长江流域10个不同水域克氏原螯虾野生群体形态差异分析
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摘要
运用T检验和3种多元统计方法对长江流域10个不同水域克氏原螯虾(Procambarus clarkii)野生群体的形态差异进行分析。T检验结果表明,体重、头胸甲长、宽和腹节总长是引起雌雄形态差异的主要因素。聚类分析显示,江苏高邮和江苏洪泽2个克氏原螯虾群体之间的形态差异最小;重庆忠县、江西湖口、湖北荆州和湖北洪湖群体与江苏高邮、江苏洪泽、上海崇明和四川宜宾群体形态差异较大。主成分分析结果显示,10个不同水域克氏原螯虾群体4个主成分的累积贡献率为84.003%,其中第1和第2主成分是克氏原螯虾的腹节因子,贡献率最大;10个不同水域的克氏原螯虾的形态差异主要集中在腹节上。判别分析中,雌性综合判别率为64.7%,雄性综合判别率为65.6%,判别率较低。变异系数检验分析结果表明,10个不同水域克氏原螯虾群体产生了一定程度的形态差异,但这些差异并没有使它们分化到亚种水平。
Morphological difference of 10 different Procambarus clarkii populations from different natural waters in Yangtze River Basin were analyzed by independent sample T test and 3 different multiple statistical methods. Independent sample T test results showed that the main factors causing male and female morphological differences were weight, the carapace length,the carapace width and the abdomen length. The results of cluster analysis showed that no obvious variation was found between the population Gaoyou and Hongze. There were great morphological variations between the populations of Zhongxian,Hukou, Jingzhou and Honghu, and another populations of Gaoyou, Hongze, Chongming and Yibin. The principal component analysis showed that the cumulative contribution rate of 4 principal components in 10 different crayfish populations was 84. 003%. The first and second principal components were the abdominal segment factors of the crayfish,which were the highest contribution rate. The abdominal nodes mainly contributed to morphological variations among the 10 populations from different watersheds. The discriminatory analysis showed that the total discriminate rate of female was64. 7% and the male was 65. 6%,both of the two genders discriminate rate were low. The variation factor test analysis indicated that there were some morphological variations among the 10 populations from different watersheds,but these variations did not lead them to differentiate into subspecies.
Morphological difference of 10 different Procambarus clarkii populations from different natural waters in Yangtze River Basin were analyzed by independent sample T test and 3 different multiple statistical methods. Independent sample T test results showed that the main factors causing male and female morphological differences were weight, the carapace length,the carapace width and the abdomen length. The results of cluster analysis showed that no obvious variation was found between the population Gaoyou and Hongze. There were great morphological variations between the populations of Zhongxian,Hukou, Jingzhou and Honghu, and another populations of Gaoyou, Hongze, Chongming and Yibin. The principal component analysis showed that the cumulative contribution rate of 4 principal components in 10 different crayfish populations was 84. 003%. The first and second principal components were the abdominal segment factors of the crayfish,which were the highest contribution rate. The abdominal nodes mainly contributed to morphological variations among the 10 populations from different watersheds. The discriminatory analysis showed that the total discriminate rate of female was64. 7% and the male was 65. 6%,both of the two genders discriminate rate were low. The variation factor test analysis indicated that there were some morphological variations among the 10 populations from different watersheds,but these variations did not lead them to differentiate into subspecies.
引文
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[2]王蕊.克氏原螯虾的营养保健功能及相关食品的研究与开发[J].水产科技情报,2008,(1):24-27.
[3]龚世园,吕建林,孙瑞杰,等.克氏原螯虾繁殖生物学研究[J].淡水渔业,2008,38(6):23-25,30.
[4]陆剑锋,赖年悦,成永旭.淡水小龙虾资源的综合利用及其开发价值[J].农产品加工(学刊),2006,(10):47-52,63.
[5]李艳和.克氏原螯虾在我国的入侵遗传学研究[D].武汉:华中农业大学,2013.
[6]郑友.不同地区野生克氏原螯虾形态差异及氨基酸的分析[D].南昌:南昌大学,2013.
[7]黄有辉.日本沼虾不同地理种群形态学及多样性研究[D].上海:华东师范大学,2016.
[8]王克行.虾蟹类增养殖学[M].北京:中国农业出版社,1997.
[9]李思发,李晨虹,李家乐.尼罗罗非鱼品系间形态差异分析[J].动物学报,1998,(4):75-82.
[10]韩晓磊,马强,李小蕊,等.不同地区克氏原螯虾群体的形态差异分析[J].水生态学杂志,2011,(3):82-87.
[11]郑友,胡火根,唐建清,等.不同水域克氏原螯虾群体的形态差异分析[J].南昌大学学报(理科版),2014,(1):96-102.
[12]张萌,白俊,金辉,等.不同地理群体的克氏原螯虾形态差异多元分析[J].南昌大学学报(理科版),2016,(2):188-196.
[13]傅德印.主成分分析中的统计检验问题[J].统计教育,2007,(9):4-7.
[14]梁宏伟,曹力欢,李翔,等.三个不同品系中华鳖形态差异分析[J].淡水渔业,2017,47(4):91-96.
[15]韩晓磊,马强,李小蕊,等.中国螯虾科虾类(克氏原螯虾和东北螯虾)形态差异及判别分析[J].中国农学通报,2011,27(11):61-65.
[16]安丽,孟庆磊,张龙岗,等.翘嘴红鲌雌雄个体的形态差异分析[J].淡水渔业,2017,47(2):36-41.
[17]梁宏伟,李忠,罗相忠,等.长丰鲢与长江鲢形态差异与判别分析[J].水生生物学报,2015,39(5):1059-1064.
[18]王静,夏结来,叶冬青.判别分析方法在医学应用中的进展[J].数理统计与管理,2008,(2):369-376.
[19]陈杰,李福贵,黄创新,等.不同鳊鲂属鱼类群体的形态差异分析[J].上海:上海海洋大学学报,2014,(3):388-394.
[20]张帅.七彩神仙形态指标体系分析及其雌雄鉴别模型[D].上海海洋大学,2013.
[21]曾聪,阎里清,高泽霞,等.梁子湖、鄱阳湖和淤泥湖团头鲂的形态学比较[J].华中农业大学学报,2012,(1):88-94.
[22]Mayr E,Linsley E G,Usinger R L.Methods and principles of systematic zoology[M].New York and London:Mc Graw Hill,1953.
[23]Avise J C,Ball R M.Principles of genealogical concordance in species concepts and biological taxonomy[J].Oxford Surv Evol Biol,1990,(7):45-67.