Reversible Fluorescent Banding Analysis in Six Wild <i>Corchorus</i> Species from Bangladesh
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- Afroz Mahin
- Department of Botany, University of Dhaka Department of Botany, University of Barishal
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- Sultana Syeda Sharmeen
- Department of Botany, University of Dhaka
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- Sarker Rakha Hari
- Department of Botany, University of Dhaka
抄録
<p>Fluorescence chromosome bandings with CMA- and DAPI- were analyzed in six wild Corchorus species to find out the diversity in the number and location of AT- and GC-rich sequences. These six wild Corchorus species had variation in somatic chromosome numbers viz. C. brevicornatus (2n=14), C. septentrionalis (2n=14), C. urticifolius (2n=14), C. hirtus (2n=28), C. siliquosus (2n=28) and C. pinnatipartitus (2n=78). A wide range of CMA- and DAPI-positive bands were found in the metaphase chromosomes of six wild Corchorus species. A total number of 35 and 32 terminal CMA- and DAPI-bands were generated which recommended the tendency of accumulation of GC- and AT-rich sequences at the terminal region of chromosomes, respectively. In some species, CMA-banded satellites were extended in prometaphase while contracted at the terminal region of the short arm in the metaphase stage. Reshuffling of chromosomal segments was detected following CMA- and DAPI-banding. After reversible fluorescent banding, C. brevicornatus, C. urticifolius and C. siliquosus had a few CMA-positive and DAPI- negative banded chromosomes which could be used as marker chromosomes. In addition, few chromosomes of C. pinnatipartitus could be used as markers due to their unique DAPI-banding pattern. Each species had its characteristic CMA- and DAPI-banding pattern.</p>
収録刊行物
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- CYTOLOGIA
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CYTOLOGIA 88 (1), 45-49, 2023-03-25
公益財団法人 日本メンデル協会
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詳細情報 詳細情報について
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- CRID
- 1390014093883973888
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- ISSN
- 13487019
- 00114545
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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
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- 抄録ライセンスフラグ
- 使用不可