| 油杉染色体核型的研究 |
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| 引用本文： | 吴文珊,张清其.油杉染色体核型的研究[J].福建师范大学学报(自然科学版),1993,9(1):74-77. |
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| 作者姓名： | 吴文珊 张清其 |
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| 作者单位： | 福建师范大学生物系，福建师范大学生物系，福建师范大学生物系 |
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| 摘 要： | 本文研究了油杉Keteleeria,fortunei(Murr.)Carr.的核型,将该油杉与江南油杉K.cyclolepis Flous、台湾油杉K.formosana Hayata、黄枝油杉K.calcarea Cheng et L.K.Fu和矩鳞油杉K.oblonga Cheng et L.K.Fu的核型比较,讨论了五种油杉核型进化趋势。油杉的核型公式为K(2n)=24=18m(2SAT)+6sm,第6号染色体具随体,在第2、3、6、7号染色体短臂上具次缢痕,属较对称的“2A”核型,五种油杉的进化趋势为江南油杉→矩鳞油杉→油杉→黄枝油杉→台湾油杉。
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| 关 键 词： | 油杉 染色体组型 松科 |
Karyotype Studies of Keteleeria fortunei |
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| Wu Wenshan Zhang Qingqi Liu Jiangqiu.Karyotype Studies of Keteleeria fortunei[J].Journal of Fujian Teachers University(Natural Science),1993,9(1):74-77. |
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| Authors: | Wu Wenshan Zhang Qingqi Liu Jiangqiu |
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| Institution: | Department of Biology |
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| Abstract: | In the present paper the karyotype of Keteleeria fortunei (Murr.) Cart. is reported, and it is compared with those of K. cyclolepis Flous, K. formosan Hayata K. calcarea Cheng et L. K. Fu and K. oblonga Cheng et L. K. Fu. The karyotype formula of K. fortunei is K(2n)=24=18m (2SAT)+6sm. It belongs to "2A" type of karyotype symmetry. There are secondary constrictions on the short arms of 2th, 3th, 6th, 7th chromosome pairs. The 6th pairs have SAT-chromosomes. K. fortunei(Murr.) Cart. is more advanced than K. oblonga Cheng et L. K. Fu, but more primitive than K. calcarea Cheng et L. K. Fu. K. formosana Hayata is the most advanced among the five species in karyotype, and K. cyclolepis Flous is the most primitive. |
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| Keywords: | Keteleeria fortunei (Murr )Carr karyotype |
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