the yam clones and cultivars. Cluster analysis based on phenotypic data distinguished two significant groups, while a corresponding analysis with SNP markers indicated three genetic groups. However, joint analysis for the phenotypic and genotypic data provided three clusters that could be useful for the identification of heterotic groups in the D. alata breeding program. Our analysis for phenotypic and molecular level diversity provided valuable information about overall diversity and variation in economically important traits useful for establishing crossing panels with contrasting traits of interest. The selection and hybridization of parental lines from the different heterotic groups identified would facilitate maximizing diversity and exploiting population heterosis in the D. alata breeding program.

Indexed as

DioscoreaGenetic Association StudiesGenetic VariationGenotyping TechniquesPhenotypePhylogenyPlant BreedingPolymorphism, Single NucleotideQuantitative Trait, Heritable

Identifiers

PMID31796820
PMCPMC6890776

What OpenQuestion holds

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Registered trials

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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.