SEASONAL CONTROL OF TUBERIZATION IN POTATO: Conserved Elements with the Flowering Response
- 1 June 2006
- journal article
- review article
- Published by Annual Reviews in Annual Review of Plant Biology
- Vol. 57 (1), 151-180
- https://doi.org/10.1146/annurev.arplant.57.032905.105224
Abstract
Fluctuations in day length determine the time to flower in many plants and in potato are critical to promote differentiation of tubers. Day length is perceived in the leaves and under inductive conditions these synthesize a systemic signal that is transported to the underground stolons to induce tuber development. Flowering tobacco shoots grafted into potato stocks promote tuberization in the stocks, indicating that the floral and tuber-inducing signals might be similar. We describe recent progress in the identification of the molecular mechanisms underlying day-length recognition in potato. Evidence has been obtained for a conserved function of the potato orthologs of the CONSTANS (CO) and FLOWERING LOCUS T (FT) proteins in tuberization control under short days (SDs). These observations indicate that common regulatory pathways are involved in both flowering and tuberization photoperiodic responses in plants.Keywords
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