Yu Liyun, Ye Jianfang. A KARYOTYPE ANAYSIS OF ACACIA MANGIUM WLLD[J]. Journal of Southwest Forestry University, 1997, 17(2): 64-68. DOI: 10.11929/j.issn.2095-1914.1997.02.011
Citation: Yu Liyun, Ye Jianfang. A KARYOTYPE ANAYSIS OF ACACIA MANGIUM WLLD[J]. Journal of Southwest Forestry University, 1997, 17(2): 64-68. DOI: 10.11929/j.issn.2095-1914.1997.02.011
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A KARYOTYPE ANAYSIS OF ACACIA MANGIUM WLLD

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  • The karyotype and chromosome number of Acacia mangium, were analysed on meristematic cell of root tips The result showed that the chromosome number in each somatic cell was 2 n=26 The 9 pairs of chromosomes (No 2, 4, 6, 8~13)were metacentric, and the 4 pairs of chromosomes (No 1, 3, 5, 7)were submetac-entric The first of pairs (No 1)was SAT-chromosome According to the classification made by L C Saylor, the karyotype formula is K(2 n)=26=18 m8 4sm(2 sat) According to the ratio of chromosome length (largest/smallest) and the proportion of chromosomes with arm ratio<2 in the comp/ement of the karyotype of Acacia mangium belongs to Stebbins "1 B" karyotype symmetry.
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