AI Article Synopsis
- Bellamya purificata is a valuable medicinal and economically significant species in China, but its genetic characteristics are not well understood, limiting the use of its high-quality germplasm.
- A study analyzed the genetic diversity and structure of 12 B. purificata populations in Guangxi using microsatellite DNA markers, finding high genetic diversity within populations and weak differentiation between them.
- The research indicates that genetic mixing occurs among populations, with ongoing gene flow, and suggests that proximity allows for population exchange, providing essential genetic information for future aquaculture and germplasm development.
Article Abstract
Bellamya purificata is an important medicinal value and economically farmed species in China. However, because little is known about the genetic characteristics of this species, the utilization of high-quality germplasm resources is hindered. The study examined the genetic differentiation between, and the structure of 12 B. purificata populations in Guangxi using 7 microsatellite DNA markers. High genetic diversity occurred in each population, with mean observed heterozygosity 0.655 and a mean expected heterozygosity 0.832. Analysis of molecular variance reveals genetic diversity to be greater within (95.2%) than among populations (4.8%). Genetic differentiation between populations is weak (Fst = 0.048, P < 0.001), with mixing of genetic clusters prevalent at the level of the individual. Genetic flow exists between populations (Nm = 3.084-11.778), with Longshui and Guilin populations exchanging frequently. A Mantel test reveals a low correlation between geographic and genetic distances (r = 0.2482, P < 0.071), suggesting that dispersal between neighboring populations facilitates population exchange. No significant heterozygosity excess was observed for any population (P > 0.05), indicating a lack of recent genetic bottlenecks. The results provide important genetic information for B. purificata, and data for potential germplasm discovery and aquaculture development.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11198789 | PMC |
| http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0305197 | PLOS |
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