CYTOTAXONOMICAL STUDIES OF SOUTH INDIAN URTICACEAE
CYTOTAXONOMICAL STUDIES OF SOUTH INDIAN URTICACEAE
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DOI：
10.1508/cytologia.53.671
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发表时间：
1988-12-01
期刊：
影响因子：
1
通讯作者：
THILAGAVATHY, A
中科院分区：
文献类型：
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作者：
SUBRAMANIAN, D;THILAGAVATHY, A
对南印度荨麻科7属17种植物进行了细胞分类学研究。在1号中首次记录了染色体数目。Laportea terminalis，2.线叶弹茎草、3. E. surculosum，4.三脉冷水花、5.小叶松（P. microphylla）6.天山雪莲7.匍匐赤车，8. Pouzolzia auriculata，9.聚球藻P. cymosa，10. P. wightii，11. 12. bennettiana 13. p. zeylanica，13. Drougetia diffusa和14.全缘叶紫锥花体细胞染色体数目在18 - 50之间。n = 10可以是初级基本染色体数，n = 12可以是衍生基本染色体数。所有其他的数字可能是通过整倍体和非整倍体产生的。核型分析表明，每个物种都有不同的核型。因此，染色体的核型改变与已经讨论过的非整倍体和整倍体一样，沿着在物种形成中起重要作用。
Cytotaxonomical studies have been made in 17 species coming under 7 genera of South Indian Urticaceae. First record of chromosome number has been made in 1. Laportea terminalis, 2. Elastostemma lineolatum, 3. E. surculosum, 4. Pilea trinervia, 5. P. microphylla, 6. P. involucrata, 7. Pellionia repens, 8. Pouzolzia auriculata, 9. P. cymosa, 10. P. wightii, 11. P. bennettiana, 12. P. zeylanica, 13. Drougetia diffusa, and 14. Villebrunea integrifolia. The somatic chromosome number ranges from 18 to 50 among the species studied. n = 10 may be the primary basic chromosome number and n = 12 derived basic chromosome number. All the other numbers might have been produced by means of euploidy and aneuploidy. The karyotype analyses show that each and every species has a distinct karyotype. Therefore, karyotype alteration of chromosomes play important role in speciation along with aneuploidy and euploidy already discussed.