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The Haplotype-Based Analysis of Aegilops tauschii Introgression Into Hard Red Winter Wheat and Its Impact on Productivity Traits.
Front Plant Sci. 2021; 12:716955.FP

Abstract

The introgression from wild relatives have a great potential to broaden the availability of beneficial allelic diversity for crop improvement in breeding programs. Here, we assessed the impact of the introgression from 21 diverse accessions of Aegilops tauschii, the diploid ancestor of the wheat D genome, into 6 hard red winter wheat cultivars on yield and yield component traits. We used 5.2 million imputed D genome SNPs identified by the whole-genome sequencing of parental lines and the sequence-based genotyping of introgression population, including 351 BC1F3:5 lines. Phenotyping data collected from the irrigated and non-irrigated field trials revealed that up to 23% of the introgression lines (ILs) produce more grain than the parents and check cultivars. Based on 16 yield stability statistics, the yield of 12 ILs (3.4%) was stable across treatments, years, and locations; 5 of these lines were also high yielding lines, producing 9.8% more grain than the average yield of check cultivars. The most significant SNP- and haplotype-trait associations were identified on chromosome arms 2DS and 6DL for the spikelet number per spike (SNS), on chromosome arms 2DS, 3DS, 5DS, and 7DS for grain length (GL) and on chromosome arms 1DL, 2DS, 6DL, and 7DS for grain width (GW). The introgression of haplotypes from A. tauschii parents was associated with an increase in SNS, which was positively correlated with a heading date (HD), whereas the haplotypes from hexaploid wheat parents were associated with an increase in GW. We show that the haplotypes on 2DS associated with an increase in the spikelet number and HD are linked with multiple introgressed alleles of Ppd-D1 identified by the whole-genome sequencing of A. tauschii parents. Meanwhile, some introgressed haplotypes exhibited significant pleiotropic effects with the direction of effects on the yield component traits being largely consistent with the previously reported trade-offs, there were haplotype combinations associated with the positive trends in yield. The characterized repertoire of the introgressed haplotypes derived from A. tauschii accessions with the combined positive effects on yield and yield component traits in elite germplasm provides a valuable source of alleles for improving the productivity of winter wheat by optimizing the contribution of component traits to yield.

Authors+Show Affiliations

Department of Plant Pathology, Kansas State University, Manhattan, KS, United States.Department of Plant Pathology, Kansas State University, Manhattan, KS, United States.Department of Agronomy, Kansas State University, Manhattan, KS, United States.Department of Agronomy, Kansas State University, Manhattan, KS, United States.Department of Plant Pathology, Kansas State University, Manhattan, KS, United States.Department of Plant Pathology, Kansas State University, Manhattan, KS, United States.Department of Plant Pathology, Kansas State University, Manhattan, KS, United States.Department of Plant Pathology, Kansas State University, Manhattan, KS, United States.Department of Plant Pathology, Kansas State University, Manhattan, KS, United States.Department of Plant Pathology, Kansas State University, Manhattan, KS, United States.Integrated Genomics Facility, Kansas State University, Manhattan, KS, United States.Department of Plant Pathology, Kansas State University, Manhattan, KS, United States. United States Department of Agriculture, Agricultural Research Service Hard Winter Wheat Genetics Research Unit, Manhattan, KS, United States.Department of Agronomy, Kansas State University, Manhattan, KS, United States.Department of Plant Pathology, Kansas State University, Manhattan, KS, United States.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

