DNA-METHYLTRANSFERASE 1 is a Member of FIS Polycomb Complex and is Involved in Seed Development in Arabidopsis

Luo, Ming; Luo, Ming; Berger, Frédéric; Dennis, Elizabeth S.; Peacock, Judith A.; Chaudhury, Abed

doi:10.1007/978-1-4020-6635-1_16

Cited by 10 publications

(19 citation statements)

References 7 publications

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“…In plants, WRKY proteins have diverse biological functions related to seed development as well as developmental and hormonecontrolled processes (Bakshi and Oelmüller, 2014). For example, MINISEED3, which encodes WRKY10, regulates seed size in Arabidopsis (Luo et al, 2005) and Loose Panicle1, which encodes a WRKY transcription factor, regulates seed size by increasing the seed length and width in foxtail millet [Setaria italica (L.) P.…”

Section: Discussionmentioning

confidence: 99%

Identification of QTLs for Domestication-Related Traits in Zombi Pea [Vigna vexillata (L.) A. Rich], a Lost Crop of Africa

et al. 2020

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Zombi pea [Vigna vexillata (L.) A. Rich] is a legume crop found in Africa. Wild zombi pea is widely distributed throughout the tropical and subtropical regions, whereas domesticated zombi pea is rarely cultivated. Plant domestication is an evolutionary process in which the phenotypes of wild species, including seed dormancy, pod shattering, organ size, and architectural and phenological characteristics, undergo changes. The molecular mechanism underlying the domestication of zombi pea is relatively unknown. In this study, the genetic basis of the following 13 domesticationrelated traits was investigated in an F 2 population comprising 198 individuals derived from a cross between cultivated (var. macrosperma) and wild (var. vexillata) zombi pea accessions: seed dormancy, pod shattering, days-to-flowering, days-to-maturity, stem thickness, stem length, number of branches, leaf area, pod length, 100-seed weight, seed width, seed length, and seeds per pod. A genetic map containing 6,529 single nucleotide polymorphisms constructed for the F 2 population was used to identify quantitative trait loci (QTLs) for these traits. A total of 62 QTLs were identified for the 13 traits, with 1-11 QTLs per trait. The major QTLs for days-to-flowering, stem length, number of branches, pod length, 100-seed weight, seed length, and seeds per pod were clustered in linkage group 5. In contrast, the major QTLs for seed dormancy and pod shattering belonged to linkage groups 3 and 11, respectively. A comparative genomic analysis with the cowpea [Vigna unguiculata (L.) Walp.] genome used as the reference sequence (i.e., the genome of the legume species most closely related to zombi pea) enabled the identification of candidate genes for the major QTLs. Thus, we revealed the genomic regions associated with domestication-related traits and the candidate genes controlling these traits in zombi pea. The data presented herein may be useful for breeding new varieties of zombi pea and other Vigna species.

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Section: Discussionmentioning

confidence: 99%

Identification of QTLs for Domestication-Related Traits in Zombi Pea [Vigna vexillata (L.) A. Rich], a Lost Crop of Africa

et al. 2020

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“…This subfamily includes the HAESA (HAE) and HAESA-LIKE2 (HSL2) RLKs known to redundantly promote organ shedding (Jinn et al, 2000;Cho et al, 2008;Stenvik et al, 2008), the CLATAVA1 and BARELY ANY MERISTEM RLKs that control stem cell differentiation in shoot and flower meristems (Clark et al, 1997;DeYoung et al, 2006;DeYoung and Clark, 2008), the HAIKU RLK that regulates seed size (Luo et al, 2005) and the PEP1 RECEPTOR1 (PEPR1) that is involved in pathogen response (Yamaguchi et al, 2006). Although most members of subfamily XI have extensive sets of 19-32 LRRs in their extracellular domains (Shiu and Bleecker, 2001), EVR has only five predicted LRRs (Fig.…”

