start-ver=1.4
cd-journal=joma
no-vol=142
cd-vols=
no-issue=17
article-no=
start-page=2916
end-page=2927
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2015
dt-pub=201509
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Leg regeneration is epigenetically regulated by histone H3K27 methylation in the cricket Gryllus bimaculatus
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Hemimetabolous insects such as the cricket Gryllus bimaculatus regenerate lost tissue parts using blastemal cells, a population of dedifferentiated proliferating cells. The expression of several factors that control epigenetic modification is upregulated in the blastema compared with differentiated tissue, suggesting that epigenetic changes in gene expression might control the differentiation status of blastema cells during regeneration. To clarify the molecular basis of epigenetic regulation during regeneration, we focused on the function of the Gryllus Enhancer of zeste [Gb'E(z)] and Ubiquitously transcribed tetratricopeptide repeat gene on the X chromosome (Gb'Utx) homologues, which regulate methylation and demethylation of histone H3 lysine 27 (H3K27), respectively. Methylated histone H3K27 in the regenerating leg was diminished by Gb'E(z)RNAi and was increased by Gb'UtxRNAi. Regenerated Gb'E(z)RNAi cricket legs exhibited extra leg segment formation between the tibia and tarsus, and regenerated Gb'UtxRNAi cricket legs showed leg joint formation defects in the tarsus. In the Gb'E(z)RNAi regenerating leg, the Gb'dac expression domain expanded in the tarsus. By contrast, in the Gb'UtxRNAi regenerating leg, Gb'Egfr expression in the middle of the tarsus was diminished. These results suggest that regulation of the histone H3K27 methylation state is involved in the repatterning process during leg regeneration among cricket species via the epigenetic regulation of leg patterning gene expression.
en-copyright=
kn-copyright=

en-aut-name=HamadaYoshimasa
en-aut-sei=Hamada
en-aut-mei=Yoshimasa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=BandoTetsuya
en-aut-sei=Bando
en-aut-mei=Tetsuya
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=NakamuraTaro
en-aut-sei=Nakamura
en-aut-mei=Taro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=IshimaruYoshiyasu
en-aut-sei=Ishimaru
en-aut-mei=Yoshiyasu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=MitoTaro
en-aut-sei=Mito
en-aut-mei=Taro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=NojiSumihare
en-aut-sei=Noji
en-aut-mei=Sumihare
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

en-aut-name=TomiokaKenji
en-aut-sei=Tomioka
en-aut-mei=Kenji
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=

en-aut-name=OhuchiHideyo
en-aut-sei=Ohuchi
en-aut-mei=Hideyo
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=

affil-num=1
en-affil=
kn-affil=Graduate School of Natural Science and Technology, Okayama University

affil-num=2
en-affil=
kn-affil=Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University

affil-num=3
en-affil=
kn-affil=Department of Life Systems, Institute of Technology and Science, The University of Tokushima Graduate School

affil-num=4
en-affil=
kn-affil=Department of Life Systems, Institute of Technology and Science, The University of Tokushima Graduate School

affil-num=5
en-affil=
kn-affil=Department of Life Systems, Institute of Technology and Science, The University of Tokushima Graduate School

affil-num=6
en-affil=
kn-affil=Department of Life Systems, Institute of Technology and Science, The University of Tokushima Graduate School

affil-num=7
en-affil=
kn-affil=Graduate School of Natural Science and Technology, Okayama University

affil-num=8
en-affil=
kn-affil=Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
en-keyword=Regeneration
kn-keyword=Regeneration
en-keyword=Epigenetics
kn-keyword=Epigenetics
en-keyword=Histone H3K27
kn-keyword=Histone H3K27
en-keyword=Gryllus bimaculatus
kn-keyword=Gryllus bimaculatus
en-keyword=Polycomb
kn-keyword=Polycomb
END