34484280

Citation

Nyine, Moses, et al. "The Haplotype-Based Analysis of Aegilops Tauschii Introgression Into Hard Red Winter Wheat and Its Impact On Productivity Traits." Frontiers in Plant Science, vol. 12, 2021, p. 716955.
Nyine M, Adhikari E, Clinesmith M, et al. The Haplotype-Based Analysis of Aegilops tauschii Introgression Into Hard Red Winter Wheat and Its Impact on Productivity Traits. Front Plant Sci. 2021;12:716955.
Nyine, M., Adhikari, E., Clinesmith, M., Aiken, R., Betzen, B., Wang, W., Davidson, D., Yu, Z., Guo, Y., He, F., Akhunova, A., Jordan, K. W., Fritz, A. K., & Akhunov, E. (2021). The Haplotype-Based Analysis of Aegilops tauschii Introgression Into Hard Red Winter Wheat and Its Impact on Productivity Traits. Frontiers in Plant Science, 12, 716955. https://doi.org/10.3389/fpls.2021.716955
Nyine M, et al. The Haplotype-Based Analysis of Aegilops Tauschii Introgression Into Hard Red Winter Wheat and Its Impact On Productivity Traits. Front Plant Sci. 2021;12:716955. PubMed PMID: 34484280.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The Haplotype-Based Analysis of Aegilops tauschii Introgression Into Hard Red Winter Wheat and Its Impact on Productivity Traits. AU - Nyine,Moses, AU - Adhikari,Elina, AU - Clinesmith,Marshall, AU - Aiken,Robert, AU - Betzen,Bliss, AU - Wang,Wei, AU - Davidson,Dwight, AU - Yu,Zitong, AU - Guo,Yuanwen, AU - He,Fei, AU - Akhunova,Alina, AU - Jordan,Katherine W, AU - Fritz,Allan K, AU - Akhunov,Eduard, Y1 - 2021/08/17/ PY - 2021/05/29/received PY - 2021/07/20/accepted PY - 2021/9/6/entrez PY - 2021/9/7/pubmed PY - 2021/9/7/medline KW - Aegilops tauschii KW - genotype imputation KW - grain yield KW - haplotypes KW - wheat KW - whole genome sequencing KW - wild relative introgression KW - yield component traits SP - 716955 EP - 716955 JF - Frontiers in plant science JO - Front Plant Sci VL - 12 N2 - The introgression from wild relatives have a great potential to broaden the availability of beneficial allelic diversity for crop improvement in breeding programs. Here, we assessed the impact of the introgression from 21 diverse accessions of Aegilops tauschii, the diploid ancestor of the wheat D genome, into 6 hard red winter wheat cultivars on yield and yield component traits. We used 5.2 million imputed D genome SNPs identified by the whole-genome sequencing of parental lines and the sequence-based genotyping of introgression population, including 351 BC1F3:5 lines. Phenotyping data collected from the irrigated and non-irrigated field trials revealed that up to 23% of the introgression lines (ILs) produce more grain than the parents and check cultivars. Based on 16 yield stability statistics, the yield of 12 ILs (3.4%) was stable across treatments, years, and locations; 5 of these lines were also high yielding lines, producing 9.8% more grain than the average yield of check cultivars. The most significant SNP- and haplotype-trait associations were identified on chromosome arms 2DS and 6DL for the spikelet number per spike (SNS), on chromosome arms 2DS, 3DS, 5DS, and 7DS for grain length (GL) and on chromosome arms 1DL, 2DS, 6DL, and 7DS for grain width (GW). The introgression of haplotypes from A. tauschii parents was associated with an increase in SNS, which was positively correlated with a heading date (HD), whereas the haplotypes from hexaploid wheat parents were associated with an increase in GW. We show that the haplotypes on 2DS associated with an increase in the spikelet number and HD are linked with multiple introgressed alleles of Ppd-D1 identified by the whole-genome sequencing of A. tauschii parents. Meanwhile, some introgressed haplotypes exhibited significant pleiotropic effects with the direction of effects on the yield component traits being largely consistent with the previously reported trade-offs, there were haplotype combinations associated with the positive trends in yield. The characterized repertoire of the introgressed haplotypes derived from A. tauschii accessions with the combined positive effects on yield and yield component traits in elite germplasm provides a valuable source of alleles for improving the productivity of winter wheat by optimizing the contribution of component traits to yield. SN - 1664-462X UR - https://www.unboundmedicine.com/medline/citation/34484280/The_Haplotype_Based_Analysis_of_Aegilops_tauschii_Introgression_Into_Hard_Red_Winter_Wheat_and_Its_Impact_on_Productivity_Traits_ L2 - https://doi.org/10.3389/fpls.2021.716955 DB - PRIME DP - Unbound Medicine ER -
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