Population structure, allelic variation at Rht-B1 and Ppd-A1 loci and its effects on agronomic traits in Argentinian durum wheat
Exploring the genetic variability in yield and yield-related traits is essential to continue improving genetic gains. Fifty-nine Argentinian durum wheat cultivars were analyzed for important agronomic traits in three field experiments. The collection was genotyped with 3565 genome-wide SNPs and func...
| Autores principales: | , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
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Springer
2022
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| Acceso en línea: | https://hdl.handle.net/10568/126527 |
| _version_ | 1855521602906619904 |
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| author | Achilli, Ana Laura Roncallo, Pablo Federico Larsen, Adelina Olga Dreisigacker, Susanne Echenique, Viviana |
| author_browse | Achilli, Ana Laura Dreisigacker, Susanne Echenique, Viviana Larsen, Adelina Olga Roncallo, Pablo Federico |
| author_facet | Achilli, Ana Laura Roncallo, Pablo Federico Larsen, Adelina Olga Dreisigacker, Susanne Echenique, Viviana |
| author_sort | Achilli, Ana Laura |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Exploring the genetic variability in yield and yield-related traits is essential to continue improving genetic gains. Fifty-nine Argentinian durum wheat cultivars were analyzed for important agronomic traits in three field experiments. The collection was genotyped with 3565 genome-wide SNPs and functional markers in order to determine the allelic variation at Rht-B1 and Ppd-A1 genes. Population structure analyses revealed the presence of three main groups, composed by old, modern and genotypes with European or CIMMYT ancestry. The photoperiod sensitivity Ppd-A1b allele showed higher frequency (75%) than the insensitivity one Ppd-A1a (GS105). The semi-dwarfism Rht-B1b and the Ppd-A1a (GS105) alleles were associated with increases in harvest index and decreases in plant height, grain protein content and earlier heading date, although only the varieties carrying the Rht-B1 variants showed differences in grain yield. Out of the two main yield components, grain number per plant was affected by allelic variants at Rht-B1 and Ppd-A1 loci, while no differences were observed in thousand kernel weight. The increases in grain number per spike associated with Rht-B1b were attributed to a higher grain number per spikelet, whereas Ppd-A1a (GS105) was associated with higher grain number per spikelet, but also with lower spikelets per spike. |
| format | Journal Article |
| id | CGSpace126527 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace1265272025-11-06T13:04:37Z Population structure, allelic variation at Rht-B1 and Ppd-A1 loci and its effects on agronomic traits in Argentinian durum wheat Achilli, Ana Laura Roncallo, Pablo Federico Larsen, Adelina Olga Dreisigacker, Susanne Echenique, Viviana alleles genetics genotypes phenotypes plant genetics wheat Exploring the genetic variability in yield and yield-related traits is essential to continue improving genetic gains. Fifty-nine Argentinian durum wheat cultivars were analyzed for important agronomic traits in three field experiments. The collection was genotyped with 3565 genome-wide SNPs and functional markers in order to determine the allelic variation at Rht-B1 and Ppd-A1 genes. Population structure analyses revealed the presence of three main groups, composed by old, modern and genotypes with European or CIMMYT ancestry. The photoperiod sensitivity Ppd-A1b allele showed higher frequency (75%) than the insensitivity one Ppd-A1a (GS105). The semi-dwarfism Rht-B1b and the Ppd-A1a (GS105) alleles were associated with increases in harvest index and decreases in plant height, grain protein content and earlier heading date, although only the varieties carrying the Rht-B1 variants showed differences in grain yield. Out of the two main yield components, grain number per plant was affected by allelic variants at Rht-B1 and Ppd-A1 loci, while no differences were observed in thousand kernel weight. The increases in grain number per spike associated with Rht-B1b were attributed to a higher grain number per spikelet, whereas Ppd-A1a (GS105) was associated with higher grain number per spikelet, but also with lower spikelets per spike. 2022-06-10 2023-01-04T08:01:12Z 2023-01-04T08:01:12Z Journal Article https://hdl.handle.net/10568/126527 en Open Access application/pdf Springer Achilli, A. L., Roncallo, P. F., Larsen, A. O., Dreisigacker, S., & Echenique, V. (2022). Population structure, allelic variation at Rht-B1 and Ppd-A1 loci and its effects on agronomic traits in Argentinian durum wheat. Scientific Reports, 12(1). https://doi.org/10.1038/s41598-022-13563-w |
| spellingShingle | alleles genetics genotypes phenotypes plant genetics wheat Achilli, Ana Laura Roncallo, Pablo Federico Larsen, Adelina Olga Dreisigacker, Susanne Echenique, Viviana Population structure, allelic variation at Rht-B1 and Ppd-A1 loci and its effects on agronomic traits in Argentinian durum wheat |
| title | Population structure, allelic variation at Rht-B1 and Ppd-A1 loci and its effects on agronomic traits in Argentinian durum wheat |
| title_full | Population structure, allelic variation at Rht-B1 and Ppd-A1 loci and its effects on agronomic traits in Argentinian durum wheat |
| title_fullStr | Population structure, allelic variation at Rht-B1 and Ppd-A1 loci and its effects on agronomic traits in Argentinian durum wheat |
| title_full_unstemmed | Population structure, allelic variation at Rht-B1 and Ppd-A1 loci and its effects on agronomic traits in Argentinian durum wheat |
| title_short | Population structure, allelic variation at Rht-B1 and Ppd-A1 loci and its effects on agronomic traits in Argentinian durum wheat |
| title_sort | population structure allelic variation at rht b1 and ppd a1 loci and its effects on agronomic traits in argentinian durum wheat |
| topic | alleles genetics genotypes phenotypes plant genetics wheat |
| url | https://hdl.handle.net/10568/126527 |
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