| 自然单倍体川桑的发现与研究 |
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| 引用本文： | 余茂德 向仲怀. 自然单倍体川桑的发现与研究[J]. 蚕业科学, 1996, 22(2): 67-71 |
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| 作者姓名： | 余茂德 向仲怀 |
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| 作者单位： | 西南农业大学蚕桑丝绸学院 |
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| 摘 要： | 经对川桑（Ｍ．ｎｏｔａｂｉｌｉｓＳ．）作体细胞染色体倍数性鉴定，发现体细胞染色体数为１４条，是通常二倍体桑的一半，初步认为是自然单倍体桑。对川桑的组织构造、同工酶谱等作了调查，并与二倍体纳溪桑、小官桑作了比较，经对川桑和多个其它桑种初步作ＲＡＰＤ研究，川桑与其它桑种亲缘关系都很远，推测它可能是桑属中分化最早的种。
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| 关 键 词： | 桑树，自然单倍体，川桑 |
THE DISCOVEKY AND STUDY ON A NATURAL HAPLOID MORUS NOT ABILIS SCHNEID |
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| Yu Maode,Xiang Zhonghuai,Feng Lichun,Ke Yifu,Zhang Xiaoyong,Jing Chengjun. THE DISCOVEKY AND STUDY ON A NATURAL HAPLOID MORUS NOT ABILIS SCHNEID[J]. Acta Sericologica Sinica, 1996, 22(2): 67-71 |
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| Authors: | Yu Maode Xiang Zhonghuai Feng Lichun Ke Yifu Zhang Xiaoyong Jing Chengjun |
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| Abstract: | Bymeans ofChromosome ploidy identification,we have discovered that M.notabilis Scneid has 14 chron1osomes in one somEitic cell,a half of the normaldiploidy mulberries.Thus it is preliminarily regarded as a natural haploid.Its morphological structures and bands of isozymes were investigated and compared with two diploidy mulberries,i.e.Naxi Sang and Xiaoguan Sang,Additionally,RAPD of M.notabilis S.and other mulber-ry species were studied.The results showed that the consanguinity relationship between M. notabilis S.and all other mulberry species is very far,implying that M. notabilis S.is possibly a species that differentiated the earliest in the genus of Morus. |
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| Keywords: | Mulberry Natural hapoid M.notabilis Schneid |
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