TAILIEUCHUNG - Báo cáo khoa học: Host-defence peptide profiles of the skin secretions of interspecific hybrid tree frogs and their parents, female Litoria splendida and male Litoria caerulea

Five healthy adult female first-generation hybrid tree frogs were produced by interspecific breeding of closely related tree frogsLitoria splendidaand L. caeruleain a cage containing large numbers of males and females of both species. Phylogenetic analysis of mitochondrial DNA sequences estab-lished the female parent to be L. splendida. | ềFEBS Journal Host-defence peptide profiles of the skin secretions of interspecific hybrid tree frogs and their parents female Litoria splendida and male Litoria caerulea Tara L. Pukala1 Terry Bertozzi2 Steve C. Donnellan2 John H. Bowie1 Katharina H. Surinya-Johnson3 Yanquin Liu4 Rebecca J. Jackway1 Jason R. Doyle5 Lyndon E. Llewellyn5 and Michael J. Tyler6 1 Department of Chemistry The University of Adelaide Australia 2 South Australian Museum Adelaide Australia 3 Schoolof Molecular Biosciences The University of Adelaide Australia 4 Hebei AgriculturalUniversity Boading China 5 Australian Institute of Marine Science Townsville Australia 6 Schoolof Earth and EnvironmentalScience The University of Adelaide Australia Keywords cDNA clones of preprocaerin hostdefense peptide profiles interspecific female hybrids parents female Litoria splendida male Litoria caerulea mitochondrialDNA analysis Correspondence . Bowie Department of Chemistry The University of Adelaide Adelaide SA 5005 Australia Fax 61 08 830 34358 Tel 61 08 830 35767 E-mail Present address Department of Chemistry The University of Adelaide Australia Received 4 May 2006 revised 28 May 2006 accepted 5 June 2006 doi Five healthy adult female first-generation hybrid tree frogs were produced by interspecific breeding of closely related tree frogs Litoria splendida and L. caerulea in a cage containing large numbers of males and females of both species. Phylogenetic analysis of mitochondrial DNA sequences established the female parent to be L. splendida. The peptide profile of the hybrid frogs included the neuropeptide caerulein four antibiotics of the caerin 1 family and several neuronal nitric oxide synthase inhibitors of the caerin 1 and 2 classes of peptides. The skin secretions of the hybrids contained some peptides common to only one parent some produced by both parental species and four peptides expressed by the hybrids but not the parental

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