Evidence map›Paper›PMID 42020689›Full record

ArticleScientific reports2026

Genetic dissection and stability analysis of grain protein content and thousand-grain weight in emmer wheat (Triticum turgidum subsp. dicoccum) germplasm.

Udaya Bhanu Angirekula, Jyoti Kumari, Pavan Kumar Naik, Shradha Mahawar, Rakesh Bhardwaj, Amit Kumar Singh, Shailendra Kumar Jha, Arun Gupta, Sudhir Navathe, Achla Sharma and 1 more

Abstract read
In one paragraph

Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

11 authors.

Udaya Bhanu AngirekulaGraduate School, ICAR-Indian Agricultural Research Institute, New Delhi, India.
Jyoti KumariICAR-National Bureau of Plant Genetic Resources, New Delhi, India. Jyoti.nbpgr@gmail.com.
Pavan Kumar NaikGraduate School, ICAR-Indian Agricultural Research Institute, New Delhi, India.
Shradha MahawarGraduate School, ICAR-Indian Agricultural Research Institute, New Delhi, India.
Rakesh BhardwajICAR-National Bureau of Plant Genetic Resources, New Delhi, India.
Amit Kumar SinghICAR-National Bureau of Plant Genetic Resources, New Delhi, India.
Shailendra Kumar JhaICAR-Indian Agricultural Research Institute, New Delhi, India.
Arun GuptaICAR-Indian Institute of Wheat & Barley Research, Karnal, India.
Sudhir NavatheAgharkar Research Institute, Pune, Maharashtra, India.
Achla SharmaPunjab Agricultural University, Ludhiana, Punjab, India.
Gyanendra Pratap SinghICAR-National Bureau of Plant Genetic Resources, New Delhi, India.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Emmer wheat (Triticum turgidum subsp. dicoccum), an allotetraploid species of wheat, is a rich source of nutritional as well as biotic and abiotic stress tolerance traits. It is an important genetic resource for improving grain protein content in durum and bread wheat, yet its genetic basis for protein accumulation and yield-related traits are less studied. In this study, a diverse panel of 150 emmer wheat germplasm accessions conserved in national genebank of India was evaluated for grain protein content (GPC) and thousand grain weight (TGW) across four environments (New Delhi, Pune, Karnal, and Ludhiana) during winter season 2021-2022 using an alpha lattice design. Genotypes were highly significant for GPC and TGW and substantial phenotypic variation (12.16-17.76% for GPC and 25.98 to 38.64 g for TGW) was observed based on pooled data. GPC and TGW were negatively correlated, with principal component analysis revealing opposing contributions of these traits to total phenotypic variation. We identified superior donors for GPC and TGW based on multi-environmental evaluation. Accessions EC578064, EC299074, EC577402, IC534016, and IC32513, exhibited consistently high GPC with moderate TGW across environments, while IC138455 and IC32513 were stable genotypes for GPC. Genome-wide association analysis using 6800 polymorphic SNP markers based on the 35 K Axiom Wheat Breeders' array identified 21 significant marker-trait associations (MTAs) across environments, out of these eight markers were located on chromosome 5B. Nine stable and novel MTAs were identified, which consistently expressed across locations, highlighting genomic regions with less genotype × environment interaction. These stable MTAs were linked to genes involved in nitrate transport, stress tolerance, grain development, and yield regulation, providing biologically meaningful targets for protein improvement in emmer wheat. Overall, this study resulted in the identification of promising donor genotypes for GPC and TGW, and linked markers and candidate genes for possible deployment into breeding program for the development of high yielding and protein rich wheat cultivars.

Indexed as

Edible GrainGrain ProteinsPlant ProteinsSeedsTriticumGenotypePhenotypeQuantitative Trait LociGrain ProteinsPlant ProteinsCandidate genesEmmer wheatGenetic diversityGrain protein contentGWASSNP markersThousand-grain weight

Identifiers

PMID42020689
PMCPMC13314985

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.