Composition of the Cloacal Gland Secretion of Tuatara,Sphenodon punctatus

2009 ◽  
Vol 6 (1) ◽  
pp. 1-37 ◽  
Author(s):  
Birte Flachsbarth ◽  
Matthias Fritzsche ◽  
Paul J. Weldon ◽  
Stefan Schulz
Keyword(s):  
Gland Secretion ◽  
Sphenodon Punctatus ◽  
Cloacal Gland

scholarly journals Xenoxins, a family of peptides from dorsal gland secretion of Xenopus laevis related to snake venom cytotoxins and neurotoxins

1993 ◽  
Vol 268 (22) ◽  
pp. 16458-16464
Author(s):  
H.V. Kolbe ◽  
A. Huber ◽  
P. Cordier ◽  
U.B. Rasmussen ◽  
B. Bouchon ◽  
...  
Keyword(s):  
Xenopus Laevis ◽  
Snake Venom ◽  
Gland Secretion ◽  
Dorsal Gland

Anal gland secretion of European mole: Volatile constituents and significance in territorial maintenance

1996 ◽  
Vol 22 (2) ◽  
pp. 383-392 ◽  
Author(s):  
Chantal Khazanehdari ◽  
Alan J. Buglass ◽  
John S. Waterhouse
Keyword(s):  
Gland Secretion ◽  
Anal Gland ◽  
Anal Gland Secretion ◽  
Volatile Constituents ◽  
European Mole

scholarly journals Evidence of two deeply divergent co-existing mitochondrial genomes in the Tuatara reveals an extremely complex genomic organization

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
J. Robert Macey ◽  
Stephan Pabinger ◽  
Charles G. Barbieri ◽  
Ella S. Buring ◽  
Vanessa L. Gonzalez ◽  
...  
Keyword(s):  
Genomic Organization ◽  
Phylogenetic Analyses ◽  
Genomic Polymorphism ◽  
Sequencing Technologies ◽  
Cold Tolerant ◽  
Long Read ◽  
Sphenodon Punctatus ◽  
Nucleotide Divergence ◽  
Mitochondrial Heteroplasmy ◽  
Transmembrane Regions

AbstractAnimal mitochondrial genomic polymorphism occurs as low-level mitochondrial heteroplasmy and deeply divergent co-existing molecules. The latter is rare, known only in bivalvian mollusks. Here we show two deeply divergent co-existing mt-genomes in a vertebrate through genomic sequencing of the Tuatara (Sphenodon punctatus), the sole-representative of an ancient reptilian Order. The two molecules, revealed using a combination of short-read and long-read sequencing technologies, differ by 10.4% nucleotide divergence. A single long-read covers an entire mt-molecule for both strands. Phylogenetic analyses suggest a 7–8 million-year divergence between genomes. Contrary to earlier reports, all 37 genes typical of animal mitochondria, with drastic gene rearrangements, are confirmed for both mt-genomes. Also unique to vertebrates, concerted evolution drives three near-identical putative Control Region non-coding blocks. Evidence of positive selection at sites linked to metabolically important transmembrane regions of encoded proteins suggests these two mt-genomes may confer an adaptive advantage for an unusually cold-tolerant reptile.

Zur Chemotaxonomie der Corviden, II. Die Bürzelsekrete von Eichelhäher (Garrulus glandariusJ, Elster (Pica pica), Alpendohle (Pyrrhocorax graculus) und Kolkrabe ( Corvus corax) / Chemotaxonomy of Corvidae, II. The Uropygial Gland Secretion from the Jay (Garrulus glandarius), Magpie (Pica pica), Alpine Chough (Pyrrhocorax graculus), and Raven (Corvus corax)

1974 ◽  
Vol 29 (5-6) ◽  
pp. 239-242 ◽  
Author(s):  
Jens Poltz ◽  
Jürgen Jacob
Keyword(s):  
Fatty Acids ◽  
Gland Secretion ◽  
Uropygial Gland ◽  
Pica Pica ◽  
Corvus Corax ◽  
Garrulus Glandarius ◽  
The Family ◽  
Uropygial Gland Secretion ◽  
Branched Alcohols

The uropygial gland fats from four species of the family Corvidae are found to be mainly mono­ ester waxes, which consist of mono-, di-, and trimethyl substituted fatty acids and n- and methyl-branched alcohols. The positions of all methyl brandlings are even-numbered, the 2-position is preferred. About 2 - 40% of the secretions consist of triester waxes: Alkyl-hydroxy-malonic acids esterified with n-fatty acids and n-alcohols. Waxes of this type are very common in the uropygial gland fats of birds and therefore, in opposite to the monoester waxes, they are not usable for a chemotaxo­ nomy of birds.

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