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塔里木兔的核型分析

许可芬   

  1. 中国科学院新疆生物土壤沙漠研究所
  • 出版日期:2011-11-23 发布日期:2011-11-22

ANALYSIS ON THE KARYOTYPES OF LEPUS YARKANDENSIS

XU Kefen   

  1. Xinjiang Institute of Biology, Pedology and Desert Research, Academia Sinica
  • Online:2011-11-23 Published:2011-11-22

摘要: 塔里木兔是兔科(Leporidae)动物适应干旱荒漠生境形成的一特殊物种,无论在形态结构或生理-生态适应等方面,均表明其为典型的荒漠栖居者。本种广布于塔里木盆地内的农垦绿洲、胡杨林、柽柳灌丛、盐生草甸、戈壁和沙漠边缘的固定与半固定沙丘等多种自然景观中,为盆地特有种。 Hsu,T.C.等(1967,1970,1971)曾报道Lepus americanus等6种兔科动物的核型,Chiarell,A.G.和I.Capana(1973)汇集了学者们早期研究该科Lepus alleni等14种的核型资料,而塔里木兔的核型至今未见报道。本文对其作了观察分析,结果如下。

关键词: 塔里木兔, 染色体, 核型

Abstract: This paper deals with the chromosomal karyotype of Lepus yarkandensis which is a special species in Tarim Basin. The karyotype was prepared by the colchicine,hypotonic, air drying technique from the metaphase in bone marrow.Its diploid is 48. The karyotype formula is 2n = 18m+14sm + 8st+6t+Xst + Yst(N·F = 80).The chromosomal number of Lepus yarkandensis is the same as that of genus Lepus. Its geographical distribution area closely links up with that of Lepus oiostolus and Lepus capensis. It shows that Lepus yarkandensis has the general appearence of karyotype in the genus Lepus so the genus name Tarimolagus should be abandoned.G-bands of the bone marrow shows that the characteristics of the chromosomal banding of the tarim hare is obvious.

Key words: Tarim hare, Lepus yarkandensis, Chromosome, Karyotypes