辣椒种间杂交花粉母细胞减数分裂行为研究
研究辣椒种间杂交花粉母细胞减数分裂行为,有助于育种工作者了解辣椒的微观发育行为并掌握辣椒种间杂交不育的具体原因。通过改良的染色体制片方法共观察了从前期I至四分孢子时期的486个花粉母细胞,发现辣椒花粉母细胞减数分裂行为中细胞质分裂类型为同时型,且染色体有多种异常行为。中期Ⅱ的细胞中有23.8%出现染色体滞后现象,另外,在前期Ⅰ、中期Ⅰ、后期Ⅰ中也存在少量的染色体异常行为。末期Ⅱ中产生微核的概率为7.0%。这一结果可以较好地解释辣椒种间杂交花粉育性和结实率低的现象,为进一步创制新的种质提供一定的理论依据。...
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| Published in | 江西农业学报 Vol. 27; no. 6; pp. 1 - 6 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
江苏省农业科学院 蔬菜研究所，江苏 南京 210014
2015
南京农业大学 园艺学院，江苏 南京 210095%江苏省农业科学院 蔬菜研究所,江苏 南京,210014 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-8581 |
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| Abstract | 研究辣椒种间杂交花粉母细胞减数分裂行为,有助于育种工作者了解辣椒的微观发育行为并掌握辣椒种间杂交不育的具体原因。通过改良的染色体制片方法共观察了从前期I至四分孢子时期的486个花粉母细胞,发现辣椒花粉母细胞减数分裂行为中细胞质分裂类型为同时型,且染色体有多种异常行为。中期Ⅱ的细胞中有23.8%出现染色体滞后现象,另外,在前期Ⅰ、中期Ⅰ、后期Ⅰ中也存在少量的染色体异常行为。末期Ⅱ中产生微核的概率为7.0%。这一结果可以较好地解释辣椒种间杂交花粉育性和结实率低的现象,为进一步创制新的种质提供一定的理论依据。 |
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| AbstractList | S641.3; 研究辣椒种间杂交花粉母细胞减数分裂行为，有助于育种工作者了解辣椒的微观发育行为并掌握辣椒种间杂交不育的具体原因。通过改良的染色体制片方法共观察了从前期I至四分孢子时期的486个花粉母细胞，发现辣椒花粉母细胞减数分裂行为中细胞质分裂类型为同时型，且染色体有多种异常行为。中期Ⅱ的细胞中有23．8％出现染色体滞后现象，另外，在前期Ⅰ、中期Ⅰ、后期Ⅰ中也存在少量的染色体异常行为。末期Ⅱ中产生微核的概率为7．0％。这一结果可以较好地解释辣椒种间杂交花粉育性和结实率低的现象，为进一步创制新的种质提供一定的理论依据。 研究辣椒种间杂交花粉母细胞减数分裂行为,有助于育种工作者了解辣椒的微观发育行为并掌握辣椒种间杂交不育的具体原因。通过改良的染色体制片方法共观察了从前期I至四分孢子时期的486个花粉母细胞,发现辣椒花粉母细胞减数分裂行为中细胞质分裂类型为同时型,且染色体有多种异常行为。中期Ⅱ的细胞中有23.8%出现染色体滞后现象,另外,在前期Ⅰ、中期Ⅰ、后期Ⅰ中也存在少量的染色体异常行为。末期Ⅱ中产生微核的概率为7.0%。这一结果可以较好地解释辣椒种间杂交花粉育性和结实率低的现象,为进一步创制新的种质提供一定的理论依据。 |
| Abstract_FL | The research on the meiosis behavior of pollen mother cells in pepper interspecific hybrids can help breeders to un-derstand the microcosmic developmental behavior of pepper and to grasp the definite reasons for pepper interspecific hybrid sterility. In this experiment, the improved chromosome microslide-preparing method was used to observe 486 pepper pollen mother cells from prophaseⅠto quartet stage.It was found that the cytokinesis of pepper pollen mother cells in meiosis behavior was of simultaneous type, and the chromosomes had multiple abnormal behaviors.Chromosome hysteresis occurred in 23.8%of metaphase-Ⅱ cells.In addition, a small quantity of chromosomal abnormal behaviors existed in the cells at prophaseⅠ, metaphaseⅠ, and anaphaseⅠ. The probability of producing micronuclei in the cells at anaphaseⅡwas 7.0%.This result can better explain why pepper interspecif-ic hybrid had low pollen fertility and low seed-setting rate, and can provide a theoretical basis for the further creation of new pepper germplasms. |
| Author | 刘娜 刁卫平 郭广君 潘宝贵 戈伟 许亚池 王述彬 刘金兵 |
| AuthorAffiliation | 江苏省农业科学院蔬菜研究所,江苏南京210014 南京农业大学园艺学院,江苏南京210095 |
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| Author_FL | LIU Jin-bing LIU Na DIAO Wei-ping GUO Guang-jun WANG Shu-bin PAN Bao-gui GE Wei XU Ya-chi |
| Author_FL_xml | – sequence: 1 fullname: LIU Na – sequence: 2 fullname: DIAO Wei-ping – sequence: 3 fullname: GUO Guang-jun – sequence: 4 fullname: PAN Bao-gui – sequence: 5 fullname: GE Wei – sequence: 6 fullname: XU Ya-chi – sequence: 7 fullname: WANG Shu-bin – sequence: 8 fullname: LIU Jin-bing |
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| DocumentTitleAlternate | Research on Meiosis of Pollen Mother Cells in Pepper Interspecific Hybrids |
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| Keywords | 花粉母细胞 种间杂交 Pepper Interspecific hybridization Pollen mother cell 减数分裂 Meiosis 辣椒 |
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| Notes | LIU Na, DIAO Wei-ping, GUO Guang-jun, PAN Bao-gui, GE Wei, XU Ya-chi, WANG Shu-bin, LIU Jin-bing （ 1. Institute of Vegetable Crops, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; 2. College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China） Pepper;Interspecific hybridization;Pollen mother cell;Meiosis 36-1124/S The research on the meiosis behavior of pollen mother cells in pepper interspecific hybrids can help breeders to understand the microcosmic developmental behavior of pepper and to grasp the definite reasons for pepper interspecific hybrid sterility. In this experiment, the improved chromosome microslide-preparing method was used to observe 486 pepper pollen mother cells from prophaseⅠto quartet stage.It was found that the cytokinesis of pepper pollen mother cells in meiosis behavior was of simultaneous type, and the chromosomes had multiple abnormal behaviors.Chromosome hysteresis occurred in 23.8%of metaphase-Ⅱ cells.In addition, a small quantity of chromosomal abn |
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| Publisher | 江苏省农业科学院 蔬菜研究所，江苏 南京 210014 南京农业大学 园艺学院，江苏 南京 210095%江苏省农业科学院 蔬菜研究所,江苏 南京,210014 |
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| SubjectTerms | 减数分裂 种间杂交 花粉母细胞 辣椒 |
| Title | 辣椒种间杂交花粉母细胞减数分裂行为研究 |
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