Evidence map›Paper›PMID 41120405›Full record

ArticleScientific reports2025

Assessing genetic gain and diversity in Ethiopian bread wheat across six decades.

Sefawdin Berta, Temesgen Matiwos Menamo, Zerihun Tadesse, Techale Birhan, Abush Tesfaye Abebe

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PubMed Full text at PMC Publisher
In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

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3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. 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

5 authors.

Sefawdin BertaHorticulture and Plant Science Department, College of Agriculture and Veterinary Medicine, Jimma University, Jimma, Ethiopia.
Temesgen Matiwos MenamoHorticulture and Plant Science Department, College of Agriculture and Veterinary Medicine, Jimma University, Jimma, Ethiopia.
Zerihun TadesseInternational Maize and Wheat Improvement Center (CIMMYT), Texcoco, Mexico.
Techale BirhanOklahoma State University, Institute of Agricultural Bioscience, Stillwater, OK, USA.
Abush Tesfaye AbebeInternational Institute of Tropical Agriculture, Ibadan, IITA, Nigeria. At.Abebe@cgiar.org.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Assessing breeding progress and genetic diversity in released varieties is crucial for informing future crop improvement strategies. This study evaluated genetic gain and diversity in 49 Ethiopian wheat varieties released over six decades (1967-2021). Significant yield increases were observed, with 'Shaki' showing the highest gain. However, the average annual genetic gain was modest (0.90% under irrigated, 0.69% under rain-fed). The recent released bread wheat variety ″Shaki″ exhibited a 48.6% increase in grain yield under irrigated conditions and a 37.1% increase under rain-fed conditions over the oldest variety, "Lakech". Genetic diversity analysis revealed a decline in heterozygosity and a skewed allele distribution, suggesting potential inbreeding within the breeding program. Population structure analysis indicated a shared genetic background across decades. The low genetic gain and declining diversity highlight the need for strategies to enhance genetic diversity and incorporate novel yield-associated traits to achieve sustainable genetic improvement in Ethiopian wheat breeding.

Indexed as

Genetic VariationTriticumAllelesBreadEthiopiaPlant BreedingAllele frequencyGenetic diversityGenetic progressGrain yieldRegression analysis

Identifiers

PMID41120405
PMCPMC12540979

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