Identification of four Engrailed genes in the Japanese lamprey, Lethenteron japonicum

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2008
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Matsuura, Manami
Nishihara, Hidenori
Onimaru, Koh
Kokubo, Nobuhiro
Kusakabe, Rie
Okada, Norihiro
Kuratani, Shigeru
Tanaka, Mikiko
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We have isolated four homologs of Engrailed genes from the Japanese lamprey, Lethenteron japonicum, an agnathan that occupies a critical phylogenic position between cephalochordates and gnathostomes. We named these four genes LjEngrailedA, LjEngrailedB, LjEngrailedC, and LjEngrailedD. LjEngrailedA, LjEngrailedB, and LjEngrailedD share a major expression domain in the presumptive midbrain-hindbrain boundary region of the central nervous system, although their levels and timing of expression differed. On the other hand, LjEngrailedC transcripts were in the pharyngeal ectoderm and the ventral ectoderm of the body wall. In addition, LjEngrailedA was expressed in the ventral side of the epibranchial muscle precursors. LjEngrailedD transcripts were seen in the mesodermal cells of the mandibular arch and later in a group of cells responsible for the formation of the upper lip, lower lip, and velum. Our results provide clues to the evolution of these structures as well as a possible scenario for duplication events of Engrailed genes.

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ISO 690MATSUURA, Manami, Hidenori NISHIHARA, Koh ONIMARU, Nobuhiro KOKUBO, Shigehiro KURAKU, Rie KUSAKABE, Norihiro OKADA, Shigeru KURATANI, Mikiko TANAKA, 2008. Identification of four Engrailed genes in the Japanese lamprey, Lethenteron japonicum. In: Developmental Dynamics. 2008, 237(6), pp. 1581-1589. ISSN 1058-8388. eISSN 1097-0177. Available under: doi: 10.1002/dvdy.21552
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@article{Matsuura2008Ident-1133,
  year={2008},
  doi={10.1002/dvdy.21552},
  title={Identification of four Engrailed genes in the Japanese lamprey, Lethenteron japonicum},
  number={6},
  volume={237},
  issn={1058-8388},
  journal={Developmental Dynamics},
  pages={1581--1589},
  author={Matsuura, Manami and Nishihara, Hidenori and Onimaru, Koh and Kokubo, Nobuhiro and Kuraku, Shigehiro and Kusakabe, Rie and Okada, Norihiro and Kuratani, Shigeru and Tanaka, Mikiko}
}
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