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近一年来,我们用改进了的方法,对湖南省长沙市郊区稻田内采集的3～4龄中华按蚊幼虫的唾腺多线染色体进行了研究。中华按蚊幼虫唾腺多线染色体共三条。x 染色体,部分标本中只见一臂,部分标本中在着丝点之后,尚可见一极短的臂。关于这种差异是否与性别或其他有关,正在研究中。2号染色体,分左、右两臂,两臂等长。3号染色体,分左、右两臂,右臂长,左臂短。x 染色体最短。关于中华按蚊多线染色体的研究,Sharma(1971)在印度首次报道并发表了唾腺染色体模式图。国内叶炳辉等(1981)首次报道并发表了南京、上海两地区中华按蚊的染色体全图。尔后,徐秀芬报道了郑州地区唾腺染色体全图。我们将观察结果与以上资料比较,发现 x 染色体与以上作者们所认定的 X 染色体明显不同。在我们的标本中,性染色体明显短于2R、2L、3R
In the past year, we have used the improved method to study the multi-line chromosomes of salivary glands in 3 ~ 4 instar larvae of Anopheles sinensis collected from the paddy fields in the suburbs of Changsha City, Hunan Province. Anopheles sinensis juvenile salivary gland multi-line chromosome three. x chromosome, some of the specimens saw only one arm, part of the specimen in the centromere, we can see a very short arm. Whether this difference is gender or otherwise is under study. Chromosome 2, points left and right arms, arms and other long. Chromosome 3, points left and right arms, right arm long, short left arm. x chromosome shortest. On the Anopheles sinensis multilineage chromosome research, Sharma (1971) first reported in India and published salivary gland chromosome pattern map. Ye Binghui et al (1981) first reported and published the chromosomes of Anopheles sinensis in Nanjing and Shanghai. Later, Xu Xiufen reported the salivary gland chromosome in Zhengzhou. We compare the observations with the above data and find that the x chromosome is significantly different from the X chromosomes identified by the authors above. In our specimens, sex chromosomes were significantly shorter than 2R, 2L, 3R