| 我国梨属植物染色体核型研究（一） |
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| 引用本文： | .蒲富慎,.林盛华；.宋文芹；.陈瑞阳；.李秀兰. 我国梨属植物染色体核型研究（一）[J]. 武汉植物学研究, 1985, 3(4): 381-387 |
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| 作者姓名： | .蒲富慎 .林盛华；.宋文芹；.陈瑞阳；.李秀兰 |
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| 作者单位： | 1.中国农科院果树研究所；2.南开大学生物系 |
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| 摘 要： | 本文对5种梨属植物即褐梨、杜梨、新疆梨、河北梨、麻梨的核型进行了研究。结果表明:褐梨的核型2n=2x=34=24m+10sm(2SAT)与杜梨2n=2x=34=24m+10sm相似,自成一个种群。而新疆梨、河北梨的核型均为2n=2x=34=16m+18sm(2SAT),麻梨为2n=2x=34=16m+18sm,三者的核型相近,属于另一个种群。前一种群相对原始一些,而后一群则属天然杂交的次生种。
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| 关 键 词： | 梨属；染色体数目；核型 |
STUDIES ON KARYOTYPES OF PYRUS IN CHINA (1) |
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| Pu Fushen and Lin Shenghua. STUDIES ON KARYOTYPES OF PYRUS IN CHINA (1)[J]. Journal of Wuhan Botanical Research, 1985, 3(4): 381-387 |
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| Authors: | Pu Fushen and Lin Shenghua |
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| Affiliation: | 1.Research Institute of Pomology, Chinese Academy of Agricultural Sciences, Xingcheng, Liaoning; 2.Department of Biology, Nankai University, Tianjin |
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| Abstract: | In this paper the karyotypes of 5 pear species in China were analysed. The result indicates that the karyotype of Pyrus phacocarpa, 2n=2x=34=24m+10sm(2SAT), is similar to that of P. betulaefolia, 2n=2x=34=24m+10sm, and thus they belong to the same group of species; the karyotypes of P. sinkiangensis and P. hopeihensis are identical, 2n = 2x = 34 = 16m + 18sm(2SAT), and are similar to that of P. serrulata, making up another group of species. In the two groups of species the former is relatively primitive and the latter seems to be a secondary one, derived from natural hybridization. |
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| Keywords: | Pyrus Chromosome number Karyotype |
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