Chromosome Counts for the Asian Myristicaceae (Magnoliales)
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概要
- 論文の詳細を見る
Myristicaceae, a family with pantropical distribution and sister to the rest of the Magnoliales, are poorly understood with respect to chromosome numbers. Here we report somatic chromosome numbers of 14 species in five of the six Asian genera. Chromosome numbers were consistent within individual genera but markedly differ among the genera. Based on our observations, we concluded that the generic base number is x=20 in Endocomia, x=22 in Gymnacranthera and Knema, x=25 in Myristica, and x=26 in Horsfieldia. Although reliable data on chromosome numbers are currently limited to Asian genera, a great divergence in base numbers is a marked contrast to the low molecular divergence within the family, casting a doubt to dating Myristicaceae to be young.
- 2012-10-31
著者
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Oginuma Kazuo
Faculty Of Human Life And Environmental Science Kochi Women's University
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LUM SHAWN
Natural Science & Science Education, NIE, Nanyang Technological University
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TOBE HIROSHI
Graduate School of Science, Kyoto University
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OGINUMA KAZUO
Faculty of Human Life and Environmental Science, University of Kochi
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