| 长鬣蜥的染色体组型和减数分裂联会复合体的研究 |
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| 引用本文： | 王蕊芳,贺维顺.长鬣蜥的染色体组型和减数分裂联会复合体的研究[J].遗传学报,1993,20(3):211-215. |
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| 作者姓名： | 王蕊芳 贺维顺 |
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| 作者单位： | 中国科学院昆明动物研究所，中国科学院昆明动物研究所，中国科学院昆明动物研究所，中国科学院昆明动物研究所 650107，650107，650107 北京动物研究所，650107 |
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| 摘 要： | 本文报道长鬣蜥(Physignathus cocincinus)有丝分裂染色体及C-,Ag-带以及减数分裂联会复合体核型。染色体数2n=36,NF=48,核型组成为12V+24m(V为双臂大染色体,其中No.2为亚中着丝粒染色体,m为微小染色体)。结构异染色质主要分布在小染色体上。一对Ag-NORs分布于第2对亚中着丝粒染色体末端。
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| 关 键 词： | 染色体组型 长鬣蜥 减数分裂 |
Studies of Mitotic Chromosomes and Meiotic Synaptonemal Complex of Physignathus cocincinus (Reptilia) |
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| Wang Ruifang He Weishun Chen Quan Shi Liming.Studies of Mitotic Chromosomes and Meiotic Synaptonemal Complex of Physignathus cocincinus (Reptilia)[J].Journal of Genetics and Genomics,1993,20(3):211-215. |
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| Authors: | Wang Ruifang He Weishun Chen Quan Shi Liming |
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| Abstract: | C-, Ag-banded mitotic chromosomes and synaptonemal complex (SC) of Physignathus co-cincinus are reported in this paper. The diploid chromosome number is 2n = 36(12V + 24m, V is used for metacentric and submetacentric chromosome of the macrochromosome, m for mi-crochromosome), NF = 48. The C-bands locate mainly on all of the microchromosomes. A pair of NORs is distributed on the terminal of No.2 submetacentric chromosome.The different stages of meiosis in Physignathus cocincinus gonads are reported. A micro-spreading synaptonemal complex from spermatocytes is studied by electron microscopy. The SC karyotype of the Physignathus cocincinus with 18 bivalents has been constructed. |
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| Keywords: | Karyotype Synaptonemal complex Physigntahus cocincinus |
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