Unravelling consensus genomic regions associated with quality traits in wheat using meta-analysis of quantitative trait loci

Main conclusion Meta-analysis in wheat for three major quality traits identified 110 meta-QTL (MQTL) with reduced confidence interval (CI). Five GWAS validated MQTL (viz., 1A.1, 1B.2, 3B.4, 5B.2, and 6B.2), each involving more than 20 initial QTL and reduced CI (95%) ( 2 transcripts per million expr...

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Bibliographic Details
Published in:Planta 2022-06, Vol.255 (6), p.115-115, Article 115
Main Authors: Gudi, Santosh, Saini, Dinesh Kumar, Singh, Gurjeet, Halladakeri, Priyanka, Kumar, Pradeep, Shamshad, Mohammad, Tanin, Mohammad Jafar, Singh, Satinder, Sharma, Achla
Format: Article
Language:English
Subjects:
Agriculture
Biomedical and Life Sciences
Confidence intervals
Dough
Ecology
Forestry
Gene expression
Gene mapping
Genes
Genome-wide association studies
Genomes
Genomics
Glutenin
Grain
Life Sciences
Markers
Meta-analysis
Original Article
Plant breeding
Plant Sciences
Quantitative trait loci
Rheological properties
Rheology
Rice
Starch synthase
Synteny
Wheat
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Summary:Main conclusion Meta-analysis in wheat for three major quality traits identified 110 meta-QTL (MQTL) with reduced confidence interval (CI). Five GWAS validated MQTL (viz., 1A.1, 1B.2, 3B.4, 5B.2, and 6B.2), each involving more than 20 initial QTL and reduced CI (95%) ( 2 transcripts per million expressions in grains and related tissues, which also included 44 high-confidence CGs involved in the various cellular and biochemical processes related to quality traits. Nine functionally characterized wheat genes associated with grain protein content, high-molecular-weight glutenin, and starch synthase enzymes were also found to be co-localized with some of the MQTL. Synteny analysis between wheat and rice MQTL regions identified 23 wheat MQTL syntenic to 16 rice MQTL associated with quality traits. Furthermore, 64 wheat orthologues of 30 known rice genes were detected in 44 MQTL regions. Markers flanking the MQTL identified in the present study can be used for marker-assisted breeding and as fixed effects in the genomic selection models for improving the prediction accuracy during quality breeding. Wheat orthologues of rice genes and other CGs available from MQTLs can be promising targets for further functional validation and to better understand the molecular mechanism under
ISSN:0032-0935
1432-2048
DOI:10.1007/s00425-022-03904-4