Mobility of Antiflorigen and PEBP mRNAs in Tomato-Tobacco Heterografts

Huang, Nien‐Chen; Luo, Kai‐Ren; Yu, Tien‐Shin

doi:10.1104/pp.18.00725

Cited by 32 publications

(26 citation statements)

References 60 publications

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“…In tobacco, several recently duplicated FT paralogs that act to delay flowering have mobile transcripts and are capable of binding the tobacco FD paralog, lending support to the hypothesis that they inhibit FT function through competition for activation complex partners (Harig et al , ; N‐C. Huang et al , ). An FT paralog in soybean ( GmFT1a ) may similarly antagonize the action of florigenic FT paralogs (Liu et al , ).…”

Section: Evolution Of Developmental Networkmentioning

confidence: 83%

Evolutionary processes from the perspective of flowering time diversity

Gaudinier

Blackman

2019

New Phytologist

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Summary Although it is well appreciated that genetic studies of flowering time regulation have led to fundamental advances in the fields of molecular and developmental biology, the ways in which genetic studies of flowering time diversity have enriched the field of evolutionary biology have received less attention despite often being equally profound. Because flowering time is a complex, environmentally responsive trait that has critical impacts on plant fitness, crop yield, and reproductive isolation, research into the genetic architecture and molecular basis of its evolution continues to yield novel insights into our understanding of domestication, adaptation, and speciation. For instance, recent studies of flowering time variation have reconstructed how, when, and where polygenic evolution of phenotypic plasticity proceeded from standing variation and de novo mutations; shown how antagonistic pleiotropy and temporally varying selection maintain polymorphisms in natural populations; and provided important case studies of how assortative mating can evolve and facilitate speciation with gene flow. In addition, functional studies have built detailed regulatory networks for this trait in diverse taxa, leading to new knowledge about how and why developmental pathways are rewired and elaborated through evolutionary time.

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Section: Evolution Of Developmental Networkmentioning

confidence: 83%

Evolutionary processes from the perspective of flowering time diversity

Gaudinier

Blackman

2019

New Phytologist

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“…Non‐vascular transport of RNA signals across the graft junction does appear in some species to be transcript specific. For example, tobacco mRNA ( SP11A ) can traverse the graft junction from a tobacco rootstock to a tomato scion, yet tomato mRNA ( SP11A ) fails to traverse the graft junction from a tomato rootstock to tobacco scion (Huang et al 2018). Photosynthates, derived from the scion are another potential grafting signal.…”

Section: Discussionmentioning

confidence: 99%

What drives interspecies graft union success? Exploring the role of phylogenetic relatedness and stem anatomy

Wulf

Reid

Foo

2020

Physiologia Plantarum

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The underlying mechanisms that determine whether two species can form a successful graft union (graft compatibility) remain obscure. Two prominent hypotheses are (1) the more closely related species are, the higher the graft success and (2) the vascular anatomy at the graft junction influences graft success. In this paper these two hypotheses are examined in a systematic way using graft combinations selected from a range of (a) phylogenetically close and more distant legume species, (b) species displaying different germination patterns and (c) scions and rootstocks possessing contrasting stem tissues and vascular patterns. Relatedness of species was not a good predictor of graft compatibility, as vascular reconnection can occur between distantly related species and can fail to occur in some more closely related species. Similarly, neither the stem tissues present at the graft junction nor the vascular anatomy correlated with the success of vascular reconnection. Relatedness and stem anatomy therefore do not appear to be the determining factors in successful vascular reconnection after grafting in legumes. These results are discussed in conjunction with other hypotheses such as the role of auxin.

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“…Consistently, ATC is the antiflorigen expressed in old leaves and transported to the shoot apical meristem in Arabidopsis (Huang et al, 2012). NsCET1, the homolog of ATC in tobacco (Nicotiana sylvestris), is demonstrated to move from leaf to the shoot apex via long distance transport of mRNA molecules (Huang et al, 2018). The Arabidopsis BROTHER OF FT AND TFL1 (BFT) has a TFL1like activity and is expressed in the shoot apical meristem, young leaf and axillary inflorescence meristem (Yoo et al, 2010).…”

Section: Examination Of Genes In Flowering Time Regulationmentioning

confidence: 96%

Gene Expression Profiling of the Shoot Meristematic Tissues in Woodland Strawberry Fragaria vesca

Feng

Cheng

et al. 2019

Front. Plant Sci.

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Fragaria vesca, a wild diploid strawberry, has recently emerged as a model for the cultivated strawberry and other members of the Rosaceae. Differentiation and maintenance of meristems largely determines plant architecture, flower development and ultimately fruit yield. However, in strawberry, our knowledge of molecular regulation of meristems in different developmental context is limited. In this study, we hand dissected three types of tissues than contain meristematic tissues corresponding to shoot apical meristem (SAM), flower meristem (FM), and receptacle meristem (REM), in F. vesca for RNA-seq analyses. A total of 3,009 differentially expressed genes (DEGs) were identified through pairwise comparisons. These DEGs were grouped into nine clusters with dynamic and distinct expression patterns. In these nine clusters, 336 transcription factor genes belong to 46 families were identified; some of which were significantly enriched in FM and REM such as the MADS-box family or in REM such as the B3 family. We found conserved and distinctive expression patterns of totally 149 genes whose homologs regulate flowering time or SAM, leaf, and flower development in other plant species. In addition to the ABCE genes in flower development, new MADS box genes were identified to exhibit differential expression in these different tissues. Additionally, the cytokinin and auxin pathway genes also exhibited distinct expression patterns. The Arabidopsis homeobox gene WUSCHEL (WUS), essential for stem cell maintenance, is expressed in organizing center of meristems. The F. vesca homolog FvWUS1 exhibited a broader expression domain in young strawberry flowers than its Arabidopsis counterpart. Altogether, this work provides a valuable data resource for dissecting gene regulatory networks operating in different meristematic tissues in strawberry.

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Mobility of Antiflorigen and PEBP mRNAs in Tomato-Tobacco Heterografts

Cited by 32 publications

References 60 publications

Evolutionary processes from the perspective of flowering time diversity

Evolutionary processes from the perspective of flowering time diversity

What drives interspecies graft union success? Exploring the role of phylogenetic relatedness and stem anatomy

Gene Expression Profiling of the Shoot Meristematic Tissues in Woodland Strawberry Fragaria vesca

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