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Reference Detail
| Reference | ||
|---|---|---|
| Author | Osnato M., Matias-Hernandez L., Aguilar-Jaramillo AE., Kater M.M., Pelaz S. | |
| Title | Genes of the <i>RAV</i> Family Control Heading Date and Carpel Development in Rice. | |
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Abstract: In plants, correct formation of reproductive organs is critical for successful seedset and perpetuation of the species. Plants have evolved different molecular mechanisms to coordinate flower and seed development at the proper time of the year. Among the plant-specific RELATED TO ABI3 AND VP1 (RAV) family of transcription factors, only TEMPRANILLO1 (TEM1) and TEM2 have been shown to affect reproductive development in Arabidopsis (<i>Arabidopsis thaliana</i>). They negatively regulate the floral transition through direct repression of <i>FLOWERING LOCUS T</i> and <i>GIBBERELLIN 3-OXIDASE1/2</i>, encoding major components of the florigen. Here we identify <i>RAV</i> genes from rice (<i>Oryza sativa</i>), and unravel their regulatory roles in key steps of reproductive development. Our data strongly suggest that, like TEMs, OsRAV9/OsTEM1 has a conserved function as a repressor of photoperiodic flowering upstream of the floral activators <i>OsMADS14</i> and <i>Hd3a</i>, through a mechanism reminiscent of that one underlying floral transition in temperate cereals. Furthermore, <i>OsRAV11</i> and <i>OsRAV12</i> may have acquired a new function in the differentiation of the carpel and the control of seed size, acting downstream of floral homeotic factors. Alternatively, this function may have been lost in Arabidopsis. Our data reveal conservation of <i>RAV</i> gene function in the regulation of flowering time in monocotyledonous and dicotyledonous plants, but also unveil roles in the development of rice gynoecium. |
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| Journal | Plant Physiol. | |
| Country | Spain | |
| Volume | 183(4) | |
| Pages | 1663-1680 | |
| Year | 2020 | |
| PubMed ID | 32554473 | |
| PubMed Central ID | - | |
| DOI | 10.1104/pp.20.00562 | |
| URL | - | |
| Relation | ||
| Gene | AP2/EREBP127 AP2/EREBP129 AP2/EREBP77 AP2/EREBP96 EF1 HD3A LHS1 MADS13 MADS18 MADS50 MADS51 PAP2 RAP1A RAP1B | |
| INSD | - | |
| Strain | Wild Core Collection | - |
| Induced Mutation Lines(NIG Collection) | - | |
| Sterile Seed Strain | - | |
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Lethal Embryo Mutantion Strain |
- | |
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Stages in Each Organ - Muant Lines (Gene) |
- | |
| Cultivated Varieties(NIG Collection) | - | |
| Stages in Each Organ | - | |
