{"date_published":"2023-08-15T00:00:00Z","publication_status":"published","department":[{"_id":"GradSch"},{"_id":"NiBa"},{"_id":"BeVi"}],"abstract":[{"lang":"eng","text":"Females and males across species are subject to divergent selective pressures arising\r\nfrom di↵erent reproductive interests and ecological niches. This often translates into a\r\nintricate array of sex-specific natural and sexual selection on traits that have a shared\r\ngenetic basis between both sexes, causing a genetic sexual conflict. The resolution of\r\nthis conflict mostly relies on the evolution of sex-specific expression of the shared genes,\r\nleading to phenotypic sexual dimorphism. Such sex-specific gene expression is thought\r\nto evolve via modifications of the genetic networks ultimately linked to sex-determining\r\ntranscription factors. Although much empirical and theoretical evidence supports this\r\nstandard picture of the molecular basis of sexual conflict resolution, there still are a\r\nfew open questions regarding the complex array of selective forces driving phenotypic\r\ndi↵erentiation between the sexes, as well as the molecular mechanisms underlying sexspecific adaptation. I address some of these open questions in my PhD thesis.\r\nFirst, how do patterns of phenotypic sexual dimorphism vary within populations,\r\nas a response to the temporal and spatial changes in sex-specific selective forces? To\r\ntackle this question, I analyze the patterns of sex-specific phenotypic variation along\r\nthree life stages and across populations spanning the whole geographical range of Rumex\r\nhastatulus, a wind-pollinated angiosperm, in the first Chapter of the thesis.\r\nSecond, how do gene expression patterns lead to phenotypic dimorphism, and what\r\nare the molecular mechanisms underlying the observed transcriptomic variation? I\r\naddress this question by examining the sex- and tissue-specific expression variation in\r\nnewly-generated datasets of sex-specific expression in heads and gonads of Drosophila\r\nmelanogaster. I additionally used two complementary approaches for the study of the\r\ngenetic basis of sex di↵erences in gene expression in the second and third Chapters of\r\nthe thesis.\r\nThird, how does intersex correlation, thought to be one of the main aspects constraining the ability for the two sexes to decouple, interact with the evolution of sexual\r\ndimorphism? I develop models of sex-specific stabilizing selection, mutation and drift\r\nto formalize common intuition regarding the patterns of covariation between intersex\r\ncorrelation and sexual dimorphism in the fourth Chapter of the thesis.\r\nAlltogether, the work described in this PhD thesis provides useful insights into the\r\nlinks between genetic, transcriptomic and phenotypic layers of sex-specific variation,\r\nand contributes to our general understanding of the dynamics of sexual dimorphism\r\nevolution."}],"type":"dissertation","file":[{"file_id":"14075","file_size":10891454,"date_created":"2023-08-16T18:15:17Z","date_updated":"2023-08-17T06:55:24Z","content_type":"application/zip","file_name":"Thesis_latex_forpdfa.zip","access_level":"closed","creator":"gpuixeus","relation":"source_file","checksum":"4e44e169f2724ee8c9324cd60bcc2b71"},{"date_updated":"2023-08-18T10:47:55Z","date_created":"2023-08-18T10:47:55Z","file_size":19856686,"success":1,"file_id":"14079","checksum":"e10b04cd8f3fecc0d9ef6e6868b6e1e8","relation":"main_file","creator":"gpuixeus","access_level":"open_access","file_name":"PhDThesis_PuixeuG.pdf","content_type":"application/pdf"}],"day":"15","degree_awarded":"PhD","supervisor":[{"orcid":"0000-0002-4579-8306","id":"49E1C5C6-F248-11E8-B48F-1D18A9856A87","full_name":"Vicoso, Beatriz","last_name":"Vicoso","first_name":"Beatriz"},{"orcid":"0000-0002-8548-5240","full_name":"Barton, Nicholas