| 银杉的染色体数目和形态 |
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| 引用本文： | 朱至清,孙敬三.银杉的染色体数目和形态[J].中国科学院研究生院学报,1981,19(4):444-446. |
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| 作者姓名： | 朱至清 孙敬三 |
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| 作者单位： | (中国科学院植物研究所) |
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| 摘 要： | 银杉(Cathaya argyrophylla)的体细胞具有24个染色体(2n＝24)，其中一
对为近端着丝点染色体，其余为中部或近中着丝点染色体。从染色体数目看，银杉与松科多数属相同，但与黄杉属(Pseudotsuga)(2n＝26)不同。
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Chromosome numbers and morphology in Cathaya |
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| Chu Chih-Ching,Sun Ching-San.Chromosome numbers and morphology in Cathaya[J].Journal of the Graduate School of the Chinese Academy of Sciences,1981,19(4):444-446. |
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| Authors: | Chu Chih-Ching Sun Ching-San |
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| Institution: | (Institute of Botany, Academia Sinica) |
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| Abstract: | The authors have for the time observed that somatic cell of Cathaya argyrophylla
contains 24 chromosomes (2n=24) (plate I, 3). One pair of them are subtelocentric
chromosomes and the rest are metacentric or submetacentric (Fig. 1). This shows that
Cathaya is similar to most of genera in Pinaceae in chromosome numbers, but different
from Pseutotsuga (2n-26). It seems that Cathaya is not closely related to Pseudot-suga, although its wood anatomy is very similar to that of Pseudotsuga. |
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