Comparative analysis on the distribution of heterochromatin in Citrus, Poncirus and Fortunella chromosomes
| ISSN: |
1573-6849
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|---|---|
| Keywords: |
chromosome banding ; citrus ; fluorochrome ; heterochromatin ; karyotype ; evolution
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| Source: |
Springer Online Journal Archives 1860-2000
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| Topics: |
Biology
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| Notes: |
Abstract Double fluorochrome staining with chromomycin A3 (CMA) and 4′-6-diamidino-2-phenylindole (DAPI) was used to characterize and compare the distribution of constitutive heterochromatin along chromosomes of Citrus, Poncirus and Fortunella species. Only CMA-positive bands were distinguishable in metaphase chromosomes. Preferential distribution of heterochromatin in terminal regions, mainly of the long arm, and centromeric regions of a few long chromosomes was a common feature of these genera. Heteromorphism between possible homologous chromosomes was present in the majority of species. Citrus and Poncirus revealed some remarkably uniform chromosomes without any intensively fluorescing region, whereas Fortunella cultivars were differentiated by the presence of CMA bands in all chromosomes. Through measurements assisted by a computer, amounts of CMA-positive regions were shown to be highest in Fortunella. Similarities between Citrus and Poncirus suggest little heterochromatin diversification among karyotypes of these genera, whereas Fortunella, with higher amounts and more homogenous distribution of heterochromatin, is more divergent.
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| Type of Medium: |
Electronic Resource
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| URL: |
| _version_ | 1798296871986266114 |
|---|---|
| autor | Miranda, M. Ikeda, F. Endo, T. Moriguchi, T. Omura, M. |
| autorsonst | Miranda, M. Ikeda, F. Endo, T. Moriguchi, T. Omura, M. |
| book_url | http://dx.doi.org/10.1023/A:1018409922843 |
| datenlieferant | nat_lic_papers |
| hauptsatz | hsatz_simple |
| identnr | NLM193581388 |
| iqvoc_descriptor_title | iqvoc_00000708:analysis |
| issn | 1573-6849 |
| journal_name | Chromosome research |
| materialart | 1 |
| notes | Abstract Double fluorochrome staining with chromomycin A3 (CMA) and 4′-6-diamidino-2-phenylindole (DAPI) was used to characterize and compare the distribution of constitutive heterochromatin along chromosomes of Citrus, Poncirus and Fortunella species. Only CMA-positive bands were distinguishable in metaphase chromosomes. Preferential distribution of heterochromatin in terminal regions, mainly of the long arm, and centromeric regions of a few long chromosomes was a common feature of these genera. Heteromorphism between possible homologous chromosomes was present in the majority of species. Citrus and Poncirus revealed some remarkably uniform chromosomes without any intensively fluorescing region, whereas Fortunella cultivars were differentiated by the presence of CMA bands in all chromosomes. Through measurements assisted by a computer, amounts of CMA-positive regions were shown to be highest in Fortunella. Similarities between Citrus and Poncirus suggest little heterochromatin diversification among karyotypes of these genera, whereas Fortunella, with higher amounts and more homogenous distribution of heterochromatin, is more divergent. |
| package_name | Springer |
| publikationsjahr_anzeige | 1997 |
| publikationsjahr_facette | 1997 |
| publikationsjahr_intervall | 8004:1995-1999 |
| publikationsjahr_sort | 1997 |
| publisher | Springer |
| reference | 5 (1997), S. 86-92 |
| schlagwort | chromosome banding citrus fluorochrome heterochromatin karyotype evolution |
| search_space | articles |
| shingle_author_1 | Miranda, M. Ikeda, F. Endo, T. Moriguchi, T. Omura, M. |
| shingle_author_2 | Miranda, M. Ikeda, F. Endo, T. Moriguchi, T. Omura, M. |
| shingle_author_3 | Miranda, M. Ikeda, F. Endo, T. Moriguchi, T. Omura, M. |
| shingle_author_4 | Miranda, M. Ikeda, F. Endo, T. Moriguchi, T. Omura, M. |
| shingle_catch_all_1 | Miranda, M. Ikeda, F. Endo, T. Moriguchi, T. Omura, M. Comparative analysis on the distribution of heterochromatin in Citrus, Poncirus and Fortunella chromosomes chromosome banding citrus fluorochrome heterochromatin karyotype evolution chromosome banding citrus fluorochrome heterochromatin karyotype evolution Abstract Double fluorochrome staining with chromomycin A3 (CMA) and 4′-6-diamidino-2-phenylindole (DAPI) was used to characterize and compare the distribution of constitutive heterochromatin along chromosomes of Citrus, Poncirus and Fortunella species. Only CMA-positive bands were distinguishable in metaphase chromosomes. Preferential distribution of heterochromatin in terminal regions, mainly of the long arm, and centromeric regions of a few long chromosomes was a common feature of these genera. Heteromorphism between possible homologous chromosomes was present in the majority of species. Citrus and Poncirus revealed some remarkably uniform chromosomes without any intensively fluorescing region, whereas Fortunella cultivars were differentiated by the presence of CMA bands in all chromosomes. Through measurements assisted by a computer, amounts of CMA-positive regions were shown to be highest in Fortunella. Similarities between Citrus and Poncirus suggest little heterochromatin diversification among karyotypes of these genera, whereas Fortunella, with higher amounts and more homogenous distribution of heterochromatin, is more divergent. 1573-6849 15736849 Springer |