H","id":"4880FE40-F248-11E8-B48F-1D18A9856A87","first_name":"Nicholas H","last_name":"Barton"}],"month":"08","article_processing_charge":"No","date_updated":"2023-12-13T12:15:36Z","tmp":{"image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"title":"The molecular basis of sexual dimorphism: Experimental and theoretical characterization of phenotypic, transcriptomic and genetic patterns of sex-specific adaptation","status":"public","related_material":{"record":[{"status":"public","relation":"research_data","id":"9803"},{"status":"public","relation":"research_data","id":"12933"},{"relation":"part_of_dissertation","id":"6831","status":"public"},{"relation":"part_of_dissertation","id":"14077","status":"public"}]},"alternative_title":["ISTA Thesis"],"oa_version":"Published Version","oa":1,"date_created":"2023-08-15T10:20:40Z","user_id":"8b945eb4-e2f2-11eb-945a-df72226e66a9","publisher":"Institute of Science and Technology Austria","citation":{"mla":"Puixeu Sala, Gemma. <i>The Molecular Basis of Sexual Dimorphism: Experimental and Theoretical Characterization of Phenotypic, Transcriptomic and Genetic Patterns of Sex-Specific Adaptation</i>. Institute of Science and Technology Austria, 2023, doi:<a href=\"https://doi.org/10.15479/at:ista:14058\">10.15479/at:ista:14058</a>.","ieee":"G. Puixeu Sala, “The molecular basis of sexual dimorphism: Experimental and theoretical characterization of phenotypic, transcriptomic and genetic patterns of sex-specific adaptation,” Institute of Science and Technology Austria, 2023.","apa":"Puixeu Sala, G. (2023). <i>The molecular basis of sexual dimorphism: Experimental and theoretical characterization of phenotypic, transcriptomic and genetic patterns of sex-specific adaptation</i>. Institute of Science and Technology Austria. <a href=\"https://doi.org/10.15479/at:ista:14058\">https://doi.org/10.15479/at:ista:14058</a>","ista":"Puixeu Sala G. 2023. The molecular basis of sexual dimorphism: Experimental and theoretical characterization of phenotypic, transcriptomic and genetic patterns of sex-specific adaptation. Institute of Science and Technology Austria.","chicago":"Puixeu Sala, Gemma. “The Molecular Basis of Sexual Dimorphism: Experimental and Theoretical Characterization of Phenotypic, Transcriptomic and Genetic Patterns of Sex-Specific Adaptation.” Institute of Science and Technology Austria, 2023. <a href=\"https://doi.org/10.15479/at:ista:14058\">https://doi.org/10.15479/at:ista:14058</a>.","ama":"Puixeu Sala G. The molecular basis of sexual dimorphism: Experimental and theoretical characterization of phenotypic, transcriptomic and genetic patterns of sex-specific adaptation. 2023. doi:<a href=\"https://doi.org/10.15479/at:ista:14058\">10.15479/at:ista:14058</a>","short":"G. Puixeu Sala, The Molecular Basis of Sexual Dimorphism: Experimental and Theoretical Characterization of Phenotypic, Transcriptomic and Genetic Patterns of Sex-Specific Adaptation, Institute of Science and Technology Austria, 2023."},"ec_funded":1,"_id":"14058","language":[{"iso":"eng"}],"author":[{"full_name":"Puixeu Sala, Gemma","id":"33AB266C-F248-11E8-B48F-1D18A9856A87","last_name":"Puixeu Sala","first_name":"Gemma","orcid":"0000-0001-8330-1754"}],"has_accepted_license":"1","doi":"10.15479/at:ista:14058","page":"230","publication_identifier":{"isbn":["978-3-99078-035-0"],"issn":["2663-337X"]},"file_date_updated":"2023-08-18T10:47:55Z","project":[{"call_identifier":"H2020","grant_number":"665385","name":"International IST Doctoral Program","_id":"2564DBCA-B435-11E9-9278-68D0E5697425"},{"name":"Sexual conflict: resolution, constraints and biomedical implications","_id":"9B9DFC9E-BA93-11EA-9121-9846C619BF3A","grant_number":"25817"}],"ddc":["576"],"year":"2023"}