Genetic differentiation

Genetic differentiation between natural and hatchery populations of Manila clam (Ruditapes philippinarum) based on microsatellite markers

K. Xing, Gao, M. L., and Li, H. J., “Genetic differentiation between natural and hatchery populations of Manila clam (Ruditapes philippinarum) based on microsatellite markers”, vol. 13, pp. 237-245, 2014.

Manila clam (Ruditapes philippinarum) is one of the major aquaculture species around the world and supports an important segment of the aquaculture industry in China. In this study, we used ten microsatellite markers to detect genetic diversity within six R. philippinarum populations and genetic differentiation between them. A total of 109 alleles were detected across all loci.

Genetic characterization of hatchery populations of Korean spotted sea bass (Lateolabrax maculatus) using multiplex polymerase chain reaction assays

H. S. An, Kim, H. Y., Kim, J. B., Chang, D. S., Park, K. D., Lee, J. W., Myeong, J. I., and An, C. M., “Genetic characterization of hatchery populations of Korean spotted sea bass (Lateolabrax maculatus) using multiplex polymerase chain reaction assays”, vol. 13, pp. 6701-6715, 2014.

The spotted sea bass, Lateolabrax maculatus, is an important commercial and recreational fishery resource in Korea. Aquacultural production of this species has increased because of recent resource declines, growing consumption, and ongoing government-operated stock release programs. Therefore, the genetic characterization of hatchery populations is necessary to maintain the genetic diversity of this species and to develop more effective aquaculture practices.

Genetic diversity and differentiation of the endangered and endemic species Sauvagesia rhodoleuca in China as detected by ISSR analysis

S. F. Chai, Jiang, Y. S., Zhuang, X. Y., Shi, Y. C., Wei, X., Luo, W. H., and Chen, Z. Y., “Genetic diversity and differentiation of the endangered and endemic species Sauvagesia rhodoleuca in China as detected by ISSR analysis”, vol. 13, pp. 8258-8267, 2014.

Sauvagesia rhodoleuca (Ochnaceae) is an endangered plant that is endemic to southern China. The levels of genetic variation and patterns of population structure in S. rhodoleuca were investigated using inter-simple sequence repeat markers. Eleven primers were used to amplify DNA samples from 117 individuals, and a total of 92 loci were detected.

Genetic diversity of different populations and improved growth in the F1 hybrids in the swimming crab (Portunus trituberculatus)

B. Q. Gao, Liu, P., Li, J., Wang, Q. Y., and Li, X. P., “Genetic diversity of different populations and improved growth in the F1 hybrids in the swimming crab (Portunus trituberculatus)”, vol. 13, pp. 10454-10463, 2014.

The swimming crab, Portunus trituberculatus, is widely distributed throughout the coastal waters of Asian-Pacific nations and is an important economic species in this region. The aquaculture of swimming crabs has been plagued by problems associated with low growth rates, poor flesh quality, and weak disease resistance. To overcome these problems, selective breeding programs have been suggested as a means of genetically improving these traits in stock populations.

Selection pressures have driven population differentiation of domesticated and wild common carp (Cyprinus carpio L.)

L. H. Xu, Wang, C. H., Wang, J., Dong, Z. J., Ma, Y. Q., and Yang, X. X., “Selection pressures have driven population differentiation of domesticated and wild common carp (Cyprinus carpio L.)”, vol. 11, pp. 3222-3235, 2012.

Selection pressures are the principle evolutionary forces for the genetic differentiation of populations. Recent changes in selection pressures on mitochondrial DNA and microsatellite have been described in a wide variety of organisms. The common carp (Cyprinus carpio) has experienced strong selection pressure, in particular artificial selection, during its domestication. However, the contribution and extent of artificial selection in driving genome-wide population differentiation remain unclear.

Genetic differentiation of octopuses from different habitats near the Korean Peninsula and eastern China based on analysis of the mDNA cytochrome C oxidase 1 gene

J. - H. Kang, Park, J. - Y., and Choi, T. - J., “Genetic differentiation of octopuses from different habitats near the Korean Peninsula and eastern China based on analysis of the mDNA cytochrome C oxidase 1 gene”, vol. 11, pp. 3988-3997, 2012.

Distributed along the coastal waters of Korea and China, Octopus minor is found in various habitats, including the mud flats in the southern and western coasts of the Korean Peninsula and the rocky areas around Jeju Island; however, the genetic relationships among the different populations are unknown and have not been studied. We compared 630-nucleotide sequences of the CO1 gene from O.

Genetic diversity of the honeybee Apis cerana in Yunnan, China, based on mitochondrial DNA

L. Yin and Ji, T., “Genetic diversity of the honeybee Apis cerana in Yunnan, China, based on mitochondrial DNA”, vol. 12, pp. 2002-2009, 2013.

DNA sequence diversity in the tRNAleu-COII portion of the mitochondrial genome was investigated in samples of Apis cerana from Yunnan, China. A fragment of about 480 bp in tRNAleu-COII, including a noncoding area and part of COII, was sequenced. The noncoding area was 97-98 bp; 8 haplotypes were found, among which 5 had been reported previously, while 3 were new. The mean diversity of haplotypes was 0.752 ± 0.030 (0.378-0.698), and nucleotide diversity was 0.01073 ± 0.00087 (0.00412-0.01123).

Genetic diversity of natural populations of Machilus thunbergii, an endangered tree species in eastern China, determined with ISSR analysis

J. Liu, Sun, H. G., Jiang, J. M., Shao, W. H., and Luan, Q. F., “Genetic diversity of natural populations of Machilus thunbergii, an endangered tree species in eastern China, determined with ISSR analysis”, vol. 12, pp. 3689-3697, 2013.

The genetic diversity of 10 Machilus thunbergii populations in eastern China was analyzed using inter-simple sequence repeat markers. The populations showed high genetic diversity, with an overall population genetic diversity of 0.2343. Genetic diversity varied largely among populations, and populations with the highest genetic diversity were mainly from the eastern and western parts of the natural distribution area.

Genetic diversity and differentiation in Dalbergia sissoo (Fabaceae) as revealed by RAPD

B. - Y. Wang, Shi, L., Ruan, Z. - Y., and Deng, J., “Genetic diversity and differentiation in Dalbergia sissoo (Fabaceae) as revealed by RAPD”, vol. 10, pp. 114-120, 2011.

Dalbergia sissoo, a wind-dispersed tropical tree, is one of the most preferred timber tree species of South Asia. Genetic diversity and differentiation among natural populations of D. sissoo were examined for the first time. We found a relatively high level of genetic diversity in D.

Isolation and characterization of 16 novel microsatellite loci in two inbred strains of the Chinese hamster (Cricetulus griseus)

G. - H. Song, Geng, J. - N., Jia, R. - Y., Yue, W. - B., Liu, T. - F., and Hu, S. - N., “Isolation and characterization of 16 novel microsatellite loci in two inbred strains of the Chinese hamster (Cricetulus griseus)”, vol. 10, pp. 2245-2256, 2011.

The Shanyi inbred A and E strains of the Chinese hamster are widely used in biomedical research, but detailed genetic characterization has been lacking. We developed microsatellite markers that could be used for genetic diversity analysis and linkage map construction. We isolated and characterized 16 novel microsatellite loci from a microsatellite-enriched genomic DNA library. These loci were genotyped in 48 animals from the two strains, and the polymorphic information content was determined.

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