{"669180":{"#nid":"669180","#data":{"type":"event","title":"School of Biological Sciences Fall 2023 Seminar Series presents Dr. William Ratcliff","body":[{"value":"\u003Cp\u003E\u003Cspan\u003E\u003Cspan\u003E\u003Cspan\u003E\u003Cstrong\u003EWilliam Ratcliff, PhD\u003C\/strong\u003E\u003Cbr \/\u003E\r\nSchool of Biological Sciences\u003Cbr \/\u003E\r\nGeorgia institute of Technology \u003C\/span\u003E\u003C\/span\u003E\u003C\/span\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Ca href=\u0022https:\/\/gatech.zoom.us\/j\/97155903722?pwd=R0kwcWNRaTU4eGlIeWtpcmo2dGVDUT09\u0022\u003E\u003Cspan\u003E\u003Cspan\u003E\u003Cspan\u003ELIVESTREAM\u003C\/span\u003E\u003C\/span\u003E\u003C\/span\u003E\u003C\/a\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cspan\u003E\u003Cspan\u003E\u003Cspan\u003E\u003Cspan\u003E\u003Cspan\u003EThe\u0026nbsp;origin of\u0026nbsp;multicellularity\u0026nbsp;was one\u0026nbsp;of\u0026nbsp;the most significant innovations in the history\u0026nbsp;of\u0026nbsp;life. Our understanding of the evolutionary processes underlying this transition remains limited, however, mainly because extant multicellular lineages are ancient and most transitional forms have been lost to extinction. We bridge this knowledge gap by evolving novel multicellularity in the lab, using the \u0027snowflake yeast\u0027 model system. In this talk, I\u0027ll focus on our ongoing Multicellular Long-Term Evolution Experiment (MuLTEE), in which we\u0027ve put snowflake yeast through ~5,000 generations of selection for larger size and faster growth. We will examine key steps in the evolution of multicellularity, namely how multicellular traits arise and become heritable, how simple multicellular bodies evolve to become radically stronger and tougher, and how cells divide labor through differentiation. Overall, our approach allows us to examine how simple groups of cells can evolve to become increasingly integrated and organismal, providing novel insight into this major evolutionary transition.\u0026nbsp;\u003C\/span\u003E\u003C\/span\u003E\u003C\/span\u003E\u003C\/span\u003E\u003C\/span\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u003Cspan\u003E\u003Cspan\u003E\u003Cspan\u003E\u003Cspan\u003E\u003Cspan\u003EHost: Dr Greg Gibson\u003C\/span\u003E\u003C\/span\u003E\u003C\/span\u003E\u003C\/span\u003E\u003C\/span\u003E\u003C\/p\u003E\r\n\r\n\u003Cp\u003E\u0026nbsp;\u003C\/p\u003E\r\n","summary":"","format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EN\/A\u003C\/p\u003E\r\n","format":"limited_html"}],"field_summary_sentence":[{"value":"Exploring the origin of multicellularity in real time: what we\u0027ve learned from 5,000 generations of laboratory evolution "}],"uid":"36506","created_gmt":"2023-08-25 17:32:04","changed_gmt":"2023-08-28 14:04:08","author":"rbailey74","boilerplate_text":"","field_publication":"","field_article_url":"","field_event_time":{"event_time_start":"2023-08-31T11:00:00-04:00","event_time_end":"2023-08-31T12:00:00-04:00","event_time_end_last":"2023-08-31T12:00:00-04:00","gmt_time_start":"2023-08-31 15:00:00","gmt_time_end":"2023-08-31 16:00:00","gmt_time_end_last":"2023-08-31 16:00:00","rrule":null,"timezone":"America\/New_York"},"location":"Roger A. and Helen B Krone Engineered Biosystems Building, 950 Atlantic Drive, Atlanta, GA  30032, Room 1005","extras":["free_food"],"hg_media":{"671490":{"id":"671490","type":"image","title":"William Ratcliff.jpg","body":null,"created":"1692993541","gmt_created":"2023-08-25 19:59:01","changed":"1692993541","gmt_changed":"2023-08-25 19:59:01","alt":"school of biological sciences ","file":{"fid":"254561","name":"William Ratcliff.jpg","image_path":"\/sites\/default\/files\/2023\/08\/25\/William%20Ratcliff_0.jpg","image_full_path":"http:\/\/hg.gatech.edu\/\/sites\/default\/files\/2023\/08\/25\/William%20Ratcliff_0.jpg","mime":"image\/jpeg","size":20848,"path_740":"http:\/\/hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/2023\/08\/25\/William%20Ratcliff_0.jpg?itok=iLh3AJaN"}}},"media_ids":["671490"],"groups":[{"id":"1275","name":"School of Biological Sciences"}],"categories":[],"keywords":[{"id":"188689","name":"Biological Sciences Seminar"}],"core_research_areas":[],"news_room_topics":[],"event_categories":[{"id":"1795","name":"Seminar\/Lecture\/Colloquium"}],"invited_audience":[{"id":"78761","name":"Faculty\/Staff"},{"id":"177814","name":"Postdoc"},{"id":"78771","name":"Public"},{"id":"174045","name":"Graduate students"},{"id":"78751","name":"Undergraduate students"}],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cp\u003EFor all questions and concerns please contact \u003Cspan\u003E\u003Cspan\u003Eus at \u003Ca href=\u0022mailto:administrative@biosci.gatech.edu\u0022\u003Eadministrative@biosci.gatech.edu\u003C\/a\u003E\u003C\/span\u003E\u003C\/span\u003E\u003C\/p\u003E\r\n","format":"limited_html"}],"email":[],"slides":[],"orientation":[],"userdata":""}}}