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- W2370476936 abstract "In this paper,the meiotic behavior of microsporocytes and microspore development in Zephyranthes grandiflora(2n=48)were investigated.The results indicated that there was obvious difference of meiotic behavior in Z.grandiflora plants from the same population.In most plants,lagging chromosome,micronucleolus and other abnormal meiotic behavior could be observed,with an average of 14.02% microsporocytes segregating abnormally. Microspores developed normally,but no fertile pollens could be obtained. Form the abnormal meiotic behavior of microsporocyte in anaphase Ⅰ,it could be proved that the Z.grandiflora was a heterozygote of paracentric inversion for the first time. The meiosis of microsporocyte of a few mutant plants showed disorderly greatly,and multi-polar separation and lagging chromosomes could be readily in anaphase Ⅰ,with and average of up to 94.3% abnormal segregating ate.At tetraspore stage,paraspores raised up to 73.4%.It is thought that abnormality of meiosis in Z.grandiflora was ascribed mainly to chromosome structure variation,and the reason of the behavior abnormality of the meiosis in mutant plants was due to gene mutation that controling the spindle formation,in addition to chromosome structure variation." @default.
- W2370476936 created "2016-06-24" @default.
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- W2370476936 date "2008-01-01" @default.
- W2370476936 modified "2023-09-23" @default.
- W2370476936 title "Genetic analysis of meiotic behavior difference in plants from the same population of Zephyranthes grandiflora" @default.
- W2370476936 hasPublicationYear "2008" @default.
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