A comparative study of karyotypes in two species of Byblis (Byblidaceae)
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- Hoshi Yoshikazu
- Department of Plant Science, School of Agriculture, Kyushu Tokai University
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- Fukushima Kenji
- Department of Plant Science, School of Agriculture, Kyushu Tokai University
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- Nagano Katsuya
- Department of Plant Science, School of Agriculture, Kyushu Tokai University
説明
Byblis filifolia and B. liniflora had the diploidal and the tetraploidal chromosome numbers of 2n=16 and 32, respectively. In condensation behavior from prophase to metaphase, most chromosomes of both species had early condensing segments at the proximal regions. At prometaphase and early-metaphase, all chromosomes except for some small sized chromosomes had decondense segments at the distal regions in both arms. At mid-metaphase, well-spread chromosomes were quite rare to obtain, because all chromosomes at mid-metaphase stage were quite sticky nature, but not earlier stages of metaphase and prophase. The metaphase chromosomes in both species showed a gradual decrease in size from the largest to the smallest. In B. filifolia, total chromosome length at early-metaphase was 40.5 μm, while total chromosome length at mid-metaphase was 23.3 μm. In contrast, B. liniflora showed total chromosome length of 106.1 μm at early-metaphase, and 54.0 μm at mid-metaphase. To compare to the same stage of metaphase, the total length in B. liniflora was nearly twice as long as that of B. filifolia. Two sat-chromosomes were observed in both species.
収録刊行物
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- Chromosome Botany
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Chromosome Botany 2 (1), 39-43, 2007
国際染色体植物学会
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詳細情報 詳細情報について
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- CRID
- 1390282680260624128
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- NII論文ID
- 130000058157
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- ISSN
- 18818285
- 18815936
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用不可
