| 家蚕Bombyx mori L.染色体的G带组型研究 |
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| 引用本文： | 向仲怀 吴洪丽. 家蚕Bombyx mori L.染色体的G带组型研究[J]. 西南大学学报(自然科学版), 1990, 12(1): 98-102 |
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| 作者姓名： | 向仲怀 吴洪丽 |
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| 作者单位： | 西南农业大学蚕学系，西南农业大学蚕学系，西南农业大学蚕学系，西南农业大学蚕学系 湖北农科院蚕桑研究所，湖北农科院蚕桑研究所 |
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| 基金项目： | 国家自然科学基金资助课题 |
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| 摘 要： | 以今井的涂片法制备染色体标本,采用GUG法进行G-带分染,研究了家蚕早双线期染色体的组型。依照染色体相对长度及带型鉴别了家蚕28对染色体,并绘制了染色体组型模式图。利用限性普斑系统W 染色体上的易位片断作标识,观察到不对称配对二价体,推论此异形二价体即性染色体。性染色体在14—16染色体范围内。
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| 关 键 词： | 蚕 家蚕 染色体 G带组型 |
ANALYSIS OF G-BANDING PATTERN ON CHROMOSOME OF SILKWORM(Bombyx mori L.) |
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| Xiang Zonghuai Wu Hongli Hao Yu Giang Tongqing. ANALYSIS OF G-BANDING PATTERN ON CHROMOSOME OF SILKWORM(Bombyx mori L.)[J]. Journal of southwest university (Natural science edition), 1990, 12(1): 98-102 |
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| Authors: | Xiang Zonghuai Wu Hongli Hao Yu Giang Tongqing |
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| Abstract: | The authors prepared the chromosome spread according to the smearmethod previoisly reported by Imai(1980),and obtained the G-bandingpattern with GuG-method.We studied the karyotype pattern of onset-diplotene phase chromosomes of silkworm,and identified the all twentyeightpairs of silkworm chromosomes,as well as drew the karyotype pattern ofsilkworm chromosomes.By using used the translocation fragment thatconnected with the w-chromosome of the sex-limited normal specklestrain as a marker,we observed the unsymmerical pairing bivalent,andinferred the special-shaped bivalent was sex chromosome,Based on themeasuring information of ten cells,we inferred the existence range of sexchromosome is from the fourteenth chromosome to the sixteenth. |
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| Keywords: | Bombyx mori L. idiogram G-band sex chromosome. |
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