Genetic variation in populations of the arctic perennial Pedicularis dasyantha (Scrophulariaceae), on Svalbard, Norway
Isozyme variability was examined in 13 geographically isolated populations of the endemic arctic hairy lousewort ( Pedicularis dasyantha ) in the Svalbard Archipelago, 80° N latitude, Norway. Of the 23 enzyme systems screened on five buffer systems 18 were interpretable. Of the 31 reliable loci, onl...
Published in: | American Journal of Botany |
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Online Access: | http://dx.doi.org/10.1002/j.1537-2197.1996.tb13931.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fj.1537-2197.1996.tb13931.x http://onlinelibrary.wiley.com/wol1/doi/10.1002/j.1537-2197.1996.tb13931.x/fullpdf |
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crwiley:10.1002/j.1537-2197.1996.tb13931.x 2024-06-02T08:00:13+00:00 Genetic variation in populations of the arctic perennial Pedicularis dasyantha (Scrophulariaceae), on Svalbard, Norway Odasz, Ann Marie Savolainen, Outi Norwegian Scientific Research Council Norwegian Polar Institute The Marshall Fund of the Norwegian-American Association Polar Internordic Research Fund 1996 http://dx.doi.org/10.1002/j.1537-2197.1996.tb13931.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fj.1537-2197.1996.tb13931.x http://onlinelibrary.wiley.com/wol1/doi/10.1002/j.1537-2197.1996.tb13931.x/fullpdf en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor American Journal of Botany volume 83, issue 11, page 1379-1385 ISSN 0002-9122 1537-2197 journal-article 1996 crwiley https://doi.org/10.1002/j.1537-2197.1996.tb13931.x 2024-05-03T11:53:29Z Isozyme variability was examined in 13 geographically isolated populations of the endemic arctic hairy lousewort ( Pedicularis dasyantha ) in the Svalbard Archipelago, 80° N latitude, Norway. Of the 23 enzyme systems screened on five buffer systems 18 were interpretable. Of the 31 reliable loci, only 6‐phosphogluconate dehydrogenase ( 6‐Pgd ), was polymorphic. However, no heterozygotes were detected. Frequencies for allele 1 among the populations varied from 1.00 in the north to 0.00 in the south and 0.53 in the central “overlap” region. At the species level the mean number of alleles per locus ( A ) was 1.03. Percentage of polymorphic loci ( P ) was 3%. Expected heterozygosity ( H e ) was 0.016. At the population level the mean number of alleles per locus was 1.01, and 1.1% of the loci were polymorphic. H e was 0.004. These values are low compared to endemic, widespread, selling, and outcrossed species. Flower color morphs were distinct. They varied within and among the 13 populations. The frequency of color morphs coincided with allele frequencies of 6‐PGD: allele 1 was found in dark purple morphs, and allele 2 was found in light morphs. This species shows more isozyme genetic variability than the five other species reported in the genus but generally less variation than other species with limited regional distributions. Low‐level genetic variation in this diploid species may be a result of colonization events coupled with genetic drift, founder effects, and strong natural selection. Additional factors include the self‐compatible reproductive system and the long‐lived perennial habit. Article in Journal/Newspaper arctic hairy lousewort Arctic Hairy lousewort Pedicularis dasyantha Svalbard Wiley Online Library Arctic Svalbard Svalbard Archipelago Norway American Journal of Botany 83 11 1379 1385 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Isozyme variability was examined in 13 geographically isolated populations of the endemic arctic hairy lousewort ( Pedicularis dasyantha ) in the Svalbard Archipelago, 80° N latitude, Norway. Of the 23 enzyme systems screened on five buffer systems 18 were interpretable. Of the 31 reliable loci, only 6‐phosphogluconate dehydrogenase ( 6‐Pgd ), was polymorphic. However, no heterozygotes were detected. Frequencies for allele 1 among the populations varied from 1.00 in the north to 0.00 in the south and 0.53 in the central “overlap” region. At the species level the mean number of alleles per locus ( A ) was 1.03. Percentage of polymorphic loci ( P ) was 3%. Expected heterozygosity ( H e ) was 0.016. At the population level the mean number of alleles per locus was 1.01, and 1.1% of the loci were polymorphic. H e was 0.004. These values are low compared to endemic, widespread, selling, and outcrossed species. Flower color morphs were distinct. They varied within and among the 13 populations. The frequency of color morphs coincided with allele frequencies of 6‐PGD: allele 1 was found in dark purple morphs, and allele 2 was found in light morphs. This species shows more isozyme genetic variability than the five other species reported in the genus but generally less variation than other species with limited regional distributions. Low‐level genetic variation in this diploid species may be a result of colonization events coupled with genetic drift, founder effects, and strong natural selection. Additional factors include the self‐compatible reproductive system and the long‐lived perennial habit. |
author2 |
Norwegian Scientific Research Council Norwegian Polar Institute The Marshall Fund of the Norwegian-American Association Polar Internordic Research Fund |
format |
Article in Journal/Newspaper |
author |
Odasz, Ann Marie Savolainen, Outi |
spellingShingle |
Odasz, Ann Marie Savolainen, Outi Genetic variation in populations of the arctic perennial Pedicularis dasyantha (Scrophulariaceae), on Svalbard, Norway |
author_facet |
Odasz, Ann Marie Savolainen, Outi |
author_sort |
Odasz, Ann Marie |
title |
Genetic variation in populations of the arctic perennial Pedicularis dasyantha (Scrophulariaceae), on Svalbard, Norway |
title_short |
Genetic variation in populations of the arctic perennial Pedicularis dasyantha (Scrophulariaceae), on Svalbard, Norway |
title_full |
Genetic variation in populations of the arctic perennial Pedicularis dasyantha (Scrophulariaceae), on Svalbard, Norway |
title_fullStr |
Genetic variation in populations of the arctic perennial Pedicularis dasyantha (Scrophulariaceae), on Svalbard, Norway |
title_full_unstemmed |
Genetic variation in populations of the arctic perennial Pedicularis dasyantha (Scrophulariaceae), on Svalbard, Norway |
title_sort |
genetic variation in populations of the arctic perennial pedicularis dasyantha (scrophulariaceae), on svalbard, norway |
publisher |
Wiley |
publishDate |
1996 |
url |
http://dx.doi.org/10.1002/j.1537-2197.1996.tb13931.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fj.1537-2197.1996.tb13931.x http://onlinelibrary.wiley.com/wol1/doi/10.1002/j.1537-2197.1996.tb13931.x/fullpdf |
geographic |
Arctic Svalbard Svalbard Archipelago Norway |
geographic_facet |
Arctic Svalbard Svalbard Archipelago Norway |
genre |
arctic hairy lousewort Arctic Hairy lousewort Pedicularis dasyantha Svalbard |
genre_facet |
arctic hairy lousewort Arctic Hairy lousewort Pedicularis dasyantha Svalbard |
op_source |
American Journal of Botany volume 83, issue 11, page 1379-1385 ISSN 0002-9122 1537-2197 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/j.1537-2197.1996.tb13931.x |
container_title |
American Journal of Botany |
container_volume |
83 |
container_issue |
11 |
container_start_page |
1379 |
op_container_end_page |
1385 |
_version_ |
1800744203002576896 |