Make it bloom! CONSTANS contributes to day neutrality in rose

Denoyés-Rothan, B.; Gaston, Amélia; Rothan, Christophe

doi:10.1093/jxb/eraa270

Cited by 4 publications

(2 citation statements)

References 20 publications

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“…Flowering is induced by reduced daylight in short‐day (SD) species or by increased daylight in long‐day (LD) species. The acquisition of photoperiod insensitivity in day‐neutral crop species was crucial for extending their range and/or duration of the production period (Soyk et al ., 2017; Denoyes et al ., 2020).…”

Section: Introductionmentioning

confidence: 99%

The FveFT2 florigen/FveTFL1 antiflorigen balance is critical for the control of seasonal flowering in strawberry while FveFT3 modulates axillary meristem fate and yield

et al. 2021

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Section: Introductionmentioning

confidence: 99%

The FveFT2 florigen/FveTFL1 antiflorigen balance is critical for the control of seasonal flowering in strawberry while FveFT3 modulates axillary meristem fate and yield

et al. 2021

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“…The primarily single copy COL genes can function as photoperiodic sensors in long-day (LD) plants such as A. thaliana , neutral-day (ND) plants like Rosa chinensis (Balcerowicz 2021 ; Denoyes et al 2020 ; Lu et al 2020 ), or in short-day (SD) plants, such as Chenopodium rubrum (Drabešová et al 2014 ), Hordeum vulgare (Campoli et al 2012 ; Griffiths et al 2003 ; Turner et al 2005 ), Oryza sativa (Hayama et al 2003 ; Yano et al 2000 ), and Solanum tuberosum (González-Schain et al 2012 ). Also, COL genes are linked to other day length-dependent developmental processes such as tuberization in potato (González-Schain et al 2012 ), bud dormancy and metabolism in poplar (Böhlenius et al 2006 ; Hsu et al 2012 ), and lateral root formation and shoot branching in Arabidopsis (Datta et al 2005 ).…”

Section: Discussionmentioning

confidence: 99%

Evolution of major flowering pathway integrators in Orchidaceae

Madrigal,

Alzate,

Pabón-Mora

2023

Plant Reprod

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The Orchidaceae is a mega-diverse plant family with ca. 29,000 species with a large variety of life forms that can colonize transitory habitats. Despite this diversity, little is known about their flowering integrators in response to specific environmental factors. During the reproductive transition in flowering plants a vegetative apical meristem (SAM) transforms into an inflorescence meristem (IM) that forms bracts and flowers. In model grasses, like rice, a flowering genetic regulatory network (FGRN) controlling reproductive transitions has been identified, but little is known in the Orchidaceae. In order to analyze the players of the FRGN in orchids, we performed comprehensive phylogenetic analyses of CONSTANS-like/CONSTANS-like 4 (COL/COL4), FLOWERING LOCUS D (FD), FLOWERING LOCUS C/FRUITFULL (FLC/FUL) and SUPRESSOR OF OVEREXPRESSION OF CONSTANS 1 (SOC1) gene lineages. In addition to PEBP and AGL24/SVP genes previously analyzed, here we identify an increase of orchid homologs belonging to COL4, and FUL gene lineages in comparison with other monocots, including grasses, due to orchid-specific gene lineage duplications. Contrariwise, local duplications in Orchidaceae are less frequent in the COL, FD and SOC1 gene lineages, which points to a retention of key functions under strong purifying selection in essential signaling factors. We also identified changes in the protein sequences after such duplications, variation in the evolutionary rates of resulting paralogous clades and targeted expression of isolated homologs in different orchids. Interestingly, vernalization-response genes like VERNALIZATION1 (VRN1) and FLOWERING LOCUS C (FLC) are completely lacking in orchids, or alternatively are reduced in number, as is the case of VERNALIZATION2/GHD7 (VRN2). Our findings point to non-canonical factors sensing temperature changes in orchids during reproductive transition. Expression data of key factors gathered from Elleanthus auratiacus, a terrestrial orchid in high Andean mountains allow us to characterize which copies are actually active during flowering. Altogether, our data lays down a comprehensive framework to assess gene function of a restricted number of homologs identified more likely playing key roles during the flowering transition, and the changes of the FGRN in neotropical orchids in comparison with temperate grasses.

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Mungbean VrCOL1 regulates flowering time under short-day conditions in Arabidopsis

Zhang

Dong

Wang

et al. 2022

Plant Cell Tiss Organ Cult

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Make it bloom! CONSTANS contributes to day neutrality in rose

Abstract: This article comments on: Lu J, Sun J, Jiang A, Bai M, Fan C, Liu J, Ning G, Wang C. 2020. Alternate expression of CONSTANS-LIKE 4 in short days and CONSTANS in long days facilitates day-neutral response in Rosa chinensis. Journal of Experimental Botany 71, 4057–4068

Cited by 4 publications

References 20 publications

The FveFT2 florigen/FveTFL1 antiflorigen balance is critical for the control of seasonal flowering in strawberry while FveFT3 modulates axillary meristem fate and yield

The FveFT2 florigen/FveTFL1 antiflorigen balance is critical for the control of seasonal flowering in strawberry while FveFT3 modulates axillary meristem fate and yield

Evolution of major flowering pathway integrators in Orchidaceae

Mungbean VrCOL1 regulates flowering time under short-day conditions in Arabidopsis

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