| shingle_catch_all_2 | Miranda, M. Ikeda, F. Endo, T. Moriguchi, T. Omura, M. Comparative analysis on the distribution of heterochromatin in Citrus, Poncirus and Fortunella chromosomes chromosome banding citrus fluorochrome heterochromatin karyotype evolution chromosome banding citrus fluorochrome heterochromatin karyotype evolution Abstract Double fluorochrome staining with chromomycin A3 (CMA) and 4′-6-diamidino-2-phenylindole (DAPI) was used to characterize and compare the distribution of constitutive heterochromatin along chromosomes of Citrus, Poncirus and Fortunella species. Only CMA-positive bands were distinguishable in metaphase chromosomes. Preferential distribution of heterochromatin in terminal regions, mainly of the long arm, and centromeric regions of a few long chromosomes was a common feature of these genera. Heteromorphism between possible homologous chromosomes was present in the majority of species. Citrus and Poncirus revealed some remarkably uniform chromosomes without any intensively fluorescing region, whereas Fortunella cultivars were differentiated by the presence of CMA bands in all chromosomes. Through measurements assisted by a computer, amounts of CMA-positive regions were shown to be highest in Fortunella. Similarities between Citrus and Poncirus suggest little heterochromatin diversification among karyotypes of these genera, whereas Fortunella, with higher amounts and more homogenous distribution of heterochromatin, is more divergent. 1573-6849 15736849 Springer |
| shingle_catch_all_3 | Miranda, M. Ikeda, F. Endo, T. Moriguchi, T. Omura, M. Comparative analysis on the distribution of heterochromatin in Citrus, Poncirus and Fortunella chromosomes chromosome banding citrus fluorochrome heterochromatin karyotype evolution chromosome banding citrus fluorochrome heterochromatin karyotype evolution Abstract Double fluorochrome staining with chromomycin A3 (CMA) and 4′-6-diamidino-2-phenylindole (DAPI) was used to characterize and compare the distribution of constitutive heterochromatin along chromosomes of Citrus, Poncirus and Fortunella species. Only CMA-positive bands were distinguishable in metaphase chromosomes. Preferential distribution of heterochromatin in terminal regions, mainly of the long arm, and centromeric regions of a few long chromosomes was a common feature of these genera. Heteromorphism between possible homologous chromosomes was present in the majority of species. Citrus and Poncirus revealed some remarkably uniform chromosomes without any intensively fluorescing region, whereas Fortunella cultivars were differentiated by the presence of CMA bands in all chromosomes. Through measurements assisted by a computer, amounts of CMA-positive regions were shown to be highest in Fortunella. Similarities between Citrus and Poncirus suggest little heterochromatin diversification among karyotypes of these genera, whereas Fortunella, with higher amounts and more homogenous distribution of heterochromatin, is more divergent. 1573-6849 15736849 Springer |
| shingle_catch_all_4 | Miranda, M. Ikeda, F. Endo, T. Moriguchi, T. Omura, M. Comparative analysis on the distribution of heterochromatin in Citrus, Poncirus and Fortunella chromosomes chromosome banding citrus fluorochrome heterochromatin karyotype evolution chromosome banding citrus fluorochrome heterochromatin karyotype evolution Abstract Double fluorochrome staining with chromomycin A3 (CMA) and 4′-6-diamidino-2-phenylindole (DAPI) was used to characterize and compare the distribution of constitutive heterochromatin along chromosomes of Citrus, Poncirus and Fortunella species. Only CMA-positive bands were distinguishable in metaphase chromosomes. Preferential distribution of heterochromatin in terminal regions, mainly of the long arm, and centromeric regions of a few long chromosomes was a common feature of these genera. Heteromorphism between possible homologous chromosomes was present in the majority of species. Citrus and Poncirus revealed some remarkably uniform chromosomes without any intensively fluorescing region, whereas Fortunella cultivars were differentiated by the presence of CMA bands in all chromosomes. Through measurements assisted by a computer, amounts of CMA-positive regions were shown to be highest in Fortunella. Similarities between Citrus and Poncirus suggest little heterochromatin diversification among karyotypes of these genera, whereas Fortunella, with higher amounts and more homogenous distribution of heterochromatin, is more divergent. 1573-6849 15736849 Springer |
| shingle_title_1 | Comparative analysis on the distribution of heterochromatin in Citrus, Poncirus and Fortunella chromosomes |
| shingle_title_2 | Comparative analysis on the distribution of heterochromatin in Citrus, Poncirus and Fortunella chromosomes |
| shingle_title_3 | Comparative analysis on the distribution of heterochromatin in Citrus, Poncirus and Fortunella chromosomes |
| shingle_title_4 | Comparative analysis on the distribution of heterochromatin in Citrus, Poncirus and Fortunella chromosomes |
| sigel_instance_filter | dkfz geomar wilbert ipn albert fhp |
| source_archive | Springer Online Journal Archives 1860-2000 |
| timestamp | 2024-05-06T09:58:57.420Z |
| titel | Comparative analysis on the distribution of heterochromatin in Citrus, Poncirus and Fortunella chromosomes |
| titel_suche | Comparative analysis on the distribution of heterochromatin in Citrus, Poncirus and Fortunella chromosomes |
| topic | W |
| uid | nat_lic_papers_NLM193581388 |