RPK2 is an essential receptor-like kinase that transmits the CLV3 signal in <i>Arabidopsis</i>

Kinoshita, Atsuko; Betsuyaku, Shigeyuki; Osakabe, Yuriko; Mizuno, Seitoku; Nagawa, Shingo; Stahl, Yvonne; Simon, Rüdiger; Yamaguchi-Shinozaki, Kazuko; Fukuda, Hiroo; Sawa, Shinichiro

doi:10.1242/dev.061747

Cited by 104 publications

(163 citation statements)

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“…MONOPTEROS and GNL1 operate in embryo and vascular development 45,46 ; TOADSTOOL 2 operates in meristem maintenance 47 , and the Arabidopsis WRKY2 protein acts in zygote polarization in embryo development 48 . Additionally, WRKY2 has a role in pollen development 49 and growth arrest induced by ABA during seed germination 50 .…”

Section: Selective Sweeps Reveal Coordinated Local Adaptationmentioning

confidence: 99%

Genome sequencing and population genomic analyses provide insights into the adaptive landscape of silver birch

Salojärvi¹,

Smolander²,

Nieminen³

et al. 2017

Nat Genet

236

253

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Forest ecosystems maintain a large share of Northern Hemisphere biodiversity. Boreal forests comprise roughly 30% of global forest area 1 and contain the highest tree density among climate zones 2 . Moreover, boreal regions are undergoing extensive climate change. Annual temperature increases exceeding 1.5 °C are projected to result in a warming of 4-11 °C by the end of this century, with little concomitant increase in precipitation 1 . At this pace, climate zones will shift northward at a greater speed than trees can migrate 3 . To understand how future populations of forest trees may respond to climate change, it is essential to uncover past and present signatures of molecular adaptation in their genomes. Silver birch, B. pendula, is a pioneer species in boreal forests of Eurasia. Flowering of the species can be artificially accelerated 4 , giving it an advantage over other tree species with published genome sequences (such as poplar 5 , spruce 6 , and pine 7 ) for the optimization of fiber and biomass production.Here we sequenced 150 birch individuals and assembled a B. pendula reference genome from a fourth-generation inbred line, resulting in a high-quality assembly of 435 Mb that was linked to chromosomes using a dense genetic map. We analyzed SNPs in the genomes of 80 birch individuals spanning most of the geographic range of B. pendula, as well as seven other members of Betulaceae. Population genomic analyses of these data provide insights into the deep-time evolution of the birch family and on recent natural selection acting on silver birch.Genome sequencing and population genomic analyses provide insights into the adaptive landscape of silver birch Silver birch (Betula pendula) is a pioneer boreal tree that can be induced to flower within 1 year. Its rapid life cycle, small (440-Mb) genome, and advanced germplasm resources make birch an attractive model for forest biotechnology. We assembled and chromosomally anchored the nuclear genome of an inbred B. pendula individual. Gene duplicates from the paleohexaploid event were enriched for transcriptional regulation, whereas tandem duplicates were overrepresented by environmental responses. Population resequencing of 80 individuals showed effective population size crashes at major points of climatic upheaval. Selective sweeps were enriched among polyploid duplicates encoding key developmental and physiological triggering functions, suggesting that local adaptation has tuned the timing of and cross-talk between fundamental plant processes. Variation around the tightlylinked light response genes PHYC and FRS10 correlated with latitude and longitude and temperature, and with precipitation for PHYC. Similar associations characterized the growth-promoting cytokinin response regulator ARR1, and the wood development genes KAK and MED5A.A full list of affiliations appears at the end of the paper.

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Section: Selective Sweeps Reveal Coordinated Local Adaptationmentioning

confidence: 99%

Genome sequencing and population genomic analyses provide insights into the adaptive landscape of silver birch

Salojärvi¹,

Smolander²,

Nieminen³

et al. 2017

Nat Genet

236

253

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“…For example, CLV3 and CLE40 are responsible for shoot and root apical meristem maintenance, respectively [9,11,12]. CLV3 is perceived by three different receptors or putative receptors, CLAVA-TA1 (CLV1), CLAVATA 2 (CLV2)-CORYNE (CRN), and RPK2/TOAD2, to limit stem cell size by restricting the expression of a homeodomain transcription factor, WUSCHEL (WUS), via a negative feedback loop [13][14][15][16][17][18]. On the other hand, CLE40 is perceived by its putative receptor complex containing two different RLKs, ARA-BIDOPSIS CRIKLY4 (ACR4) and CLV1, to inhibit the expression of a root version of homeodomain transcription factor, WOX5 [19,20].…”

Section: Introductionmentioning

confidence: 99%

RGF1 INSENSITIVE 1 to 5, a group of LRR receptor-like kinases, are essential for the perception of root meristem growth factor 1 in Arabidopsis thaliana

et al. 2016

Cell Res

151

174

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“…The CLAVATA3 (CLV3)/EMBRYO SURROUNDING REGIONrelated (CLE) family of signalling peptides plays crucial roles in the regulation of stem cell maintenance in the meristems 3 . In the shoot apical meristem of Arabidopsis thaliana, CLV3 peptide secreted from stem cells restricts the expression domain of the WUSCHEL (WUS) homeobox transcription factor gene to the organizing centre via three receptor pathways, CLV1, CLV2-CORYNE (CRN) and RECEPTOR-LIKE PROTEIN KINASE 2 (RPK2) [4][5][6][7][8][9][10] . CLV3-WUS signalling makes a negative feedback loop to maintain the homoeostasis of stem cell population in the shoot apical meristem [11][12][13] .…”

mentioning

confidence: 99%

Plant GSK3 proteins regulate xylem cell differentiation downstream of TDIF–TDR signalling

et al. 2014

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RPK2 is an essential receptor-like kinase that transmits the CLV3 signal in Arabidopsis

Cited by 104 publications

References 1 publication

Genome sequencing and population genomic analyses provide insights into the adaptive landscape of silver birch

Genome sequencing and population genomic analyses provide insights into the adaptive landscape of silver birch

RGF1 INSENSITIVE 1 to 5, a group of LRR receptor-like kinases, are essential for the perception of root meristem growth factor 1 in Arabidopsis thaliana

Plant GSK3 proteins regulate xylem cell differentiation downstream of TDIF–TDR signalling

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