中国媒介生物学及控制杂志

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我国长角血蜱孤雌生殖种群的发现和生物学特性的研究

周金林;周勇志;龚海燕;陈灵芝;曹杰   

  1. 中国农业科学院上海家畜寄生虫病研究所农业部动物寄生虫病重点开放实验室 上海200232
  • 出版日期:2004-06-20 发布日期:2004-06-20

Discovery of Parthenogenesis Population of Haemaphysalis longicornis in China and Its Biological Characteristic

ZHOU Jin-lin; ZHOU Yong-zhi; GONG Hai-yan;et al   

  1. Shanghai Institute of Animal Parasitology, Chinese Academy of Agricultural Sciences; Key Lab of Animal Parasitology, Ministry of Agriculture, Shanghai 200232,China
  • Online:2004-06-20 Published:2004-06-20

摘要: 目的研究长角血蜱的生物学特性。方法从上海野生动物园鹿区草地采集1只长角血蜱,在实验室条件下(25℃,92%RH,黑暗条件,兔体饲血),经3代繁殖饲养和染色体标本观察。结果成蜱阶段均无雄蜱,但雌蜱可正常繁殖后代。蜱胚细胞染色体数为30~36个,未发现性染色体。生物学特性研究发现,幼蜱和若蜱阶段的体重大于已报道的两性生殖种群,但成蜱较小,饱血雌蜱重量明显小于两性生殖种群。结论该长角血蜱为孤雌生殖种群,属国内首次报道。

关键词: 长角血蜱, 孤雌生殖, 生物学特性

Abstract: Objective To understand the biological characteristic of population of Haemaphysalis longicornis in China.Methods A strain of Haemaphysalis longicornis from Shanghai was studied on its life cycle and chromosome under laboratory conditions( 25 ℃,92%RH,dark and feeding on rabbit).No male ticks were found in all adults in three consecutive generations.Results The female ticks can propagate offspring normally and this strain ticks can develop through whole life cycle.Chromosome amounts to 30-36,no sex chromosome was observed.The biological characters of this population are similar to bisexual population,but the weight of larva and nymph are bigger than the latter's,the adult is smaller.The engorgement female is obviously lighter.Conclusion Results showed that this stain of ticks belonged to parthenogenesis population of Haemaphysalis longicornis.This paper first reports parthenogenesis population ofHaemaphysalis longicornis in China.