{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/77586"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/77586","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Genetic Variation Within and Between Populations of Drosophila Melanogaster","abstract":"The population of Drosophila melanogaster in an experimental apple orchard was monitored in 1976 and 1977. In 1977 two additional populations of D. melanogaster were also examined.","abstract_html":"The population of Drosophila melanogaster in an experimental apple orchard was monitored in 1976 and 1977. In 1977 two additional populations of D. melanogaster were also examined.","abstract_has_math":false,"creators":["Gibson, Patricia Ann Kacena"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Genetics and Development","degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015-05-14T15:09:25Z","date_published":"2015-05-14T15:09:25Z","updated_at":"2026-07-22T22:26:11Z","subjects":["Biology, Genetics"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(UMI)AAI8017943"],"render_values":[{"text":"(UMI)AAI8017943","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/77586","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Gibson, Patricia Ann Kacena"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2015-05-14T15:09:25Z","10000-01-01","1980"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Genetics and Development"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Biology, Genetics"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/77586","(UMI)AAI8017943"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The population of Drosophila melanogaster in an experimental apple orchard was monitored in 1976 and 1977. In 1977 two additional populations of D. melanogaster were also examined.","Concurrently with population sampling, environmental data (including several temperature, humidity and pressure parameters for both the day and week preceding capture as well as apple variety, density and volume at the sites of capture) were measured. Additionally, at every site the degree of decomposition (as an estimate of the amount of fermentation) of each fruit was subjectively determined.","These environmental features along with the date of capture, relative abundance, proportion of males and proportion of D. melanogaster (in relation to its sibling species, D. simulans) captured were examined for possible correlations with genetic data obtained by starch gel electrophoresis for twelve polymorphic loci (Adh, (alpha)gpdh, Idh, Pgm, Mdh-1, Mdh-2, Est-6, Est-C, Aldox, Ap, Acph and 6pgd).","Although the same alleles were the most common in each population, differences between populations were found in allelic and genotypic frequencies at some loci. The smallest population had the largest fluctuations in allele frequency. Although no correlations were found between individual heterozygosity and population size, a few genetic correlations with relative abundance were found.","The proportion of D. melanogaster dropped dramatically between the two years and was correlated with several temperature parameters in 1977 as well as with many allelic and genotype frequencies at several loci during both years.","Genetic associations with both collection date and several temperature parameters of the day and week preceding capture were numerous. Some of these significant correlations were consistent among the different populations. Some correlations also occurred between relative humidity parameters and various genetic factors.","Several loci exhibited associations with the various apple parameters, indicating that the larval food source may influence genetics.","In both years, apparent subpopulations were associated with apple variety. Experimental evidence supported the hypothesis that differential selection due to apple variety affected immature forms of D. melanogaster. The genetic similarities between subpopulations found at trees of a given variety were enhanced by migration. The genetic differences and the distances between subpopulations were not correlated.","Made available in DSpace on 2015-05-14T15:09:25Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 8017943.PDF: 4942656 bytes, checksum: b26e1b18c10e7aec122e1b2084fb2068 (MD5) Previous issue date: 1980","Embargo set by: Seth Robbins for item 78796 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","U of I Only","166 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1980."]},{"key":"dc:title","label":"Title","values":["Genetic Variation Within and Between Populations of Drosophila Melanogaster"]}]}],"canonical_facts":{"dc:creator":["Gibson, Patricia Ann Kacena"],"dc:date":["2015-05-14T15:09:25Z","10000-01-01","1980"],"dc:description":["The population of Drosophila melanogaster in an experimental apple orchard was monitored in 1976 and 1977. In 1977 two additional populations of D. melanogaster were also examined.","Concurrently with population sampling, environmental data (including several temperature, humidity and pressure parameters for both the day and week preceding capture as well as apple variety, density and volume at the sites of capture) were measured. Additionally, at every site the degree of decomposition (as an estimate of the amount of fermentation) of each fruit was subjectively determined.","These environmental features along with the date of capture, relative abundance, proportion of males and proportion of D. melanogaster (in relation to its sibling species, D. simulans) captured were examined for possible correlations with genetic data obtained by starch gel electrophoresis for twelve polymorphic loci (Adh, (alpha)gpdh, Idh, Pgm, Mdh-1, Mdh-2, Est-6, Est-C, Aldox, Ap, Acph and 6pgd).","Although the same alleles were the most common in each population, differences between populations were found in allelic and genotypic frequencies at some loci. The smallest population had the largest fluctuations in allele frequency. Although no correlations were found between individual heterozygosity and population size, a few genetic correlations with relative abundance were found.","The proportion of D. melanogaster dropped dramatically between the two years and was correlated with several temperature parameters in 1977 as well as with many allelic and genotype frequencies at several loci during both years.","Genetic associations with both collection date and several temperature parameters of the day and week preceding capture were numerous. Some of these significant correlations were consistent among the different populations. Some correlations also occurred between relative humidity parameters and various genetic factors.","Several loci exhibited associations with the various apple parameters, indicating that the larval food source may influence genetics.","In both years, apparent subpopulations were associated with apple variety. Experimental evidence supported the hypothesis that differential selection due to apple variety affected immature forms of D. melanogaster. The genetic similarities between subpopulations found at trees of a given variety were enhanced by migration. The genetic differences and the distances between subpopulations were not correlated.","Made available in DSpace on 2015-05-14T15:09:25Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 8017943.PDF: 4942656 bytes, checksum: b26e1b18c10e7aec122e1b2084fb2068 (MD5) Previous issue date: 1980","Embargo set by: Seth Robbins for item 78796 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","U of I Only","166 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1980."],"dc:identifier":["http://hdl.handle.net/2142/77586","(UMI)AAI8017943"],"dc:language":["eng"],"dc:subject":["Biology, Genetics"],"dc:title":["Genetic Variation Within and Between Populations of Drosophila Melanogaster"],"dc:type":["text"],"thesis:degree_discipline":["Genetics and Development"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:26:11Z"}