Vol. 57, 2018 (update: 2018.04.24; 05.04) Isolation and Characterization of Polymorphic Microsatellite Loci for Caridina cantonensis and Transferability Across Eight Confamilial Species (Atyidae, Decapoda)Lai Him Chow1, Ka Yan Ma1,*, Jerome H. L. Hui1, and Ka Hou Chu1 doi:10.6620/ZS.2018.57-19
1School of Life Sciences, The Chinese University of Hong Kong, Shatin, Hong Kong SAR. E-mail: markc1224@gmail.com (Chow); jeromehui@cuhk.edu.hk (Hui); kahouchu@cuhk.edu.hk (Chu) (Received 7 February 2018; Accepted 10 April
2018; Communicated by Chiun-Cheng Ko) Lai
Him Chow, Ka Yan Ma, Jerome H. L. Hui, and Ka Hou Chu (2018) Caridina cantonensis
is a common freshwater shrimp found in Guangdong Province, China. The
species is landlocked, and this life history contributes substantially
to its strong population differentiation at the very small geographical
scale. Given its widespread distribution, it serves as an excellent
model for examining population connectivity and phylogeographical
history of freshwater invertebrates in South China. This study isolated
ten microsatellite loci from genome sequences of C. cantonensis and four from the
transcriptome assemblies of Neocaridina
davidi. The microsatellites were then characterized in 24 C. cantonensis
individuals from one population. The number of alleles ranged from
seven to 18. Observed and expected heterozygosities ranged from 0.050
to 0.958 (averaged 0.649) and 0.754 to 0.919 (averaged 0.833),
respectively. We also assessed the cross-species transferability of the
markers developed across eight confamilial species. On average, nine
markers can be amplified in each species, and five markers can be
amplified across all eight species. The markers developed in this study
would enable evaluation of genetic diversity and population structure
of these species for conservation management planning. Key words: Caridina, Neocaridina, SSR markers,
Cross-species amplification, Freshwater shrimp. *Correspondence: Tel: 852-26096775. E-mail:
makayana@gmail.com Supplementary Material: Appendix 1 |