Cembrene A and a Congeneric Ketone Isolated from the Paracloacal Glands of the Chinese Alligator (Alligator sinensis)

1997 ◽  
Vol 60 (8) ◽  
pp. 828-831 ◽  
Author(s):  
Daniell L. Mattern ◽  
William D. Scott ◽  
Clarence A. McDaniel ◽  
Paul J. Weldon ◽  
David E. Graves
Keyword(s):  
Chinese Alligator ◽  
Paracloacal Glands ◽  
Alligator Sinensis

Lipids from the paracloacal glands of the chinese alligator (Alligator sinensis)

Lipids ◽  
1993 ◽  
Vol 28 (1) ◽  
pp. 75-78 ◽  
Author(s):  
B. S. Dunn ◽  
P. J. Weldon ◽  
R. W. Howard ◽  
C. A. McDaniel
Keyword(s):  
Chinese Alligator ◽  
Paracloacal Glands ◽  
Alligator Sinensis

Multiple paternity in Chinese alligator (Alligator sinensis) clutches during a reproductive season at Xuanzhou Nature Reserve

2010 ◽  
Vol 31 (3) ◽  
pp. 419-424 ◽  
Author(s):  
Xiao-Bing Wu ◽  
Yun Hu
Keyword(s):  
Dna Markers ◽  
Nature Reserve ◽  
Natural Populations ◽  
Multiple Paternity ◽  
Reproductive Season ◽  
Null Alleles ◽  
Chinese Alligator ◽  
Microsatellite Dna Markers ◽  
Alligator Sinensis ◽  
Allele Assignment

AbstractPaternity testing was determined in Chinese alligator (Alligator sinensis) clutches during a reproductive season at Xuanzhou Nature Reserve, using five microsatellite loci. DNA from ten mother and offspring clutches was analysed to identify paternal alleles. Three or four paternal alleles were observed among three of ten clutches. These clutches were sired by at least two different males. This present study confirmed the effectiveness of microsatellite DNA markers in detecting multiple paternity within natural populations of Chinese alligator. However, to reduce the confounding effects of mutations and null alleles on allele assignment and to increase power to monitor individual's genetic contribution, we need additional variable genetic markers.

Insights into the seasonal adaptive mechanisms of Chinese alligators (Alligator sinensis) from transcriptomic analyses

2018 ◽  
Vol 66 (2) ◽  
pp. 93 ◽  
Author(s):  
Hongji Sun ◽  
Xianbo Zuo ◽  
Long Sun ◽  
Peng Yan ◽  
Fang Zhang ◽  
...  
Keyword(s):  
Gene Expression ◽  
Skeletal Muscle ◽  
Molecular Mechanisms ◽  
Differentially Expressed ◽  
Model Organisms ◽  
Seasonal Adaptation ◽  
Cold Temperatures ◽  
Chinese Alligator ◽  
Adaptive Mechanisms ◽  
Alligator Sinensis

The Chinese alligator (Alligator sinensis) is an endemic and rare species in China, and is considered to be one of the most endangered vertebrates in the world. It is known to hibernate, an energy-saving strategy against cold temperatures and food deprivation. Changes in gene expression during hibernation remain largely unknown. To understand these complex seasonal adaptive mechanisms, we performed a comprehensive survey of differential gene expression in heart, skeletal muscle, and kidney of hibernating and active Chinese alligators using RNA-Sequencing. In total, we identified 4780 genes differentially expressed between the active and hibernating periods. GO and KEGG pathway analysis indicated the likely role of these differentially expressed genes (DEGs). The upregulated DEGs in the active Chinese alligator, CSRP3, MYG and PCKGC, may maintain heart and skeletal muscle contraction, transport and storage of oxygen, and enhance the body’s metabolism, respectively. The upregulated DEGs in the dormant Chinese alligator, ADIPO, CIRBP and TMM27, may improve insulin sensitivity and glucose/lipid metabolism, protect cells against harmful effects of cold temperature and hypoxia, regulate amino acid transport and uptake, and stimulate the proliferation of islet cells and the secretion of insulin. These results provide a foundation for understanding the molecular mechanisms of the seasonal adaptation required for hibernation in Chinese alligators, as well as effective information for other non-model organisms research.

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