CYTOTAXONOMY OF THE CHARACEAE: KARYOTYPE ANALYSIS OF NITELLA OPACA AND NITELLA FLEXILIS
The haploid chromosome complement of Nitella flexilis ( n = 12) is composed of two quite different basic karyotypes. One of these is symmetrical and appears to be identical to the karyotype of N. opaca ( n = 6), and the other is quite asymmetrical and seems to be identical to that of an apparently u...
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Online Access: | http://dx.doi.org/10.1002/j.1537-2197.1965.tb07272.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fj.1537-2197.1965.tb07272.x https://onlinelibrary.wiley.com/doi/pdf/10.1002/j.1537-2197.1965.tb07272.x http://api.wiley.com/onlinelibrary/chorus/v1/articles/10.1002%2Fj.1537-2197.1965.tb07272.x |
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crwiley:10.1002/j.1537-2197.1965.tb07272.x 2024-06-02T08:10:48+00:00 CYTOTAXONOMY OF THE CHARACEAE: KARYOTYPE ANALYSIS OF NITELLA OPACA AND NITELLA FLEXILIS Sawa, Takashi National Science Foundation 1965 http://dx.doi.org/10.1002/j.1537-2197.1965.tb07272.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fj.1537-2197.1965.tb07272.x https://onlinelibrary.wiley.com/doi/pdf/10.1002/j.1537-2197.1965.tb07272.x http://api.wiley.com/onlinelibrary/chorus/v1/articles/10.1002%2Fj.1537-2197.1965.tb07272.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor American Journal of Botany volume 52, issue 9, page 962-970 ISSN 0002-9122 1537-2197 journal-article 1965 crwiley https://doi.org/10.1002/j.1537-2197.1965.tb07272.x 2024-05-03T12:04:13Z The haploid chromosome complement of Nitella flexilis ( n = 12) is composed of two quite different basic karyotypes. One of these is symmetrical and appears to be identical to the karyotype of N. opaca ( n = 6), and the other is quite asymmetrical and seems to be identical to that of an apparently undescribed dioecious Nitella from Kansas ( n = 6). This may indicate that the monoecious N. flexilis has arisen through hybridization between two dioecious species. Although heteromorphic sex chromosomes were not observed in either species, it appears that female and male potentialities are confined to separate basic chromosome complements and mechanisms determining the monoecious and dioecious states are in close relation to ploidy. Article in Journal/Newspaper Nitella flexilis Wiley Online Library American Journal of Botany 52 9 962 970 |
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Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
The haploid chromosome complement of Nitella flexilis ( n = 12) is composed of two quite different basic karyotypes. One of these is symmetrical and appears to be identical to the karyotype of N. opaca ( n = 6), and the other is quite asymmetrical and seems to be identical to that of an apparently undescribed dioecious Nitella from Kansas ( n = 6). This may indicate that the monoecious N. flexilis has arisen through hybridization between two dioecious species. Although heteromorphic sex chromosomes were not observed in either species, it appears that female and male potentialities are confined to separate basic chromosome complements and mechanisms determining the monoecious and dioecious states are in close relation to ploidy. |
author2 |
National Science Foundation |
format |
Article in Journal/Newspaper |
author |
Sawa, Takashi |
spellingShingle |
Sawa, Takashi CYTOTAXONOMY OF THE CHARACEAE: KARYOTYPE ANALYSIS OF NITELLA OPACA AND NITELLA FLEXILIS |
author_facet |
Sawa, Takashi |
author_sort |
Sawa, Takashi |
title |
CYTOTAXONOMY OF THE CHARACEAE: KARYOTYPE ANALYSIS OF NITELLA OPACA AND NITELLA FLEXILIS |
title_short |
CYTOTAXONOMY OF THE CHARACEAE: KARYOTYPE ANALYSIS OF NITELLA OPACA AND NITELLA FLEXILIS |
title_full |
CYTOTAXONOMY OF THE CHARACEAE: KARYOTYPE ANALYSIS OF NITELLA OPACA AND NITELLA FLEXILIS |
title_fullStr |
CYTOTAXONOMY OF THE CHARACEAE: KARYOTYPE ANALYSIS OF NITELLA OPACA AND NITELLA FLEXILIS |
title_full_unstemmed |
CYTOTAXONOMY OF THE CHARACEAE: KARYOTYPE ANALYSIS OF NITELLA OPACA AND NITELLA FLEXILIS |
title_sort |
cytotaxonomy of the characeae: karyotype analysis of nitella opaca and nitella flexilis |
publisher |
Wiley |
publishDate |
1965 |
url |
http://dx.doi.org/10.1002/j.1537-2197.1965.tb07272.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fj.1537-2197.1965.tb07272.x https://onlinelibrary.wiley.com/doi/pdf/10.1002/j.1537-2197.1965.tb07272.x http://api.wiley.com/onlinelibrary/chorus/v1/articles/10.1002%2Fj.1537-2197.1965.tb07272.x |
genre |
Nitella flexilis |
genre_facet |
Nitella flexilis |
op_source |
American Journal of Botany volume 52, issue 9, page 962-970 ISSN 0002-9122 1537-2197 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/j.1537-2197.1965.tb07272.x |
container_title |
American Journal of Botany |
container_volume |
52 |
container_issue |
9 |
container_start_page |
962 |
op_container_end_page |
970 |
_version_ |
1800756713531375616 |