Population genomics of the basket cockle Clinocardium nuttallii in the southern Salish Sea

The basket cockle Clinocardium nuttallii is among the favored foods of Indigenous people along the northwest Pacific coast of North America, yet localized declines in their abundance have led to interest in stock enhancement efforts. We used a population genomics approach to examine potential risks associated with stock enhancement of C. nuttallii in the southern Salish Sea, a large inland estuary that includes Puget Sound. More than 8,000 single nucleotide polymorphisms across 349 individuals at 12 locations were assembled de novo using restriction-site associated DNA sequencing.

篮鸟尾蛤（Clinocardium nuttallii）是北美西北太平洋沿岸原住民钟爱的传统食材之一，但局部区域其种群丰度出现下降，由此引发了针对该物种种群增殖工作的研究兴趣。本研究采用种群基因组学方法，对包含普吉特海湾（Puget Sound）的大型内陆河口——南萨利希海（southern Salish Sea）范围内，C. nuttallii种群增殖的潜在风险展开了考察。研究人员利用限制性酶切位点相关DNA测序（restriction-site associated DNA sequencing, RAD-seq）技术，对采自12个采样点位的349个个体进行从头组装分析，共获得8000余个单核苷酸多态性（single nucleotide polymorphisms, SNP）位点。