Receptor serine/threonine protein kinases in signalling: analysis of the erecta receptor‐like kinase of <i>Arabidopsis thaliana</i>

Lease, Kevin A.; Lau, Nelson C.; Schuster, Robert A.; Torii, Keiko U.; Walker, John C.

doi:10.1046/j.1469-8137.2001.00150.x

Cited by 70 publications

(67 citation statements)

References 36 publications

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“…Other er mutant alleles did not show any significant effect on canalization; this suggests that either an alternate gene linked to ER is responsible for the effect or the presence of allele specificity in the modulation of developmental buffering. Variation in allelic effects of er mutants, however, is common and highly dependent on the phenotype measured, although er-105 has a consistently strong phenotypic effect (33,34,39,40). Moreover, the function of ER has also been shown to be dependent on genetic background (40).…”

Section: The Evolutionary and Quantitative Genetics Of Canalization Imentioning

confidence: 99%

Genetics of microenvironmental canalization in Arabidopsis thaliana

Hall

Dworkin

Ungerer

et al. 2007

Proc. Natl. Acad. Sci. U.S.A.

123

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Canalization is a fundamental feature of many developmental systems, yet the genetic basis for this property remains elusive. We examine the genetic basis of microenvironmental canalization in the model plant Arabidopsis thaliana, focusing on differential developmental stability between genotypes in one fitness and four quantitative morphological traits. We measured developmental stability in genetically identical replicates of two populations of recombinant inbred (RI) lines and one population of geographically widespread accessions of A. thaliana grown in two different photoperiod-controlled environments. We were able to map quantitative trait loci associated with developmental stability. We also identified a candidate gene, ERECTA, that may contribute to microenvironmental canalization in rosette leaf number under long-day photoperiods, and analysis of mutant lines indicates that the er-105 allele results in increased canalization for this trait. ERECTA, which encodes a signaling protein, appears to act as an ecological amplifier by transducing developmental noise (e.g., microenvironmental variation) into phenotypic differentiation. We also measured genotypic selection on four plant architecture traits and find evidence for selection for both increased and decreased canalization at various traits.developmental noise ͉ developmental stability ͉ ERECTA ͉ phenotypic plasticity ͉ quantitative trait locus mapping

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Section: The Evolutionary and Quantitative Genetics Of Canalization Imentioning

confidence: 99%

Genetics of microenvironmental canalization in Arabidopsis thaliana

Hall

Dworkin

Ungerer

et al. 2007

Proc. Natl. Acad. Sci. U.S.A.

123

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“…The pedicel elongates with the development of floral organs. Mutant screens for altered inflorescence branching patterns have revealed ER (Torii et al, 1996;Yokoyama et al, 1998;Lease et al, 2001a) and other genes (Lease et al, 2001b;Venglat et al, 2002). The commonly used Arabidopsis Ler ecotype harbors the er mutation, resulting in an altered inflorescence branching pattern caused by a reduction in the length of internodes and pedicels, the growth of clustered flowers at the apex of the inflorescence, and shorter, wider, and blunt-tipped siliques.…”

Section: Clv1 Can Function Outside Of the Meristemmentioning

confidence: 99%

“…These insertions are available as lines CS3954 and CS3955 from the ABRC. These two lines, originally in the Ws-2 background, were backcrossed to Ler, Ws-2 er-123 (Lease et al, 2001a), and Columbia er-106 (Lease et al, 2001a) for a comparative analysis of the effect of the mutation in both backgrounds.…”

