Cytogenetic relationships among some palearctic and nearctic tetraploid taxa of the Campanula rotundifolia L. group
The cytogenetic interrelationships between tetraploid representatives of Campanula rotundifolia L. group were investigated. The F1 hybrids derived from the crosses between plants of European and American origin were fully fertile, however, some symptoms of hybrid sterility in F2s and Bs were noted....
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ftdoajarticles:oai:doaj.org/article:28d7af0a091c4eb1b8798eca7f276af1 2023-05-15T15:48:41+02:00 Cytogenetic relationships among some palearctic and nearctic tetraploid taxa of the Campanula rotundifolia L. group Halina Bielawska 2015-01-01T00:00:00Z https://doi.org/10.5586/asbp.1972.022 https://doaj.org/article/28d7af0a091c4eb1b8798eca7f276af1 EN eng Polish Botanical Society https://pbsociety.org.pl/journals/index.php/asbp/article/view/5228 https://doaj.org/toc/2083-9480 2083-9480 doi:10.5586/asbp.1972.022 https://doaj.org/article/28d7af0a091c4eb1b8798eca7f276af1 Acta Societatis Botanicorum Poloniae, Vol 41, Iss 2, Pp 289-300 (2015) Botany QK1-989 article 2015 ftdoajarticles https://doi.org/10.5586/asbp.1972.022 2022-12-31T04:06:03Z The cytogenetic interrelationships between tetraploid representatives of Campanula rotundifolia L. group were investigated. The F1 hybrids derived from the crosses between plants of European and American origin were fully fertile, however, some symptoms of hybrid sterility in F2s and Bs were noted. In the F1 the course of meiosis was normal. In some B segregants the disturbances in synchronization of meiotic divisions were observed. Although in most respect the F1 hybrids were intermediate between their parental forms, in some characters, like the shape of the corolla, the colour of pollen grains and the unrepeating flowering, they resembled more their American parents. No essential genetic barriers between tetraploid representatives of the C. rotundifolia L. group from Europe and North America were found. In view of the present data Guinochet’s hypothesis of the independent origin of European and American tetraploids is rather questionable. Article in Journal/Newspaper Campanula rotundifolia Directory of Open Access Journals: DOAJ Articles Acta Societatis Botanicorum Poloniae 41 2 289 300 |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Botany QK1-989 |
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Botany QK1-989 Halina Bielawska Cytogenetic relationships among some palearctic and nearctic tetraploid taxa of the Campanula rotundifolia L. group |
topic_facet |
Botany QK1-989 |
description |
The cytogenetic interrelationships between tetraploid representatives of Campanula rotundifolia L. group were investigated. The F1 hybrids derived from the crosses between plants of European and American origin were fully fertile, however, some symptoms of hybrid sterility in F2s and Bs were noted. In the F1 the course of meiosis was normal. In some B segregants the disturbances in synchronization of meiotic divisions were observed. Although in most respect the F1 hybrids were intermediate between their parental forms, in some characters, like the shape of the corolla, the colour of pollen grains and the unrepeating flowering, they resembled more their American parents. No essential genetic barriers between tetraploid representatives of the C. rotundifolia L. group from Europe and North America were found. In view of the present data Guinochet’s hypothesis of the independent origin of European and American tetraploids is rather questionable. |
format |
Article in Journal/Newspaper |
author |
Halina Bielawska |
author_facet |
Halina Bielawska |
author_sort |
Halina Bielawska |
title |
Cytogenetic relationships among some palearctic and nearctic tetraploid taxa of the Campanula rotundifolia L. group |
title_short |
Cytogenetic relationships among some palearctic and nearctic tetraploid taxa of the Campanula rotundifolia L. group |
title_full |
Cytogenetic relationships among some palearctic and nearctic tetraploid taxa of the Campanula rotundifolia L. group |
title_fullStr |
Cytogenetic relationships among some palearctic and nearctic tetraploid taxa of the Campanula rotundifolia L. group |
title_full_unstemmed |
Cytogenetic relationships among some palearctic and nearctic tetraploid taxa of the Campanula rotundifolia L. group |
title_sort |
cytogenetic relationships among some palearctic and nearctic tetraploid taxa of the campanula rotundifolia l. group |
publisher |
Polish Botanical Society |
publishDate |
2015 |
url |
https://doi.org/10.5586/asbp.1972.022 https://doaj.org/article/28d7af0a091c4eb1b8798eca7f276af1 |
genre |
Campanula rotundifolia |
genre_facet |
Campanula rotundifolia |
op_source |
Acta Societatis Botanicorum Poloniae, Vol 41, Iss 2, Pp 289-300 (2015) |
op_relation |
https://pbsociety.org.pl/journals/index.php/asbp/article/view/5228 https://doaj.org/toc/2083-9480 2083-9480 doi:10.5586/asbp.1972.022 https://doaj.org/article/28d7af0a091c4eb1b8798eca7f276af1 |
op_doi |
https://doi.org/10.5586/asbp.1972.022 |
container_title |
Acta Societatis Botanicorum Poloniae |
container_volume |
41 |
container_issue |
2 |
container_start_page |
289 |
op_container_end_page |
300 |
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1766383806605950976 |