The Chinese beard eel (Cirrhimuraena chinensis Kaup) is an intertidal fish and a model organism for the study of impacts caused by topological fluctuations during the Pleistocene and current intricate hydrological conditions on fauna living in the coastal areas of China. In this study, we examined the phylogeographical pattern, population genetic profile and demographical history of C. chinensi...

Calanthe tsoongiana is a rare terrestrial orchid endemic to China, and this species has experienced severe habitat loss and fragmentation. Inter-simple sequence repeat (ISSR) markers were employed to assess the genetic diversity and differentiation of six populations of C. tsoongiana. Based on 124 discernible fragments yielded by eleven selected primers, high genetic diversity was revealed at t...

The genetic diversity and structure of the ant Atta robusta were assessed by ISSR (inter-simple sequence repeats) in 72 colonies collected from 10 localities in the Brazilian states of Espírito Santo (48 colonies) and Rio de Janeiro (24 colonies). The ISSR pattern included 67 bands, 51 of them (76.1%) polymorphic. Analysis of molecular variance (AMOVA) revealed a high level (57.4%) of inter-pop...

Methods We sequenced 867 and 789 nucleotides of cytochrome oxidase I from an average of 19 and 20 individuals for C. meadii and P. smintheus, respectively, from each of the same 18 localities. From the sequence data, we calculated measures of genetic diversity within each population (H, h), genetic divergence among populations (FST), and tested for geographic structure through an analysis of mo...

Disanthus cercidifolius subsp. longipes is an endangered species in China. Genetic diversity and structure analysis of this species was investigated using amplified fragments length polymorphism (AFLP) fingerprinting. Nei's gene diversity ranged from 0.1290 to 0.1394. The AMOVA indicated that 75.06% of variation was distributed within populations, while the between-group component 5.04% was sma...

The genetic variability of the COI gene was studied in the common octopus, Octopus vulgaris Cuvier, 1797. A total of 222 individuals from 7 sampling sites were analysed with the aim of elucidating patterns of genetic variation along the coasts of Sardinia (Western Mediterranean). A total of 17 different haplotypes were identified with four principal haplotypes recorded in all locations. The pai...

Abstract The population structure and genetic variability of North African catfish Clarias gariepinus (Burchell 1822) were investigated using partial mitochondrial DNA cytochrome b region sequences. Fifty-four (54) samples from three geographically isolated rivers in Nigeria. analysis 53 haplotypes revealed greater haplotype diversity (0.99930) nucleotide (p) (0.07270). According to an molecula...

The economic and social importance of citrus production in Brazil and the high economic loss caused by citrus variegated chlorosis (CVC) in Brazilian orchards have resulted in an extensive research program involving the sequencing of the genome of Xylella fastidiosa (Xf) subsp. pauca (Xf-pa, strain 9a5c), the causal agent of CVC. Other genomes of Xf-pa are currently being sequenced. Despite the...