湖北钉螺数量性状研究Ⅲ种群间形态性状变异及其空间相关分析

中国血吸虫病防治杂志 ›› 2006, Vol. 18 ›› Issue (4): 241-.

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湖北钉螺数量性状研究Ⅲ种群间形态性状变异及其空间相关分析

周艺彪|赵根明|彭文祥|韦建国|姜庆五*

复旦大学公共卫生学院流行病学教研室（上海200032）

发布日期:2006-05-11
通讯作者: 姜庆五
作者简介: 周艺彪(1972-)|男|博士|讲师。研究方向：血吸虫病流行病学与分子生物学
基金资助:
“十五”国家科技攻关项目(2004BA718804)

Study on morphologic quantitative characteristics of Oncomelania hupensis Ⅲ. Morphologic variations and their spatial correlation among snail populations

Zhou YiBiao, Zhao Genming, Peng Wenxiang, Wei Jianguo, Jiang Qingwu

Department of Epidemiology, School of Public Health, Fudan Uniuersiy, Shanghai 200032, China

Published:2006-05-11

摘要/Abstract

摘要：

目的探讨湖北钉螺种群间形态性状变异及其空间相关性。方法采集10个省的27个现场螺点的钉螺种群标本，分别测量螺壳的形态学指标及钉螺采集点之间的地理距离，分析钉螺种群间形态性状变异及其与地理距离的相关性。结果20个指名亚种（包括1个广西钉螺种群）钉螺种群间欧氏距离的中位数为3. 24（95% CI:2. 88～3.81）；不包括广西钉螺种群时，中位数为 3.15 (95% CI: 2.86～3.76)。6个滇川亚种钉螺种群间欧氏距离的中位数为1.69 (95% CI：1.33～ 2. 27)。无论指名亚种是否包括广西钉螺种群，滇川亚种钉螺种群间的欧氏距离均明显低于指名亚种种群(P<;0.05)。16个肋壳钉螺种群间欧氏距离的中位数为2. 86(95% CI：2.56～3, 23)；11 个光壳钉螺种群间欧氏距离的中位数为2. 24（95% CI：2.00～2.43），明显低于肋壳钉螺种群间的欧氏距离(P<0.05)。指名亚种包括广西钉螺种群时γ为0. 265 5 (P<0. 01)，不包括时γ为0．256 7(P<0.01)，肋壳钉螺种群的γ为0．312 1(P<0．01)。结论湖北钉螺指名亚种种群间的形态性状变异大于滇川亚种，肋壳钉螺种群间的形态性状变异大于光壳钉螺。我国大陆分布的肋壳钉螺种群间的表型变异具有明显的空问结构。

关键词: 湖北钉螺；形态数量性状；形态变异；空间相关

Abstract:

Objective To explore morphologic variations and their spatial correlation among On comelania hupensis populations from the mainland of China. Methods Twenty-seven snail popula tions from ten provinces were collected, The morphologic indices of shells and geographic distances between the snail spots were measured respectively, and the morphologic variations among snail populations and the correlations between morphologic variations and geographical distances were an alyzed. Results The median of Euclidean distances was 3. 24 (95% CI,2.88-3. 8l) among 20 snail populations of O. h. hupensis including a snail population from Guangxi Province, and was 3, 15 (95% CI: 2. 86- 3. 76) excluding the Guangxi snail population; the median was l. 69 (95% CI: 1. 33 - 2. 27) among 6 populations of O. h. robertsoni. Whether including a snail population from Guangxi Province or not, the median among O. h. robertsoni was le.ss than that among O. h. hupensrs (PO. 05). The correiation coefficient was 0. 265 5 for O. h.hupensis including a snail population from (Juangxi Province, 0. 256 7 not including it; and was 0. 312 1 for ribbcd-shell population. Conclusions Morphologic variation among O, h. hupensis is bigger than that among O. h. robertsoni, and morphologic variation among ribbed-shell populations is bigger than that among smooth-shell popuLations, There is significant spatial structure among ribbed-shell snail populations of Oncomelania hupensis distributed in the mainland of China.

Key words: Oncomelania hupensis, Morphologic quantitative traits, Morphologic variation, Spa- tial correlation

中图分类号:

R383. 24

周艺彪, 赵根明, 彭文祥, 韦建国, 姜庆五. 湖北钉螺数量性状研究Ⅲ种群间形态性状变异及其空间相关分析 [J]. 中国血吸虫病防治杂志, 2006, 18(4): 241-.

ZHOU Yi-Biao, ZHAO Gen-Ming, PENG Wen-Xiang, WEI Jian-Guo, JIANG Qing-Wu. Study on morphologic quantitative characteristics of Oncomelania hupensis Ⅲ. Morphologic variations and their spatial correlation among snail populations[J]. Chin J Schisto Control, 2006, 18(4): 241-.

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湖北钉螺数量性状研究Ⅲ种群间形态性状变异及其空间相关分析

Study on morphologic quantitative characteristics of Oncomelania hupensis Ⅲ. Morphologic variations and their spatial correlation among snail populations

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