{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/120157"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/120157","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Cophylogenetics of the Brueelia-complex (Phthiraptera: ischnocera) with avian hosts and bacterial endosymbionts","abstract":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-09-01 without embargo terms","abstract_html":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-09-01 without embargo terms","abstract_has_math":false,"creators":["D'Alessio, Lorenzo Mario"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Ecol, Evol, Conservation Biol","degree_department":null,"school":null,"contributors":["Johnson, Kevin P","Dietrich, Christopher","Hauber, Mark E"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2023,"date_issued":"2023-05","date_published":"2023-05","updated_at":"2026-07-22T22:24:56Z","subjects":["Brueelia","Parasitism","Lice","Endosymbiont","Phthiraptera","Ischnocera"],"languages":["en","eng"],"rights":["Copyright 2023 Lorenzo D'Alessio"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/2142/120157","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Johnson, Kevin P","Dietrich, Christopher","Hauber, Mark E"]},{"key":"dc:creator","label":"Author","values":["D'Alessio, Lorenzo Mario"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2023-05","2023-05-02"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Ecol, Evol, Conservation Biol"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"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":["Brueelia","Parasitism","Lice","Endosymbiont","Phthiraptera","Ischnocera"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2023 Lorenzo D'Alessio"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://hdl.handle.net/2142/120157"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-09-01 without embargo terms","The student, Lorenzo D'Alessio, accepted the attached license on 2023-05-01 at 20:48.","The student, Lorenzo D'Alessio, submitted this Thesis for approval on 2023-05-01 at 20:55.","This Thesis was approved for publication on 2023-05-02 at 15:45.","DSpace SAF Submission Ingestion Package generated from Vireo submission #19289 on 2023-09-01 at 16:56:06","Parasitism is an extremely common and widespread life-strategy, thus understanding the evolution of parasites with hosts remains an integral topic in evolutionary biology. Feather lice (Phthiraptera: Ischnocera) are a group of permanent ectoparasitic insects that spend their entire life cycle on their host, only being mobile when transmitting between individual hosts such as parents and offspring. The Brueelia-complex is an incredibly speciose group of feather lice found mostly on passerine birds across the world. There are already over 400 species in this group that have been described, with many more left to be discovered or synonymized. Noted for its strong host-specificity, the Brueelia-complex serves as a choice model to study coevolution and co-diversification. To study these processes a phylogenetic framework is needed. To achieve this, I first analyzed over 1000 gene sequences using concatenated and coalescent methods to construct well-supported phylogenies for genera within the Brueelia-complex that help resolve disputed generic relationships. I then performed cophylogenetic analyses with avian hosts that revealed distinct patterns of host-switching of lice a.) within suboscine birds, and b.) in and out of passerine hosts. A biogeographical analysis suggests a New World origin of the Brueelia-complex and subsequent diversification into other continents. Lastly, phylogenetic analyses of bacterial endosymbionts provide the first insight into the relationships among Sodalis symbionts within the Brueelia-complex. Together, my results provide the most current assessment of the relationships among the many genera within the Brueelia-complex and insight into their coevolutionary history with avian hosts and symbiotic bacteria."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Cophylogenetics of the Brueelia-complex (Phthiraptera: ischnocera) with avian hosts and bacterial endosymbionts"]}]}],"canonical_facts":{"dc:contributor":["Johnson, Kevin P","Dietrich, Christopher","Hauber, Mark E"],"dc:creator":["D'Alessio, Lorenzo Mario"],"dc:date":["2023-05","2023-05-02"],"dc:description":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-09-01 without embargo terms","The student, Lorenzo D'Alessio, accepted the attached license on 2023-05-01 at 20:48.","The student, Lorenzo D'Alessio, submitted this Thesis for approval on 2023-05-01 at 20:55.","This Thesis was approved for publication on 2023-05-02 at 15:45.","DSpace SAF Submission Ingestion Package generated from Vireo submission #19289 on 2023-09-01 at 16:56:06","Parasitism is an extremely common and widespread life-strategy, thus understanding the evolution of parasites with hosts remains an integral topic in evolutionary biology. Feather lice (Phthiraptera: Ischnocera) are a group of permanent ectoparasitic insects that spend their entire life cycle on their host, only being mobile when transmitting between individual hosts such as parents and offspring. The Brueelia-complex is an incredibly speciose group of feather lice found mostly on passerine birds across the world. There are already over 400 species in this group that have been described, with many more left to be discovered or synonymized. Noted for its strong host-specificity, the Brueelia-complex serves as a choice model to study coevolution and co-diversification. To study these processes a phylogenetic framework is needed. To achieve this, I first analyzed over 1000 gene sequences using concatenated and coalescent methods to construct well-supported phylogenies for genera within the Brueelia-complex that help resolve disputed generic relationships. I then performed cophylogenetic analyses with avian hosts that revealed distinct patterns of host-switching of lice a.) within suboscine birds, and b.) in and out of passerine hosts. A biogeographical analysis suggests a New World origin of the Brueelia-complex and subsequent diversification into other continents. Lastly, phylogenetic analyses of bacterial endosymbionts provide the first insight into the relationships among Sodalis symbionts within the Brueelia-complex. Together, my results provide the most current assessment of the relationships among the many genera within the Brueelia-complex and insight into their coevolutionary history with avian hosts and symbiotic bacteria."],"dc:format":["application/pdf"],"dc:identifier":["https://hdl.handle.net/2142/120157"],"dc:language":["en","eng"],"dc:rights":["Copyright 2023 Lorenzo D'Alessio"],"dc:subject":["Brueelia","Parasitism","Lice","Endosymbiont","Phthiraptera","Ischnocera"],"dc:title":["Cophylogenetics of the Brueelia-complex (Phthiraptera: ischnocera) with avian hosts and bacterial endosymbionts"],"dc:type":["text"],"thesis:degree_discipline":["Ecol, Evol, Conservation Biol"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:24:56Z"}