A GENE REGULATORY NETWORK MODEL FOR VERNALIZATION AND SEASONAL FLOWERING RESPONSE IN WINTER WHEAT AND BARLEY
The transition from vegetative to reproductive development in wheat is regulated by seasonal cues, including vernalization and photoperiod. Here we present a simple logical model of the wheat development gene network. Vernalization accelerates flowering in winter cereals. It is regulated mainly by t...
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| Format: | Article |
| Language: | English |
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Siberian Branch of the Russian Academy of Sciences, Federal Research Center Institute of Cytology and Genetics, The Vavilov Society of Geneticists and Breeders
2014-12-01
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| Series: | Вавиловский журнал генетики и селекции |
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| Online Access: | https://vavilov.elpub.ru/jour/article/view/28 |
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| author | I. L. Stepanenko O. G. Smirnova I. I. Titov |
| author_facet | I. L. Stepanenko O. G. Smirnova I. I. Titov |
| author_sort | I. L. Stepanenko |
| collection | DOAJ |
| description | The transition from vegetative to reproductive development in wheat is regulated by seasonal cues, including vernalization and photoperiod. Here we present a simple logical model of the wheat development gene network. Vernalization accelerates flowering in winter cereals. It is regulated mainly by the vernalization genes VRN1, VRN2, and VRN3. After vernalization, VRN1 downregulates the VRN2 flowering repressor, thereby increasing the VRN3 level. The expression of VRN3 promotes further increases in the VRN1 transcription level, generating a positive feedback loop, which enhances VRN1 transcription to a threshold level required to initiate flowering. The products of the PPD1 and CO2 photoperiod genes increase VRN3 expression under long daylight conditions. Seasonal changes in day length are perceived by plant photoreceptors and transmitted to the circadian clock to modulate flowering time. Here we integrate data on vernalization and photoperiod genes in a gene network. Using a synchronous Boolean model, we have simulated the network dynamics. This model can be useful to test the coherence of experimental data and to hypothesize gene interactions that remain to be discovered. |
| format | Article |
| id | doaj-art-1b5142e277ae4157993b233b73cf1aec |
| institution | Kabale University |
| issn | 2500-3259 |
| language | English |
| publishDate | 2014-12-01 |
| publisher | Siberian Branch of the Russian Academy of Sciences, Federal Research Center Institute of Cytology and Genetics, The Vavilov Society of Geneticists and Breeders |
| record_format | Article |
| series | Вавиловский журнал генетики и селекции |
| spelling | doaj-art-1b5142e277ae4157993b233b73cf1aec2025-02-01T09:57:58ZengSiberian Branch of the Russian Academy of Sciences, Federal Research Center Institute of Cytology and Genetics, The Vavilov Society of Geneticists and BreedersВавиловский журнал генетики и селекции2500-32592014-12-011619910612A GENE REGULATORY NETWORK MODEL FOR VERNALIZATION AND SEASONAL FLOWERING RESPONSE IN WINTER WHEAT AND BARLEYI. L. Stepanenko0O. G. Smirnova1I. I. Titov2Institute of Cytology and Genetics, SB RAS, Novosibirsk, RussiaInstitute of Cytology and Genetics, SB RAS, Novosibirsk, RussiaInstitute of Cytology and Genetics, SB RAS, Novosibirsk, RussiaThe transition from vegetative to reproductive development in wheat is regulated by seasonal cues, including vernalization and photoperiod. Here we present a simple logical model of the wheat development gene network. Vernalization accelerates flowering in winter cereals. It is regulated mainly by the vernalization genes VRN1, VRN2, and VRN3. After vernalization, VRN1 downregulates the VRN2 flowering repressor, thereby increasing the VRN3 level. The expression of VRN3 promotes further increases in the VRN1 transcription level, generating a positive feedback loop, which enhances VRN1 transcription to a threshold level required to initiate flowering. The products of the PPD1 and CO2 photoperiod genes increase VRN3 expression under long daylight conditions. Seasonal changes in day length are perceived by plant photoreceptors and transmitted to the circadian clock to modulate flowering time. Here we integrate data on vernalization and photoperiod genes in a gene network. Using a synchronous Boolean model, we have simulated the network dynamics. This model can be useful to test the coherence of experimental data and to hypothesize gene interactions that remain to be discovered.https://vavilov.elpub.ru/jour/article/view/28wheatbarleyvrn1vrn2vrn3vernalizationphotoperiodday lengthcircadian rhythmfloweringgene networksynchronous boolean model |
| spellingShingle | I. L. Stepanenko O. G. Smirnova I. I. Titov A GENE REGULATORY NETWORK MODEL FOR VERNALIZATION AND SEASONAL FLOWERING RESPONSE IN WINTER WHEAT AND BARLEY Вавиловский журнал генетики и селекции wheat barley vrn1 vrn2 vrn3 vernalization photoperiod day length circadian rhythm flowering gene network synchronous boolean model |
| title | A GENE REGULATORY NETWORK MODEL FOR VERNALIZATION AND SEASONAL FLOWERING RESPONSE IN WINTER WHEAT AND BARLEY |
| title_full | A GENE REGULATORY NETWORK MODEL FOR VERNALIZATION AND SEASONAL FLOWERING RESPONSE IN WINTER WHEAT AND BARLEY |
| title_fullStr | A GENE REGULATORY NETWORK MODEL FOR VERNALIZATION AND SEASONAL FLOWERING RESPONSE IN WINTER WHEAT AND BARLEY |
| title_full_unstemmed | A GENE REGULATORY NETWORK MODEL FOR VERNALIZATION AND SEASONAL FLOWERING RESPONSE IN WINTER WHEAT AND BARLEY |
| title_short | A GENE REGULATORY NETWORK MODEL FOR VERNALIZATION AND SEASONAL FLOWERING RESPONSE IN WINTER WHEAT AND BARLEY |
| title_sort | gene regulatory network model for vernalization and seasonal flowering response in winter wheat and barley |
| topic | wheat barley vrn1 vrn2 vrn3 vernalization photoperiod day length circadian rhythm flowering gene network synchronous boolean model |
| url | https://vavilov.elpub.ru/jour/article/view/28 |
| work_keys_str_mv | AT ilstepanenko ageneregulatorynetworkmodelforvernalizationandseasonalfloweringresponseinwinterwheatandbarley AT ogsmirnova ageneregulatorynetworkmodelforvernalizationandseasonalfloweringresponseinwinterwheatandbarley AT iititov ageneregulatorynetworkmodelforvernalizationandseasonalfloweringresponseinwinterwheatandbarley AT ilstepanenko generegulatorynetworkmodelforvernalizationandseasonalfloweringresponseinwinterwheatandbarley AT ogsmirnova generegulatorynetworkmodelforvernalizationandseasonalfloweringresponseinwinterwheatandbarley AT iititov generegulatorynetworkmodelforvernalizationandseasonalfloweringresponseinwinterwheatandbarley |