Genetic basis of the “sleeping leaves” revealed

Cortizo, Millán; Laufs, Patrick

doi:10.1073/pnas.1209532109

Cited by 15 publications

(5 citation statements)

References 8 publications

(12 reference statements)

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“…Among them, ELP1, APU and SLP are orthologous proteins of AtLOB and were identified to regulate nastic leaf movement. Nastic leaf movement is generated by pulvinus and/or pulvinula, which are specialized motor organs located at the base of the petiole and petiolulae [90]. In M. truncatula, ELP1/PLP is specifically expressed in the pulvinus that gives rise to the motor organ [16].…”

Section: Functions Of Lbd Proteins In Class Ia Cladementioning

confidence: 99%

Phylogeny and Functions of LOB Domain Proteins in Plants

Zhang

et al. 2020

IJMS

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Lateral organ boundaries (LOB) domain (LBD) genes, a gene family encoding plant-specific transcription factors, play important roles in plant growth and development. At present, though there have been a number of genome-wide analyses on LBD gene families and functional studies on individual LBD proteins, the diverse functions of LBD family members still confuse researchers and an effective strategy is required to summarize their functional diversity. To further integrate and improve our understanding of the phylogenetic classification, functional characteristics and regulatory mechanisms of LBD proteins, we review and discuss the functional characteristics of LBD proteins according to their classifications under a phylogenetic framework. It is proved that this strategy is effective in the anatomy of diverse functions of LBD family members. Additionally, by phylogenetic analysis, one monocot-specific and one eudicot-specific subclade of LBD proteins were found and their biological significance in monocot and eudicot development were also discussed separately. The review will help us better understand the functional diversity of LBD proteins and facilitate further studies on this plant-specific transcription factor family.

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Section: Functions Of Lbd Proteins In Class Ia Cladementioning

confidence: 99%

Phylogeny and Functions of LOB Domain Proteins in Plants

Zhang

et al. 2020

IJMS

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“…Typically, a pulvinus consists of a core of vascular tissues surrounded by a flexible, bulky cylinder of thin-walled parenchyma cells (Satter et al, 1990). The outer cells of the parenchyma, termed the "motor cells", are responsible for nyctinastic and thigmonastic movement through water-driven volume changes (Moran, 2007;Rodrigues and Machado, 2008;Cortizo and Laufs, 2012). A loss-of-function mutation at the Elongated Petiolule1 or Petiolule-Like Pulvinus locus caused pulvini to change into petiolules with defects in leaf movement in Medicago truncatula (Chen et al, 2012;Zhou et al, 2012), indicating that leaf movability is associated with pulvinus development.…”

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confidence: 99%

GmILPA1, Encoding an anaphase-promoting complex-like Protein, affects Leaf Petiole Angle

et al. 2017

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Leaf petiole angle (LPA) is an important plant architectural trait that affects canopy coverage, photosynthetic efficiency, and ultimately productivity in many legume crops. However, the genetic basis underlying this trait remains unclear. Here, we report the identification, isolation, and functional characterization of (), a gene encoding an APC8-like protein, which is a subunit of the anaphase-promoting complex/cyclosome in soybean (). A gamma ray-induced deletion of a fragment involving the fourth exon of and its flanking sequences led to extension of the third exon and formation of, to our knowledge, a novel 3'UTR from intronic and intergenic sequences. Such changes are responsible for enlarged LPAs that are associated with reduced motor cell proliferation in the mutant. is mainly expressed in the basal cells of leaf primordia and appears to function by promoting cell growth and division of the pulvinus that is critical for its establishment. GmILPA1 directly interacts with GmAPC13a as part of the putative anaphase-promoting complex. exhibits variable expression levels among varieties with different degrees of LPAs, and expression levels are correlated with the degrees of the LPAs. Together, these observations revealed a genetic mechanism modulating the plant petiole angle that could pave the way for modifying soybean plant architecture with optimized petiole angles for enhanced yield potential.

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“…4.1a), a mature, specialized motor organ at the leaf base. The identity of the pulvinus as a motor organ is genetically determined, as discovered through pulvini-devoid, non-moving mutants of three orthologs of the same gene: elongated petiolule1 (elp1) of Medicago truncatula, apulvinic (apu) of Pisum sativum and sleepless (slp) of Lotus japonicus Cortizo and Laufs 2012;Zhou et al 2012).…”

Section: The Types Of Leaf Movementsmentioning

confidence: 99%

Rhythms in Plants

Mancuso¹,

Shabala²

2015

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Genetic basis of the “sleeping leaves” revealed

Cited by 15 publications

References 8 publications

Phylogeny and Functions of LOB Domain Proteins in Plants

Phylogeny and Functions of LOB Domain Proteins in Plants

GmILPA1, Encoding an anaphase-promoting complex-like Protein, affects Leaf Petiole Angle

Rhythms in Plants

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