Section: Clv1 and Clv3 Allelesmentioning

confidence: 99%

CLAVATA1 Dominant-Negative Alleles Reveal Functional Overlap between Multiple Receptor Kinases That Regulate Meristem and Organ Development

et al. 2003

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The CLAVATA1 (CLV1) receptor kinase controls stem cell number and differentiation at the Arabidopsis shoot and flower meristems. Other components of the CLV1 signaling pathway include the secreted putative ligand CLV3 and the receptorlike protein CLV2. We report evidence indicating that all intermediate and strong clv1 alleles are dominant negative and likely interfere with the activity of unknown receptor kinase(s) that have functional overlap with CLV1. clv1 dominant-negative alleles show major differences from dominant-negative alleles characterized to date in animal receptor kinase signaling systems, including the lack of a dominant-negative effect of kinase domain truncation and the ability of missense mutations in the extracellular domain to act in a dominant-negative manner. We analyzed chimeric receptor kinases by fusing CLV1 and BRASSINOSTEROID INSENSITIVE1 ( BRI1 ) coding sequences and expressing these in clv1 null backgrounds. Constructs containing the CLV1 extracellular domain and the BRI1 kinase domain were strongly dominant negative in the regulation of meristem development. Furthermore, we show that CLV1 expressed within the pedicel can partially replace the function of the ERECTA receptor kinase. We propose the presence of multiple receptors that regulate meristem development in a functionally related manner whose interactions are driven by the extracellular domains and whose activation requires the kinase domain.

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“…Masle et al, (2005) reported the isolation of a gene that regulates TE in A. thaliana, ERECTA. a putative leucine-rich repeat receptor-like kinase (LRR-RLK), known for its effects on inflorescence development (Torii et al, 1996;Lease et al, 2001) is a major contributor to a locus for Δ on the Arabidopsis chromosome 2, which, depending on growth conditions, explained 21-64% of the total phenotypic variation in Δ. Mechanisms include, but are not limited to, effects on stomatal density, epidermal cell expansion, mesophyll cell proliferation, and cell-cell contact. The alx8 mutant in A. thaliana is drought tolerant, exhibits improved water-use efficiency, and a number of drought-tolerance genes are up-regulated.…”

Section: Wue-related Gene Cloning and Identificationmentioning

confidence: 99%

Advances and prospects: Biotechnologically improving crop water use efficiency

Zhengbin

Shao³

et al. 2011

Critical Reviews in Biotechnology

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Bio-water saving can be defined as the reduction of crop water consumption employing biological measures. This is the focus of efforts to save water in agriculture. Different levels of water-use efficiency (WUE) have been developed. The genetic diversity of WUE has been confirmed in several crops. WUE is the basis of bio-watering and physiological WUE is the key. The degree to develop physiological WUE potential decides the performance of bio-watering in the field. During this process, fine management is important. Thus bio-watering is closely related to WUE. Crop WUE has improved and evolved as a result of breeding programs. Many WUE genes have been located in different genomic and aneuploid materials and have been mapped by various molecular markers in a number of crops. Two genes, (Erecta and alx8), which control water use efficiency; have been cloned in Arabidopsis thaliana. Eleven WUE genes have been identified by microarray analysis. Six genes associated with drought resistance and photosynthesis have been transfered into crops which have resulted in improving WUE and drought resistance. WUE is important on the basis of functional identification of more drought resistant gene resources. The popularity on the industrial-scale of transgenic plants is still in its infancy and one of the reasons for this is the lack of knowledge regarding molecular mechanisms and it is a very immature technology. Enhanced agricultural practices and the theoretical aspects of improving crop WUE have been developed and are discussed in this review paper. Rapid progress will be made in biowater savings and that crop WUE can be substantially improved under both favorable and unfavorable water-limited environments. This will be achieved by a combination of traditional breeding techniques and the introduction of modern biotechnology

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Receptor serine/threonine protein kinases in signalling: analysis of the erecta receptor‐like kinase of Arabidopsis thaliana

Cited by 70 publications

References 36 publications

Genetics of microenvironmental canalization in Arabidopsis thaliana

Genetics of microenvironmental canalization in Arabidopsis thaliana

CLAVATA1 Dominant-Negative Alleles Reveal Functional Overlap between Multiple Receptor Kinases That Regulate Meristem and Organ Development

Advances and prospects: Biotechnologically improving crop water use efficiency

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