Molecular Basis of Age-Dependent Vernalization in
            <i>Cardamine flexuosa</i>

Zhou, Chuan‐Miao; Zhang, Tian‐Qi; Wang, Xi; Yu, Sha; Lian, Heng; Tang, Hongbo; Feng, Zhengyan; Zozomová‐Lihová, Judita; Wang, Jiawei

doi:10.1126/science.1234340

Cited by 161 publications

(120 citation statements)

References 42 publications

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“…2013; Zhou et al . 2013). Consistent with this conclusion, A. montbretiana and A. auriculata behaved in a similar way to annual A. thaliana and flowered in response to vernalization treatments given within 1 week of germination.…”

Section: Discussionmentioning

confidence: 99%

Divergence of annual and perennial species in the Brassicaceae and the contribution of cis‐acting variation at FLC orthologues

Kiefer

Severing

Karl³

et al. 2017

Molecular Ecology

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Variation in life history contributes to reproductive success in different environments. Divergence of annual and perennial angiosperm species is an extreme example that has occurred frequently. Perennials survive for several years and restrict the duration of reproduction by cycling between vegetative growth and flowering, whereas annuals live for 1 year and flower once. We used the tribe Arabideae (Brassicaceae) to study the divergence of seasonal flowering behaviour among annual and perennial species. In perennial Brassicaceae, orthologues of FLOWERING LOCUS C (FLC), a floral inhibitor in Arabidopsis thaliana, are repressed by winter cold and reactivated in spring conferring seasonal flowering patterns, whereas in annuals, they are stably repressed by cold. We isolated FLC orthologues from three annual and two perennial Arabis species and found that the duplicated structure of the A. alpina locus is not required for perenniality. The expression patterns of the genes differed between annuals and perennials, as observed among Arabidopsis species, suggesting a broad relevance of these patterns within the Brassicaceae. Also analysis of plants derived from an interspecies cross of A. alpina and annual A. montbretiana demonstrated that cis‐regulatory changes in FLC orthologues contribute to their different transcriptional patterns. Sequence comparisons of FLC orthologues from annuals and perennials in the tribes Arabideae and Camelineae identified two regulatory regions in the first intron whose sequence variation correlates with divergence of the annual and perennial expression patterns. Thus, we propose that related cis‐acting changes in FLC orthologues occur independently in different tribes of the Brassicaceae during life history evolution.

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Section: Discussionmentioning

confidence: 99%

Divergence of annual and perennial species in the Brassicaceae and the contribution of cis‐acting variation at FLC orthologues

Kiefer

Severing

Karl³

et al. 2017

Molecular Ecology

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“…Fv SOC1 Activates Fv TFL1 to Repress Flowering under LDs SOC1 and SOC1-like genes encode MADS box transcription factors that are reported to function as floral activators in annual LD and SD plants (Menzel et al, 1996;Lee et al, 2000;Ferrario et al, 2004;Lee et al, 2004) and in a perennial species Cardamine flexuosa (Zhou et al, 2013). Here, we show that in strawberry, which is a seasonal flowering perennial SD plant (SD strawberry), the overexpression of the strawberry ortholog of SOC1 suppresses photoperiodic flowering, whereas Fv SOC1-RNAi plants flower continuously without inductive SD treatment, similarly to perpetual flowering mutants, which lack the functional floral repressor Fv TFL1 (Figures 3A to 3D; Iwata et al, 2012;Koskela et al, 2012).…”

Section: Discussionmentioning

confidence: 99%

TheFragaria vescaHomolog of SUPPRESSOR OF OVEREXPRESSION OF CONSTANS1 Represses Flowering and Promotes Vegetative Growth

et al. 2013

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In the annual long-day plant Arabidopsis thaliana, SUPPRESSOR OF OVEREXPRESSION OF CONSTANS1 (SOC1) integrates endogenous and environmental signals to promote flowering. We analyzed the function and regulation of the SOC1 homolog (Fragaria vesca [Fv] SOC1) in the perennial short-day plant woodland strawberry (Fragaria vesca). We found that Fv SOC1 overexpression represses flower initiation under inductive short days, whereas its silencing causes continuous flowering in both short days and noninductive long days, similar to mutants in the floral repressor Fv TERMINAL FLOWER1 (Fv TFL1). Molecular analysis of these transgenic lines revealed that Fv SOC1 activates Fv TFL1 in the shoot apex, leading to the repression of flowering in strawberry. In parallel, Fv SOC1 regulates the differentiation of axillary buds to runners or axillary leaf rosettes, probably through the activation of gibberellin biosynthetic genes. We also demonstrated that Fv SOC1 is regulated by photoperiod and Fv FLOWERING LOCUS T1, suggesting that it plays a central role in the photoperiodic control of both generative and vegetative growth in strawberry. In conclusion, we propose that Fv SOC1 is a signaling hub that regulates yearly cycles of vegetative and generative development through separate genetic pathways.

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“…apple) need to reach a certain age to gain the competence to flower (Poethig, 2013). In the Brassicaceae, the juvenile-to-adult phase transition enhances the flowering response to inductive long days (Matsoukas et al, 2013) or vernalization (Bergonzi et al, 2013;Zhou et al, 2013).…”

Section: Juvenile-to-adult Phase Transitionmentioning

confidence: 99%

Transitioning to the Next Phase: The Role of Sugar Signaling throughout the Plant Life Cycle

Wingler

2017

Plant Physiol.

141

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Molecular Basis of Age-Dependent Vernalization in Cardamine flexuosa

Cited by 161 publications

References 42 publications

Divergence of annual and perennial species in the Brassicaceae and the contribution of cis‐acting variation at FLC orthologues

Divergence of annual and perennial species in the Brassicaceae and the contribution of cis‐acting variation at FLC orthologues

TheFragaria vescaHomolog of SUPPRESSOR OF OVEREXPRESSION OF CONSTANS1 Represses Flowering and Promotes Vegetative Growth

Transitioning to the Next Phase: The Role of Sugar Signaling throughout the Plant Life Cycle

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