Section: Evr Encodes a Membrane-localized Lrr-rlk With Dual Specificitymentioning

confidence: 99%

The EVERSHED receptor-like kinase modulates floral organ shedding inArabidopsis

et al. 2010

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Plant cell signaling triggers the abscission of entire organs, such as fruit, leaves and flowers. Previously, we characterized an ADP-ribosylation factor GTPase-activating protein, NEVERSHED (NEV), that regulates membrane trafficking and is essential for floral organ shedding in Arabidopsis. Through a screen for mutations that restore organ separation in nev flowers, we have identified a leucine-rich repeat receptor-like kinase, EVERSHED (EVR), that functions as an inhibitor of abscission. Defects in the Golgi structure and location of the trans-Golgi network in nev abscission zone cells are rescued by a mutation in EVR, suggesting that EVR might regulate membrane trafficking during abscission. In addition to shedding their floral organs prematurely, nev evr flowers show enlarged abscission zones. A similar phenotype was reported for plants ectopically expressing INFLORESCENCE DEFICIENT IN ABSCISSION, a predicted signaling ligand for the HAESA/HAESA-LIKE2 receptor-like kinases, indicating that this signaling pathway may be constitutively active in nev evr flowers. We present a model in which EVR modulates the timing and region of abscission by promoting the internalization of other receptor-like kinases from the plasma membrane.

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“…Previous studies have found that the loss-of-function mutants of apetala2 (ap2), auxin response factor2 (arf2), short hypocotyl under blue1 (shb1) and da1-1 give an increased seedmass phenotype in Arabidopsis through enlargement of the embryonic cell size or an increase in the embryonic cell number (Ohto et al, 2005;Schruff et al, 2006;Zhou et al, 2009;Li et al, 2008). By contrast, the mutants of miniseed3 and iku2 exhibit a smaller seed mass owing to a decrease in cell number, but not cell size (Luo et al, 2005). However, relatively little is known about the specific regulatory mechanisms that underlie these genes that mediate seed development in response to environmental inducers.…”

Section: Introductionmentioning

confidence: 99%

Seedlings of large-seeded plants are considered to withstand drought stresses efficiently

Meng

Wang

Yao

et al. 2015

Journal of Cell Science

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Seedlings of large-seeded plants are considered to be able to withstand abiotic stresses efficiently. The molecular mechanisms that underlie the involved signaling crosstalk between the large-seeded trait and abiotic tolerance are, however, largely unknown. Here, we demonstrate the molecular link that integrates plant abscisic acid (ABA) responses to drought stress into the regulation of seed mass. Both loss-of-function mutants of the Auxin Response Factor 2 (ARF2 encoding a transcription factor) and lines overexpressing AINTEGUMENTA (ANT; a transcription factor) under the 35S promoter exhibited large seed and drought-tolerant phenotypes as a result of abnormal ABAauxin crosstalk signaling pathways in Arabidopsis. The target gene COLD-REGULATED15A (COR15a) was identified as participating in the regulation of seed development with ABA signaling through a negative regulation mechanism that is mediated by ANT. The molecular and genetic evidence presented indicate that ARF2, ANT and COR15A form an ABA-mediated signaling pathway to link modulation of seed mass with drought tolerance. These observations indicate that the ARF2 transcription factor serves as a molecular link that integrates plant ABA responses to drought stress into the regulation of seed mass.

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DNA-METHYLTRANSFERASE 1 is a Member of FIS Polycomb Complex and is Involved in Seed Development in Arabidopsis

Cited by 10 publications

References 7 publications

Identification of QTLs for Domestication-Related Traits in Zombi Pea [Vigna vexillata (L.) A. Rich], a Lost Crop of Africa

Identification of QTLs for Domestication-Related Traits in Zombi Pea [Vigna vexillata (L.) A. Rich], a Lost Crop of Africa

The EVERSHED receptor-like kinase modulates floral organ shedding inArabidopsis

Seedlings of large-seeded plants are considered to withstand drought stresses efficiently

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