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Titolo:
INSIGHTS INTO PIGMENTARY PHENOMENA PROVIDED BY GRAFTING AND CHIMERA FORMATION IN THE AXOLOTL
Autore:
HOUILLON C; BAGNARA JT;
Indirizzi:
UNIV ARIZONA,DEPT ANAT & CELL BIOL,POB 245044 TUCSON AZ 85724 UNIV ARIZONA,DEPT ANAT & CELL BIOL TUCSON AZ 85724 UNIV PARIS 06,LAB BIOL ANIM EMBRYOL PARIS FRANCE
Titolo Testata:
Pigment cell research
fascicolo: 6, volume: 9, anno: 1996,
pagine: 281 - 288
SICI:
0893-5785(1996)9:6<281:IIPPPB>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
MELANOCYTE-STIMULATING-HORMONE; CREST CELL-MIGRATION; MOUSE AGOUTI GENE; AMBYSTOMA-MEXICANUM; MELANIZATION; SKIN; AMPHIBIA; DIFFERENTIATION; EMBRYOS; URODELA;
Keywords:
CHIMERAS; NEURAL CREST; CHROMATOBLASTS; OVOCYTES; MELANIZATION INHIBITING FACTOR (MIF); AGOUTI SIGNALING PROTEIN (ASP);
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
38
Recensione:
Indirizzi per estratti:
Citazione:
C. Houillon e J.T. Bagnara, "INSIGHTS INTO PIGMENTARY PHENOMENA PROVIDED BY GRAFTING AND CHIMERA FORMATION IN THE AXOLOTL", Pigment cell research, 9(6), 1996, pp. 281-288

Abstract

The expression of pigmentation patterns in axolotl pigmentary mutantswas observed following three types of experimental manipulations including chimera formation, reciprocal neural crest grafts, and grafts ofgonadal primordia. Three pigmentary genes were utilized including thewild type (D), white (d), and albino (a). In chimeras between white and albino embryos, melanoblasts from the white half crossed the graft interface to differentiate in albino skin. Neural crest grafts from white embryos to albinos provided melanophores of white origin that werecapable of differentiation in albino skin. Grafts of gonadal primordia from albino to white embryos provided albino germ cells that formed unpigmented ovocytes together with dark ovocytes: white ovocytes from the albino grafted ovary, and dark ovocytes from the host ovary. The donor albino white ectoderm included in the graft was able to support the differentiation of melanophores, iridophores, and xanthophores thatinvaded the graft ectoderm from the neural crest of the white host. It was concluded that manifestation of the white or wild phenotypes maybe related to the possible presence or absence of inhibiting or stimulating pigmentary factors in the skin. This possibility was discussed in the light of recent discoveries of such factors as Agouti SignalingProtein (ASP) from mammalian skin.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 12/07/20 alle ore 02:55:30