A Catalog of <i>GNI-A1</i> Genes That Regulate Floret Fertility in a Diverse Bread Wheat Collection
Modifying inflorescence architecture improves grain number and grain weight in bread wheat (<i>Triticum aestivum</i>). Allelic variation in <i>Grain Number Increase 1</i> (<i>GNI-A1</i>) genes, encoding a homeodomain leucine zipper class I transcription factor, in...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-01-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/13/3/330 |
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| author | Shun Sakuma Yoko Yamashita Takako Suzuki Shuhei Nasuda |
| author_facet | Shun Sakuma Yoko Yamashita Takako Suzuki Shuhei Nasuda |
| author_sort | Shun Sakuma |
| collection | DOAJ |
| description | Modifying inflorescence architecture improves grain number and grain weight in bread wheat (<i>Triticum aestivum</i>). Allelic variation in <i>Grain Number Increase 1</i> (<i>GNI-A1</i>) genes, encoding a homeodomain leucine zipper class I transcription factor, influences grain number and yield. However, allelic information about <i>GNI-A1</i> in diverse germplasms remains limited. Here, we investigated <i>GNI-A1</i> alleles in a panel of 252 diverse bread wheat accessions (NBRP core collection and HRO breeder’s panel) by target resequencing. Cultivars carrying the reduced-function allele (105Y) were predominant in the NBRP panel, whereas the 105N functional allele was the major type in the HRO panel. Cultivars with the 105Y allele were distributed in Asian landraces but not in European genotypes. Association analysis demonstrated that floret fertility, together with grain size, were improved in cultivars in the NBRP core collection carrying the 105Y allele. These results imply that different alleles of <i>GNI-A1</i> have been locally selected, with the 105Y allele selected in East Asia and the 105N allele selected in Europe. |
| first_indexed | 2024-03-08T03:50:47Z |
| format | Article |
| id | doaj.art-7560b6ca28524d52aee4ceb9565023e1 |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-08T03:50:47Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-7560b6ca28524d52aee4ceb9565023e12024-02-09T15:20:05ZengMDPI AGPlants2223-77472024-01-0113333010.3390/plants13030330A Catalog of <i>GNI-A1</i> Genes That Regulate Floret Fertility in a Diverse Bread Wheat CollectionShun Sakuma0Yoko Yamashita1Takako Suzuki2Shuhei Nasuda3Faculty of Agriculture, Tottori University, Tottori 680-8553, JapanCentral Agricultural Experiment Station, Hokkaido Research Organization, Naganuma, Hokkaido 069-1395, JapanCentral Agricultural Experiment Station, Hokkaido Research Organization, Naganuma, Hokkaido 069-1395, JapanGraduate School of Agriculture, Kyoto University, Kyoto 606-8502, JapanModifying inflorescence architecture improves grain number and grain weight in bread wheat (<i>Triticum aestivum</i>). Allelic variation in <i>Grain Number Increase 1</i> (<i>GNI-A1</i>) genes, encoding a homeodomain leucine zipper class I transcription factor, influences grain number and yield. However, allelic information about <i>GNI-A1</i> in diverse germplasms remains limited. Here, we investigated <i>GNI-A1</i> alleles in a panel of 252 diverse bread wheat accessions (NBRP core collection and HRO breeder’s panel) by target resequencing. Cultivars carrying the reduced-function allele (105Y) were predominant in the NBRP panel, whereas the 105N functional allele was the major type in the HRO panel. Cultivars with the 105Y allele were distributed in Asian landraces but not in European genotypes. Association analysis demonstrated that floret fertility, together with grain size, were improved in cultivars in the NBRP core collection carrying the 105Y allele. These results imply that different alleles of <i>GNI-A1</i> have been locally selected, with the 105Y allele selected in East Asia and the 105N allele selected in Europe.https://www.mdpi.com/2223-7747/13/3/330grain yieldfloret fertilitywheatcore collectiongenetic resources |
| spellingShingle | Shun Sakuma Yoko Yamashita Takako Suzuki Shuhei Nasuda A Catalog of <i>GNI-A1</i> Genes That Regulate Floret Fertility in a Diverse Bread Wheat Collection Plants grain yield floret fertility wheat core collection genetic resources |
| title | A Catalog of <i>GNI-A1</i> Genes That Regulate Floret Fertility in a Diverse Bread Wheat Collection |
| title_full | A Catalog of <i>GNI-A1</i> Genes That Regulate Floret Fertility in a Diverse Bread Wheat Collection |
| title_fullStr | A Catalog of <i>GNI-A1</i> Genes That Regulate Floret Fertility in a Diverse Bread Wheat Collection |
| title_full_unstemmed | A Catalog of <i>GNI-A1</i> Genes That Regulate Floret Fertility in a Diverse Bread Wheat Collection |
| title_short | A Catalog of <i>GNI-A1</i> Genes That Regulate Floret Fertility in a Diverse Bread Wheat Collection |
| title_sort | catalog of i gni a1 i genes that regulate floret fertility in a diverse bread wheat collection |
| topic | grain yield floret fertility wheat core collection genetic resources |
| url | https://www.mdpi.com/2223-7747/13/3/330 |
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