| 不同园艺风信子品种核型比较分析 |
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| 引用本文： | 苏晓倩,王斐胡,凤荣.不同园艺风信子品种核型比较分析[J].分子植物育种,2020(12):4053-4059. |
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| 作者姓名： | 苏晓倩 王斐胡 凤荣 |
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| 作者单位： | 南京林业大学风景园林学院 |
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| 基金项目： | 林业科技成果国家级推广项目(201520);江苏高校品牌专业建设工程资助项目(PPZY2015A063)共同资助。 |
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| 摘 要： | 本研究采用常规根尖压片法对‘Pink pearl’,‘Gipsy Princess’,‘Blue pearl’3个二倍体风信子品种进行根尖染色体核型分析。结果显示,3个园艺风信子品种染色体组成较为一致,均由中部(m)、近中部(sm)及近端(st)着丝粒染色体组成,均含有1对随体,但不同类型染色体的数量分布存在一定差异。其核型公式分别为‘Pink pearl’2n=2x=16=6m+4sm+2sm(sat)+4st,‘Gipsy Princess’2n=2x=16=6m+4sm+2sm(sat)+4st,‘Blue pearl’2n=2x=16=6m+2m(sat)+6sm+2st。3个品种的核型不对称系数分别为59.85%、61.31%、59.76%,‘Pink pearl’核型类型为2C类型,其他两个品种为2B类型,核型类型显示‘Pink pearl’的进化程度最高。
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| 关 键 词： | 风信子(Hyacinthus orientalis L.) 压片法 染色体 核型 |
Karyotypes Comparative Analysis of Different Hyacinth Horticultural Varieties |
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| Su Xiaoqian,Wang Fei,Hu Fengrong.Karyotypes Comparative Analysis of Different Hyacinth Horticultural Varieties[J].Molecular Plant Breeding,2020(12):4053-4059. |
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| Authors: | Su Xiaoqian Wang Fei Hu Fengrong |
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| Institution: | (College of Landscape Architecture,Nanjing Forestry University,Nanjing,210037) |
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| Abstract: | In this study,root tip karyotype analysis was performed on three diploid hyacinth varieties of'Pink pearl','Gipsy Princess'and'Blue pearl'using conventional apical compression method.The results showed that the chromosome composition of three hyacinth cultivars are similar,all of which are composed of centromere chromosomes of mid(m),near mid(sm)and proximal(st),and contain a pair of satellites,but the number distribution of different types of chromosomes is different.The karyotype formulas are'Pink pearl'2n=2x=16=6m+4sm+2sm(sat)+4st,'Gipsy Princess'2n=2x=16=6m+4sm+2sm(sat)+4st,'Blue pearl'2n=2x=16=6m+2m(sat)+6sm+2st.The karyotype asymmetry coefficients of three cultivars are 59.85%,61.31%,59.76%,'Pink pearl'karyotype is 2C,and the other two cultivars are 2B.The karyotype type shows that'Pink pearl'have the highest degree of evolution. |
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| Keywords: | Hyacinth(Hyacinthus orientalis L ) Tabletting method Chromosome Karyotype |
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