CAJ | 학술논문

目的：对上海市场销售的一种观赏性扁卷螺科淡水螺类进行物种鉴定，同时分析其在中国的潜在适生区。方法于2013年8月在上海市某花鸟市场购买6只淡水螺类标本，通过形态与分子生物学技术进行物种鉴定。运用生态小生境模型建立原产地模型，预测其在中国的潜在适宜生存区域。结果依据贝壳外部形态鉴定为扁卷螺科丽卷螺属三旋丽卷螺，查阅文献表明该物种原产地为北美地区，为广分布物种。通过线粒体细胞色素C氧化酶I（COI）基因片段序列的分子进化距离及系统发育树分析，进一步确认了形态学鉴定结果。通过全球生物多样性信息网络（GBIF）收集获取原产地共2294条分布记录，提取经纬度有效记录614条，运用最大熵模型Maxent建立了北美地区分布模型，并应用该模型预测显示，三旋丽卷螺在我国主要适生区位于河南省及其与邻近省份交界地区。结论三旋丽卷螺外形与双脐螺属物种相似，鉴别上容易混淆。中国首次报道该物种，目前野外自然种群分布未知，但有在中国扩散的可能性。
목적：대상해시장소수적일충관상성편권라과담수라류진행물충감정，동시분석기재중국적잠재괄생구。방법우2013년8월재상해시모화조시장구매6지담수라류표본，통과형태여분자생물학기술진행물충감정。운용생태소생경모형건립원산지모형，예측기재중국적잠재괄의생존구역。결과의거패각외부형태감정위편권라과려권라속삼선려권라，사열문헌표명해물충원산지위북미지구，위엄분포물충。통과선립체세포색소C양화매I（COI）기인편단서렬적분자진화거리급계통발육수분석，진일보학인료형태학감정결과。통과전구생물다양성신식망락（GBIF）수집획취원산지공2294조분포기록，제취경위도유효기록614조，운용최대적모형Maxent건립료북미지구분포모형，병응용해모형예측현시，삼선려권라재아국주요괄생구위우하남성급기여린근성빈교계지구。결론삼선려권라외형여쌍제라속물충상사，감별상용역혼효。중국수차보도해물충，목전야외자연충군분포미지，단유재중국확산적가능성。
Objective To identify the species classification of an ornamental Planorbidae from a flower market in Shanghai and analyze its potential distribution in China. Methods In August 2013,six freshwater snail specimens were collected from the Wanshang flower market. The species was identified by morphology and molecular biology. An ecological niche model was constructed based on the native geographic presence occurrence data,and projected onto the whole of China to predict the poten?tial distribution. Results Their shell external morphology suggested that the specimens belonged to Planorbella trivolvis(Say 1817)of Planorbidae,which is native in North America. The sequence data of a fragment of the mitochondrial cytochrome c oxi?dase subunit I(COI)confirmed its identification. A total of 2 294 georeferenced occurrence points in North America were car?ried out from the Global Biodiversity Information Facility databases and 614 records with coordinates were used to produce a North American native niche model by a maximum entropy method(Maxent). The projection on China results suggested high probabilities of occurrence mostly in Henan Province and its borderland with nearby provinces. Conclusions P. trivolvis is sim?ilarly with Biomphalaria species from shell morphology. It is the first records of the species in China,and the field dispersal is not clear.