摘要
采用PHA和秋水仙素胸腔体内注射法，以头肾组织为材料，低渗一空气干燥法制片，对取自新疆额尔齐斯河流域白斑狗鱼的染色体核型进行了分析。经对5尾白斑狗鱼的45个中期分裂相进行显微分析和测量，结果显示：白斑狗鱼的25对染色体均为端部着丝粒染色体，其核型公式为2n=50t，NF=50。白斑狗鱼染色体大小的绝对值为0．96～1．36／an，平均长度为1．20μm。25对染色体相对长度大小依次递减，大小差异较显著，平均值为5．68。目前，对新疆额尔齐斯白斑狗鱼的染色体组型研究尚未见报道。
The mitotic chromosomes and karyotype of white spot pike （Esox lucius ） collected from the Ertix river in Xinjiang Province, were studied by injecting PHA and colchicine. Renal tissues were used and treated with low permeating and drying in the air. 45 middle mitotic cells of 5 individuals were measured and analyzed by microscope method. The results showed： All 25 pairs of chromosomes of white spot pike were the telocentrics. The chromosome formula was N = 50 t, NF = 50. The absolute length of the chromosomes was from 0.96 pm tol. 36 pro, with an average length of 1.20 tan. The relative length of 25 pairs of chromosomes of white spot pike significantly decreased in proper order, the average relative length was 5.68. Up to date, the karyotype of white spot pike （ Esox lucius ） from Ertix river in Xinjiang Province has not been reported yet.
出处
《上海水产大学学报》
CSCD
北大核心
2006年第2期136-139,共4页
Journal of Shanghai Fisheries University
基金
上海水产大学-新疆农十师合作课题(科03-03)
关键词
白斑狗鱼
染色体
核型
Esox lucius
chromosome
karyotype
