Phenology and Floret Development as Affected by the Interaction between <i>Eps-7D</i> and <i>Ppd-D1</i>
Earliness per se (<i>Eps</i>) genes may play a critical role in further improving wheat adaptation and fine-tuning wheat development to cope with climate change. There are only few studies on the detailed effect of <i>Eps</i> on wheat development and fewer on the interaction...
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MDPI AG
2021-03-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/10/3/533 |
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| author | Priyanka A. Basavaraddi Roxana Savin Stefano Bencivenga Simon Griffiths Gustavo A. Slafer |
| author_facet | Priyanka A. Basavaraddi Roxana Savin Stefano Bencivenga Simon Griffiths Gustavo A. Slafer |
| author_sort | Priyanka A. Basavaraddi |
| collection | DOAJ |
| description | Earliness per se (<i>Eps</i>) genes may play a critical role in further improving wheat adaptation and fine-tuning wheat development to cope with climate change. There are only few studies on the detailed effect of <i>Eps</i> on wheat development and fewer on the interaction of <i>Eps</i> with the environment and other genes determining time to anthesis. Furthermore, it seems relevant to study every newly discovered <i>Eps</i> gene and its probable interactions as the mechanisms and detailed effects of each <i>Eps</i> may be quite different. In the present study, we evaluated NILs differing in the recently identified <i>Eps-7D</i> as well as in <i>Ppd-D1</i> at three temperature regimes (9, 15 and 18 °C) under short day. The effect of <i>Eps-7D</i> on time to anthesis as well as on its component phases varied both qualitatively and quantitatively depending on the allelic status of <i>Ppd-D1</i> and temperature, being larger in a photoperiod-sensitive background. A more noticeable effect of <i>Eps-7D</i> (when combined with <i>Ppd-D1b</i>) was realised during the late reproductive phase. Consequently, the final leaf number was not clearly altered by <i>Eps-7D</i>, while floret development of the labile florets (florets 2 and 3 in this case, depending on the particular spikelet) was favoured by the action of the <i>Eps-7D-late</i> allele, increasing the likelihood of particular florets to become fertile, and consequently, improving spike fertility when combined with <i>Ppd-D1b</i>. |
| first_indexed | 2024-03-10T13:18:55Z |
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| institution | Directory Open Access Journal |
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| language | English |
| last_indexed | 2024-03-10T13:18:55Z |
| publishDate | 2021-03-01 |
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| record_format | Article |
| series | Plants |
| spelling | doaj.art-f7de5d59314f4211a5746d2c829df9652023-11-21T10:11:32ZengMDPI AGPlants2223-77472021-03-0110353310.3390/plants10030533Phenology and Floret Development as Affected by the Interaction between <i>Eps-7D</i> and <i>Ppd-D1</i>Priyanka A. Basavaraddi0Roxana Savin1Stefano Bencivenga2Simon Griffiths3Gustavo A. Slafer4Department of Crop and Forest Sciences-AGROTECNIO CERCA Center, University of Lleida, Av. R. Roure 191, 25198 Lleida, SpainDepartment of Crop and Forest Sciences-AGROTECNIO CERCA Center, University of Lleida, Av. R. Roure 191, 25198 Lleida, SpainJohn Innes Centre, Norwich Research Park, Colney Ln, Norwich NR4 7UH, UKJohn Innes Centre, Norwich Research Park, Colney Ln, Norwich NR4 7UH, UKDepartment of Crop and Forest Sciences-AGROTECNIO CERCA Center, University of Lleida, Av. R. Roure 191, 25198 Lleida, SpainEarliness per se (<i>Eps</i>) genes may play a critical role in further improving wheat adaptation and fine-tuning wheat development to cope with climate change. There are only few studies on the detailed effect of <i>Eps</i> on wheat development and fewer on the interaction of <i>Eps</i> with the environment and other genes determining time to anthesis. Furthermore, it seems relevant to study every newly discovered <i>Eps</i> gene and its probable interactions as the mechanisms and detailed effects of each <i>Eps</i> may be quite different. In the present study, we evaluated NILs differing in the recently identified <i>Eps-7D</i> as well as in <i>Ppd-D1</i> at three temperature regimes (9, 15 and 18 °C) under short day. The effect of <i>Eps-7D</i> on time to anthesis as well as on its component phases varied both qualitatively and quantitatively depending on the allelic status of <i>Ppd-D1</i> and temperature, being larger in a photoperiod-sensitive background. A more noticeable effect of <i>Eps-7D</i> (when combined with <i>Ppd-D1b</i>) was realised during the late reproductive phase. Consequently, the final leaf number was not clearly altered by <i>Eps-7D</i>, while floret development of the labile florets (florets 2 and 3 in this case, depending on the particular spikelet) was favoured by the action of the <i>Eps-7D-late</i> allele, increasing the likelihood of particular florets to become fertile, and consequently, improving spike fertility when combined with <i>Ppd-D1b</i>.https://www.mdpi.com/2223-7747/10/3/533spike fertilityleaf appearancespikelet primordiaearliness per sephotoperiod |
| spellingShingle | Priyanka A. Basavaraddi Roxana Savin Stefano Bencivenga Simon Griffiths Gustavo A. Slafer Phenology and Floret Development as Affected by the Interaction between <i>Eps-7D</i> and <i>Ppd-D1</i> Plants spike fertility leaf appearance spikelet primordia earliness per se photoperiod |
| title | Phenology and Floret Development as Affected by the Interaction between <i>Eps-7D</i> and <i>Ppd-D1</i> |
| title_full | Phenology and Floret Development as Affected by the Interaction between <i>Eps-7D</i> and <i>Ppd-D1</i> |
| title_fullStr | Phenology and Floret Development as Affected by the Interaction between <i>Eps-7D</i> and <i>Ppd-D1</i> |
| title_full_unstemmed | Phenology and Floret Development as Affected by the Interaction between <i>Eps-7D</i> and <i>Ppd-D1</i> |
| title_short | Phenology and Floret Development as Affected by the Interaction between <i>Eps-7D</i> and <i>Ppd-D1</i> |
| title_sort | phenology and floret development as affected by the interaction between i eps 7d i and i ppd d1 i |
| topic | spike fertility leaf appearance spikelet primordia earliness per se photoperiod |
| url | https://www.mdpi.com/2223-7747/10/3/533 |
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