The size of pollen grain of the genus Triticum L
The size of pollen grain of the genus Triticum L
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DOI：
10.1007/bf02920668
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发表时间：
1960-01-01
期刊：
影响因子：
1.5
通讯作者：
CETL, IVO
中科院分区：
文献类型：
--
作者：
CETL, IVO
在乙卡红永久性制剂上测定了8个种的15个标本的花粉粒大小，形成了天然的多倍体系列。不同种小麦的花粉粒平均体积随62号染色体数目的增加而增大，二倍体组为10[亩]3，四倍体组为96.10[亩]3(蒂莫菲维小麦为73.10[亩]3)，六倍体组为118.10/[亩]3。花粉粒的体积并不代表染色体数目的相应倍数：这种不一致的原因显然在于小麦属多倍体系列的异源多倍体。遗传上不同的基因组A、B、D和G可能对花粉粒大小产生不同的影响。基因组B占基因组A的62%，基因组D占29%，基因组G占18%。
The pollen grain size of 15 specimens belonging to 8 species and forming a natural polyploid series was determined on permanent acetocarmine preparations. The pollen grain mean volumes of different Triticum species tend to grow with the increasing number of chromosomes 62: 10 [mu]3 for the diploid group, 96.10 [mu]3 for the tetraploid group (73.10 [mu]3 for T. timopheevi.), and 118.10 /[mu]3 for the hexaploid group. The volume of the pollen grain does not represent a corresponding multiple of the chromosome number: the reason for this disagreement lies apparently in the allopolyploidy of the polyploid series of the genus Triticum. The genetically different genomes A, B, D, and G probably exert a different effect on the pollen grain size. Genome B shows 62%, genome D 29%, and genome G 18% of the effect of genome A. || ABSTRACT AUTHORS: 2. Sestak