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Genetic diversity and population structure analysis of synthetic and bread wheat accessions in Western Siberia.
J Appl Genet. 2019 Nov; 60(3-4):283-289.JA

Abstract

Recurrent selection and intercrossing between best of the best parents in each generation of breeding cycle resulted in a narrower genetic diversity in elite wheat (Triticum aestivum L.) germplasm. Therefore, we investigated diverse source of 143 synthetic and bread wheat accessions for identifying potentially rich genetic resources for improving the genetic diversity in wheat. This study identified 47,526 genotyping-by-sequencing-derived SNP markers that were nearly evenly distributed across three genomes of wheat. The population structure analysis identified three distinct clusters (Japan synthetics, CIMMYT synthetics, and bread wheat) of wheat genotypes on the basis of type and geographical origin of wheat accessions. Population differentiation using analysis of molecular variance indicated 21% of the total genetic variance among subgroups and the remainder within subgroups. This study also identified that the Japan synthetic group was the most divergent group compared with other subgroups. The genetic diversity comparisons between synthetic and bread wheat lines showed that the gene diversity of synthetic wheat was 33% higher than bread wheat accessions, indicating the potential use of these lines for broadening the genetic diversity of modern wheat cultivars. The results from this study will be helpful in further understanding genomic features of wheat and facilitate their use in wheat breeding programs.

Authors+Show Affiliations

Department of Agronomy, University of Wisconsin-Madison, Madison, WI, 53706, USA.Omsk State Agrarian University, Omsk, Russia.Omsk State Agrarian University, Omsk, Russia.Department of Agronomy and Horticulture, University of Nebraska, Lincoln, NE, 68583, USA.Omsk State Agrarian University, Omsk, Russia.Omsk State Agrarian University, Omsk, Russia.International Maize and Wheat Improvement Center (CIMMYT), Ankara, Turkey. a.morgounov@cgiar.org.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31414379

Citation

Bhatta, Madhav, et al. "Genetic Diversity and Population Structure Analysis of Synthetic and Bread Wheat Accessions in Western Siberia." Journal of Applied Genetics, vol. 60, no. 3-4, 2019, pp. 283-289.
Bhatta M, Shamanin V, Shepelev S, et al. Genetic diversity and population structure analysis of synthetic and bread wheat accessions in Western Siberia. J Appl Genet. 2019;60(3-4):283-289.
Bhatta, M., Shamanin, V., Shepelev, S., Baenziger, P. S., Pozherukova, V., Pototskaya, I., & Morgounov, A. (2019). Genetic diversity and population structure analysis of synthetic and bread wheat accessions in Western Siberia. Journal of Applied Genetics, 60(3-4), 283-289. https://doi.org/10.1007/s13353-019-00514-x
Bhatta M, et al. Genetic Diversity and Population Structure Analysis of Synthetic and Bread Wheat Accessions in Western Siberia. J Appl Genet. 2019;60(3-4):283-289. PubMed PMID: 31414379.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Genetic diversity and population structure analysis of synthetic and bread wheat accessions in Western Siberia. AU - Bhatta,Madhav, AU - Shamanin,Vladimir, AU - Shepelev,Sergey, AU - Baenziger,P Stephen, AU - Pozherukova,Violetta, AU - Pototskaya,Inna, AU - Morgounov,Alexey, Y1 - 2019/08/14/ PY - 2019/04/24/received PY - 2019/08/05/accepted PY - 2019/07/11/revised PY - 2019/8/16/pubmed PY - 2020/2/11/medline PY - 2019/8/16/entrez KW - Analysis of molecular variance KW - Genomic diversity KW - Genotyping-by-sequencing KW - Population differentiation KW - SNP markers KW - Triticum aestivum SP - 283 EP - 289 JF - Journal of applied genetics JO - J Appl Genet VL - 60 IS - 3-4 N2 - Recurrent selection and intercrossing between best of the best parents in each generation of breeding cycle resulted in a narrower genetic diversity in elite wheat (Triticum aestivum L.) germplasm. Therefore, we investigated diverse source of 143 synthetic and bread wheat accessions for identifying potentially rich genetic resources for improving the genetic diversity in wheat. This study identified 47,526 genotyping-by-sequencing-derived SNP markers that were nearly evenly distributed across three genomes of wheat. The population structure analysis identified three distinct clusters (Japan synthetics, CIMMYT synthetics, and bread wheat) of wheat genotypes on the basis of type and geographical origin of wheat accessions. Population differentiation using analysis of molecular variance indicated 21% of the total genetic variance among subgroups and the remainder within subgroups. This study also identified that the Japan synthetic group was the most divergent group compared with other subgroups. The genetic diversity comparisons between synthetic and bread wheat lines showed that the gene diversity of synthetic wheat was 33% higher than bread wheat accessions, indicating the potential use of these lines for broadening the genetic diversity of modern wheat cultivars. The results from this study will be helpful in further understanding genomic features of wheat and facilitate their use in wheat breeding programs. SN - 2190-3883 UR - https://www.unboundmedicine.com/medline/citation/31414379/Genetic_diversity_and_population_structure_analysis_of_synthetic_and_bread_wheat_accessions_in_Western_Siberia_ L2 - https://dx.doi.org/10.1007/s13353-019-00514-x DB - PRIME DP - Unbound Medicine ER -