| 从油菜6个物种的核型分析追溯其进化和关系 |
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| 引用本文： | 杜新 唐泽静. 从油菜6个物种的核型分析追溯其进化和关系[J]. 西南大学学报(自然科学版), 1989, 11(3): 275-278 |
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| 作者姓名： | 杜新 唐泽静 |
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| 作者单位： | 西南农业大学农学系，西南农业大学农学系 |
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| 摘 要： | 本文对欧洲油菜(B.napuo)和日本油菜(B.napella)的核型进行了比较分析。结果表明,它们之间差异较大,为欧洲油菜和日本油菜区分为两个种或种以下的变种的论点提供了细胞遗传学依据。
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| 关 键 词： | 油菜 物种 核型 细胞遗传学 进化 |
THE ANALYSIS OF KARYOTYPE AS AN AID IN TRACING THE EVOLUTION AND RELATIONS AMONG THE SIX SPECIES OF OIL-SEED RAPE |
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| Du Xin,Tang Zejing Deprtaenmt of Agrinomy,Southwest Agricultural University. THE ANALYSIS OF KARYOTYPE AS AN AID IN TRACING THE EVOLUTION AND RELATIONS AMONG THE SIX SPECIES OF OIL-SEED RAPE[J]. Journal of southwest university (Natural science edition), 1989, 11(3): 275-278 |
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| Authors: | Du Xin Tang Zejing Deprtaenmt of Agrinomy Southwest Agricultural University |
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| Abstract: | From the karyotype analysis among the six allies species of genus Brassica, their evolaution degree their evolution path and their relations were drscussed. In the six allied species the synthetic species were syntheted from the elementary species, and the elementary species were evoluted from an original species in which chromosome number were six (n=6), There were close relation among them, but during the evolution, under various natural and cultivated conditions, they have varieted with different digrees and directions. Meanwhile the karyotypes of B. napus and B. napella, were analysed. the results indicated that there were a greater difference between them, it supported in cytogenetics that B. napus and B. napella might be divided into two species or two varieties under the species. |
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| Keywords: | Brassica spp species idiogram evolution cytogenetics. |
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