Polyploidy in Bryum collected from the Syowa Station area, Antarctica

Polyploidy in Bryum collected from the Syowa Station area, Antarctica

Bryum pseudotriquetrum (HEDW.) GAERTN., MEYER et SCHERB. and B. amblyodon C. MUELL. collected from the Syowa Station area, Antarctica are karyologically studied with particular regard to the polyploidy. Almost all samples of these two species showed to have n=20. This may be the diploid level derive...

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Main Authors: Hiroshi Kanda, Hiroshi Okada
Format: Article
Language:English
Published: National Institute of Polar Research 1990-03-01
Series:Antarctic Record
Online Access:https://doi.org/10.15094/00008658
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spelling doaj-5dc4b5eb6f564749a84cbda11c7295d62020-11-25T01:02:17ZengNational Institute of Polar ResearchAntarctic Record0085-72892432-079X1990-03-013411710.15094/00008658Polyploidy in Bryum collected from the Syowa Station area, AntarcticaHiroshi Kanda0Hiroshi Okada1National Institute of Polar ResearchDepartment of Biology, College of General Education, Osaka UniversityBryum pseudotriquetrum (HEDW.) GAERTN., MEYER et SCHERB. and B. amblyodon C. MUELL. collected from the Syowa Station area, Antarctica are karyologically studied with particular regard to the polyploidy. Almost all samples of these two species showed to have n=20. This may be the diploid level derived from x=10. In the present study, however, the triploid level (n=30) was confirmed in one sample of B. pseudotriquetrum, and the morphological features of chromosomes, leaves and cells are compared with those of n=20. Such polyploidy was hitherto unknown in this species. It is possible to say that the polyploidy increases in incidence with latitude in the polar areas.https://doi.org/10.15094/00008658
collection DOAJ
language English
format Article
sources DOAJ
author Hiroshi Kanda
Hiroshi Okada
spellingShingle Hiroshi Kanda
Hiroshi Okada
Polyploidy in Bryum collected from the Syowa Station area, Antarctica
Antarctic Record
author_facet Hiroshi Kanda
Hiroshi Okada
author_sort Hiroshi Kanda
title Polyploidy in Bryum collected from the Syowa Station area, Antarctica
title_short Polyploidy in Bryum collected from the Syowa Station area, Antarctica
title_full Polyploidy in Bryum collected from the Syowa Station area, Antarctica
title_fullStr Polyploidy in Bryum collected from the Syowa Station area, Antarctica
title_full_unstemmed Polyploidy in Bryum collected from the Syowa Station area, Antarctica
title_sort polyploidy in bryum collected from the syowa station area, antarctica
publisher National Institute of Polar Research
series Antarctic Record
issn 0085-7289
2432-079X
publishDate 1990-03-01
description Bryum pseudotriquetrum (HEDW.) GAERTN., MEYER et SCHERB. and B. amblyodon C. MUELL. collected from the Syowa Station area, Antarctica are karyologically studied with particular regard to the polyploidy. Almost all samples of these two species showed to have n=20. This may be the diploid level derived from x=10. In the present study, however, the triploid level (n=30) was confirmed in one sample of B. pseudotriquetrum, and the morphological features of chromosomes, leaves and cells are compared with those of n=20. Such polyploidy was hitherto unknown in this species. It is possible to say that the polyploidy increases in incidence with latitude in the polar areas.
url https://doi.org/10.15094/00008658
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AT hiroshiokada polyploidyinbryumcollectedfromthesyowastationareaantarctica
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