| 百合三倍体种间杂种花粉母细胞减数分裂行为观察 |
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| 引用本文： | 雷家军,梁印. 百合三倍体种间杂种花粉母细胞减数分裂行为观察[J]. 吉林农业大学学报, 2012, 34(2): 162-165 |
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| 作者姓名： | 雷家军 梁印 |
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| 作者单位： | 沈阳农业大学园艺学院,沈阳,110866 |
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| 摘 要： | 对细叶百合(2x)×布鲁拉诺(4x)的三倍体种间杂种花粉母细胞减数分裂过程进行了观察,发现三倍体种间杂种减数分裂过程中出现较多异常现象,在双线期出现不等二价体；在后期I和末期工出现染色体桥；在后期Ⅰ、末期Ⅰ、中期Ⅱ和末期Ⅱ出现滞后染色体；在末期Ⅰ和二分体时期出现微核；在末期Ⅰ和后期Ⅱ出现不均等分离等.花粉母细胞减数分裂异常可能是导致花粉败育的主要原因.
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| 关 键 词： | 百合 种间杂交 三倍体 减数分裂 |
Meiosis Observation of Pollen Mother Cells of Triploid Interspecific Hybrids in Lily |
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| LEI Jia-jun , LIANG Yin. Meiosis Observation of Pollen Mother Cells of Triploid Interspecific Hybrids in Lily[J]. Journal of Jilin Agricultural University, 2012, 34(2): 162-165 |
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| Authors: | LEI Jia-jun LIANG Yin |
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| Affiliation: | College of Horticulture,Shenyang Agricultural University,Shenyang 110866,China |
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| Abstract: | The meiosis process of the triploid interspecific hybrid derived from the cross of Lilium pumilum DC.(2n=2x=24) and Asiatic hybrids cv.Brunello(2n=4x=48) were observed.Some abnormal behaviors during meiosis were observed,including unequal bivalents in diplotene,chromosome bridges in anaphase Ⅰ and telophase Ⅰ,lagging chromosomes in anaphase Ⅰ,telophase Ⅰ,metaphase Ⅱ and telophase Ⅱ,micronuclei in telophase Ⅰ and dyad,unequal separation in telophase Ⅰ and anaphase Ⅱ and so on.These abnormal meiosis behaviors of microspore mother cells were responsible for pollen abortion. |
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| Keywords: | Lily(Lilium) interspecific hybridization triploid meiosis |
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