| 蓖麻蚕和栗蚕的性染色体研究 |
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| 引用本文： | 宋方洲,伴野丰.蓖麻蚕和栗蚕的性染色体研究[J].蚕业科学,1996,22(3):170-174. |
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| 作者姓名： | 宋方洲 伴野丰 |
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| 作者单位： | [1]西南农业大学蚕桑丝绸学院 [2]日本九州大学农学部 |
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| 摘 要： | 根据在蓖麻蚕（ｐｈｉｌｏｓａｍｉａｃｙｎｔｈｉａｒｉｃｉｎｉ）（♀）和栗蚕（Ｄｉｃｔｙｏｐｌｏｃａｊａｐｏｎｉｃａ）（♀）减数分裂前期所观察到的ｘ（Ｚ）染色体的长度和在全套染色体中的序号以及栗蚕Ｘ染色体的异染色质区域等特征，认为蓖麻蚕的ＸＯ型可能是由ＸＹ型中的Ｙ染色体缺失所致，而栗蚕的Ｘ染色体则可能是由Ｘ和Ｙ染色体融d合为一条而成。
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| 关 键 词： | 蓖麻蚕，栗蚕，XO型，性染色体，演化 |
STUDIES ON SEX CHROMOSOMES OF THE SILKWORMS,PHILOSAMIA CYNTHIA RICINI AND DICTYOPLOCA JAPONICA |
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| Song Fangzhou,Xiang Zhonghuai,Liu Shaolan.STUDIES ON SEX CHROMOSOMES OF THE SILKWORMS,PHILOSAMIA CYNTHIA RICINI AND DICTYOPLOCA JAPONICA[J].Acta Sericologica Sinica,1996,22(3):170-174. |
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| Authors: | Song Fangzhou Xiang Zhonghuai Liu Shaolan |
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| Abstract: | X Chromosomes during the prophase of the cell meiosis in the female sikworms ofPhilosamia cynthia ricini and Dictyoploca japonica were observed.The length,the ordi-nal number of X chromosome in the whole chromosome complement and the character ofheterochromatin region in Dictyoploca japonica's X chromosome suggested that the XOpattern,to female Philosamia cvnthia ricini,was in accord with the second view:whileto female Dictyoploca japonica,it might occur in Y chromosome mergihg into X chromo-Some. |
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| Keywords: | philosamia cynthia ricini Dictyoploca japonica XO pattern Sex Chromosome Evolution |
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