POPULATION GENETICS OF THE SPRUCE BUDWORM, CHORISTONEURA FUMIFERANA (CLEM.) FREEMAN (LEPIDOPTERA: TORTRICIDAE), IN RELATION TO GEOGRAPHICAL AND POPULATION DENSITY DIFFERENCES
Abstract Collections (68) of spruce budworm from 33 locations from Newfoundland to Alaska were analysed for isozyme frequencies using horizontal starch gels. Collections represented pre-, early-, mid-, late-, and post-outbreak stages of several populations in balsam fir, white spruce, and mixed host...
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1996
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Online Access: | http://dx.doi.org/10.4039/ent128219-2 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0008347X00015881 |
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crcambridgeupr:10.4039/ent128219-2 2023-05-15T17:22:25+02:00 POPULATION GENETICS OF THE SPRUCE BUDWORM, CHORISTONEURA FUMIFERANA (CLEM.) FREEMAN (LEPIDOPTERA: TORTRICIDAE), IN RELATION TO GEOGRAPHICAL AND POPULATION DENSITY DIFFERENCES Harvey, G.T. 1996 http://dx.doi.org/10.4039/ent128219-2 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0008347X00015881 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms The Canadian Entomologist volume 128, issue 2, page 219-243 ISSN 0008-347X 1918-3240 Insect Science Molecular Biology Physiology Ecology, Evolution, Behavior and Systematics Structural Biology journal-article 1996 crcambridgeupr https://doi.org/10.4039/ent128219-2 2022-08-23T16:58:27Z Abstract Collections (68) of spruce budworm from 33 locations from Newfoundland to Alaska were analysed for isozyme frequencies using horizontal starch gels. Collections represented pre-, early-, mid-, late-, and post-outbreak stages of several populations in balsam fir, white spruce, and mixed host forests, as well as successive annual collections at several locations. Isozymes were measured at 11 loci in mature larvae and at six loci in pheromone-trapped males; frequencies were essentially the same in both stages, and from all host species. Three loci (IDH-2, LDH-1, and AAT-1) were found to be sex-linked, with no heterozygotes in females. Mean percentage heterozygosity ranged from 13.2 to 23.1; at individual locations it tended to decrease over successive years of outbreak and over successive collections in the same year. Contingency chi-square analysis indicated small differences related to location and outbreak history but all populations were generally homogeneous over the entire range. Nevertheless, one allozyme of AAT-1 exhibited a significant cline in frequency from the southeast to the northwest. Gene flow across the entire range appeared to be appreciable. Article in Journal/Newspaper Newfoundland Alaska Cambridge University Press (via Crossref) The Canadian Entomologist 128 2 219 243 |
institution |
Open Polar |
collection |
Cambridge University Press (via Crossref) |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Insect Science Molecular Biology Physiology Ecology, Evolution, Behavior and Systematics Structural Biology |
spellingShingle |
Insect Science Molecular Biology Physiology Ecology, Evolution, Behavior and Systematics Structural Biology Harvey, G.T. POPULATION GENETICS OF THE SPRUCE BUDWORM, CHORISTONEURA FUMIFERANA (CLEM.) FREEMAN (LEPIDOPTERA: TORTRICIDAE), IN RELATION TO GEOGRAPHICAL AND POPULATION DENSITY DIFFERENCES |
topic_facet |
Insect Science Molecular Biology Physiology Ecology, Evolution, Behavior and Systematics Structural Biology |
description |
Abstract Collections (68) of spruce budworm from 33 locations from Newfoundland to Alaska were analysed for isozyme frequencies using horizontal starch gels. Collections represented pre-, early-, mid-, late-, and post-outbreak stages of several populations in balsam fir, white spruce, and mixed host forests, as well as successive annual collections at several locations. Isozymes were measured at 11 loci in mature larvae and at six loci in pheromone-trapped males; frequencies were essentially the same in both stages, and from all host species. Three loci (IDH-2, LDH-1, and AAT-1) were found to be sex-linked, with no heterozygotes in females. Mean percentage heterozygosity ranged from 13.2 to 23.1; at individual locations it tended to decrease over successive years of outbreak and over successive collections in the same year. Contingency chi-square analysis indicated small differences related to location and outbreak history but all populations were generally homogeneous over the entire range. Nevertheless, one allozyme of AAT-1 exhibited a significant cline in frequency from the southeast to the northwest. Gene flow across the entire range appeared to be appreciable. |
format |
Article in Journal/Newspaper |
author |
Harvey, G.T. |
author_facet |
Harvey, G.T. |
author_sort |
Harvey, G.T. |
title |
POPULATION GENETICS OF THE SPRUCE BUDWORM, CHORISTONEURA FUMIFERANA (CLEM.) FREEMAN (LEPIDOPTERA: TORTRICIDAE), IN RELATION TO GEOGRAPHICAL AND POPULATION DENSITY DIFFERENCES |
title_short |
POPULATION GENETICS OF THE SPRUCE BUDWORM, CHORISTONEURA FUMIFERANA (CLEM.) FREEMAN (LEPIDOPTERA: TORTRICIDAE), IN RELATION TO GEOGRAPHICAL AND POPULATION DENSITY DIFFERENCES |
title_full |
POPULATION GENETICS OF THE SPRUCE BUDWORM, CHORISTONEURA FUMIFERANA (CLEM.) FREEMAN (LEPIDOPTERA: TORTRICIDAE), IN RELATION TO GEOGRAPHICAL AND POPULATION DENSITY DIFFERENCES |
title_fullStr |
POPULATION GENETICS OF THE SPRUCE BUDWORM, CHORISTONEURA FUMIFERANA (CLEM.) FREEMAN (LEPIDOPTERA: TORTRICIDAE), IN RELATION TO GEOGRAPHICAL AND POPULATION DENSITY DIFFERENCES |
title_full_unstemmed |
POPULATION GENETICS OF THE SPRUCE BUDWORM, CHORISTONEURA FUMIFERANA (CLEM.) FREEMAN (LEPIDOPTERA: TORTRICIDAE), IN RELATION TO GEOGRAPHICAL AND POPULATION DENSITY DIFFERENCES |
title_sort |
population genetics of the spruce budworm, choristoneura fumiferana (clem.) freeman (lepidoptera: tortricidae), in relation to geographical and population density differences |
publisher |
Cambridge University Press (CUP) |
publishDate |
1996 |
url |
http://dx.doi.org/10.4039/ent128219-2 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0008347X00015881 |
genre |
Newfoundland Alaska |
genre_facet |
Newfoundland Alaska |
op_source |
The Canadian Entomologist volume 128, issue 2, page 219-243 ISSN 0008-347X 1918-3240 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.4039/ent128219-2 |
container_title |
The Canadian Entomologist |
container_volume |
128 |
container_issue |
2 |
container_start_page |
219 |
op_container_end_page |
243 |
_version_ |
1766109072728260608 |