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对天然四倍体红江橙与其二倍体的植株形态学和基因组遗传组成进行了比较.天然四倍体红江橙植株表现出与二倍体明显不同的植株形态特征,尤其是:生长较缓慢,树冠较小,树高与干周为二倍体的0.89和0.83倍;春梢长度仅为二倍体的0.7倍,春梢成熟叶片叶形指数减小,为二倍体的0.87倍,叶片厚度增加明显,为二倍体的1.36倍、对天然红江橙四倍体基因组遗传组成的GISH与SSR分析显示,天然四倍体红江橙是由二倍体加倍而来的同源四倍体,但又与二倍体基因组的遗传组成存在DNA水平上的变异.
The morphological and genomic genetic comparisons of natural tetraploid plants of Hongjiang orange and their diploids were compared.Natural tetraploid plants of Hongjiang orange showed distinct morphological characteristics of plants that differed from diploid ones, Slowly, the canopy is smaller, the tree height and the dry week are 0.89 and 0.83 times of the diploid; the spring shoot length is only 0.7 times that of the diploid, the leaf index of mature leaves of spring shoot decreases, which is 0.87 times of the diploid , Leaf thickness increased significantly, 1.36 times that of diploid, the Gans and SSR analysis of genetic composition of the natural Hongjiang orange tetraploid genome showed that the natural tetraploid Hongjiang orange is derived from the doubled diploid homologous Tetraploid, but with the genetic composition of the diploid genome there is a variation in the level of DNA.