| 广义烙铁头属三种烙铁头的核型及分类地位初步探讨 |
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| 引用本文： | 曾晓茂,张服基.广义烙铁头属三种烙铁头的核型及分类地位初步探讨[J].动物分类学报,2000,25(3):354-358. |
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| 作者姓名： | 曾晓茂 张服基 |
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| 作者单位： | 中国科学院成都生物研究所 |
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| 基金项目： | 中国科学院生物分类区系特别支持费、中国科学院成都地奥科学基金，中国科学院生物科学与技术研究特别支持费!(编号:STZ 102)，中国科 |
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| 摘 要： | 报道３种烙铁头蛇的核型。其中，烙铁头２ｎ＝３６＝１６Ｍ（１４Ｖ＋２ＳＶ／Ｖ）＋２０ｍ，ＺＷ型性决定，Ｚ为Ｖ型，Ｗ为ＳＩ／ＳＶ型，Ｚ明显大于Ｗ；菜花烙铁头２居群２ｎ＝３６＝１６Ｍ（１４Ｖ＋２ＳＩ）＋２０ｍ，ＺＷ型性决定，Ｚ为Ｖ型，Ｗ为ＳＩ型，Ｚ明显大于Ｗ；云南竹叶青２ｎ＝３６＝１６Ｍ（１２Ｖ／ＳＶ＋２ＳＶ／ＳＩ＋２ＳＩ）＋２ｍ，无异型性染本，对３种的核型及烙铁头属已知核型进行了比较分析，并对云南竹叶
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| 关 键 词： | 核型 分类 蛇 烙铁头属 演化 |
THE KARYOTYPES AND THE PRIMARY TAXONOMICAL DISCUSSION ON THREE SPECIES OF THE GENUS TRIMERESURUS SENSU LATO |
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| ZENG Xiao Mao,ZHANG Fu Ji.THE KARYOTYPES AND THE PRIMARY TAXONOMICAL DISCUSSION ON THREE SPECIES OF THE GENUS TRIMERESURUS SENSU LATO[J].Acta Zootaxonomica Sinica,2000,25(3):354-358. |
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| Authors: | ZENG Xiao Mao ZHANG Fu Ji |
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| Abstract: | The karyotypes of 3 species of Trimeresurus sensu lato were reported Protobothrops mucrosquamatus had 2n=36=16M(14V+2SV/V)+20m and had ZW sex determining system with the Z chromosome of V type being larger than the W chromosome of SI/SV type P jerdonii had 2n=36=16M(14V+2SI)+20m and had ZW sex determining system with the Z chromosome of V type being larger than the W chromosome of SI type Trimeresurus yunnanensis had 2n=36=16M(12V/SV+2SV/SI+2SI)+20m and had no sex chromosome heteromorphism Based on comparing the karyotypes of 3 species with those of other known species in the same genus:1) the conspicuous differences of karyotypes between T stejnegeri and T yunnanensis were discussed associated with their taxonomical problems of species;2) the taxonomical problems of genus were discussed based on karyological populations of Trimeresurus sensu lato;3) the tendency of karyotypic differentiation of Trimeresurus sensu lato was discussed |
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| Keywords: | Trimeresurus karyotypes taxonomy |
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