{"id":6666,"date":"2018-12-26T14:17:57","date_gmt":"2018-12-26T16:17:57","guid":{"rendered":"https:\/\/www.infraestruturameioambiente.sp.gov.br\/pgibt\/?page_id=6666"},"modified":"2018-12-26T14:32:25","modified_gmt":"2018-12-26T16:32:25","slug":"otavio-luis-marques-da-silva-dr","status":"publish","type":"page","link":"https:\/\/www.infraestruturameioambiente.sp.gov.br\/pgibt\/dissertacoesteses\/otavio-luis-marques-da-silva-dr\/","title":{"rendered":"Ot\u00e1vio Luis Marques da Silva DR"},"content":{"rendered":"<h2 style=\"text-align: center\"><a href=\"arquivos.ambiente.sp.gov.br\/pgibt\/2015\/02\/faixapos6.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-3777 size-full\" style=\"border: 0px\" src=\"https:\/\/smastr16.blob.core.windows.net\/pgibt\/2015\/02\/faixapos6.jpg\" alt=\"faixapos6\" width=\"950\" height=\"163\" srcset=\"https:\/\/smastr16.blob.core.windows.net\/pgibt\/2015\/02\/faixapos6.jpg 950w, https:\/\/smastr16.blob.core.windows.net\/pgibt\/2015\/02\/faixapos6-768x131.jpg 768w\" sizes=\"(max-width: 950px) 100vw, 950px\" \/><\/a><\/h2>\n<hr align=\"center\" noshade=\"noshade\" size=\"1\" width=\"100%\" \/>\n<h2 style=\"text-align: center\">Ot\u00e1vio Luis Marques da Silva<\/h2>\n<hr align=\"center\" noshade=\"noshade\" size=\"1\" width=\"100%\" \/>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-6660 size-medium aligncenter\" src=\"https:\/\/smastr16.blob.core.windows.net\/pgibt\/2018\/12\/foto-otavio-320x192.jpg\" alt=\"\" width=\"320\" height=\"192\" \/><\/p>\n<p style=\"text-align: center\"><span style=\"font-weight: 400\">Em 09 de maio de 2018, no anfiteatro do Instituto de Bot\u00e2nica (IBt-SP), Ot\u00e1vio Luis Marques da Silva, aluno de doutorado do Programa de P\u00f3s-gradua\u00e7\u00e3o em Biodiversidade Vegetal e Meio Ambiente e bolsista da Funda\u00e7\u00e3o de Amparo \u00e0 Pesquisa do Estado de S\u00e3o Paulo (FAPESP), defendeu a sua tese intitulada \u201cRevis\u00e3o taxon\u00f4mica, filogenia e biogeografia de <\/span><i><span style=\"font-weight: 400\">Astraea <\/span><\/i><span style=\"font-weight: 400\">Klotzsch (Euphorbiaceae)\u201d.<\/span><\/p>\n<p style=\"text-align: center\"><span style=\"font-weight: 400\">A banca examinadora foi presidida pela Dra. In\u00eas Cordeiro (Instituto de Bot\u00e2nica &#8211; IBt), tendo como membros as Dras. Maria Beatriz Rossi Caruzo (Universidade Federal de S\u00e3o Paulo \u2013 UNIFESP) e L\u00facia Rossi (IBt-SP), e os Drs. Renato de Mello-Silva (Universidade de S\u00e3o Paulo \u2013 USP) e Jefferson Prado (IBt-SP).<\/span><\/p>\n<p style=\"text-align: center\"><span style=\"font-weight: 400\">O trabalho se concentrou em <\/span><i><span style=\"font-weight: 400\">Astraea <\/span><\/i><span style=\"font-weight: 400\">Klotzsch, um g\u00eanero pertencente \u00e0 Crotoneae, tribo na qual est\u00e1 inserida <\/span><i><span style=\"font-weight: 400\">Croton<\/span><\/i><span style=\"font-weight: 400\">, um dos maiores g\u00eaneros de Euphorbiaceae. Como resultados, apresentamos rearranjos em <\/span><i><span style=\"font-weight: 400\">Astraea<\/span><\/i><span style=\"font-weight: 400\">, reconhecendo 13 esp\u00e9cies para o g\u00eanero. As an\u00e1lises filogen\u00e9ticas baseadas em tr\u00eas marcadores (<\/span><i><span style=\"font-weight: 400\">trnL-F, psbA-trnH <\/span><\/i><span style=\"font-weight: 400\">e ITS) suportam o reconhecimento de tr\u00eas grupos dentro de <\/span><i><span style=\"font-weight: 400\">Astraea<\/span><\/i><span style=\"font-weight: 400\">. Avaliamos tamb\u00e9m a hist\u00f3ria evolutiva de <\/span><i><span style=\"font-weight: 400\">Astraea <\/span><\/i><span style=\"font-weight: 400\">com base em uma filogenia datada, reconstru\u00e7\u00e3o de \u00e1reas de distribui\u00e7\u00e3o ancestrais e mapeamento de caracteres morfol\u00f3gicos. Ainda, expandimos nossas an\u00e1lises para a tribo Crotoneae para avaliar a hist\u00f3ria evolutiva de <\/span><i><span style=\"font-weight: 400\">Astraea <\/span><\/i><span style=\"font-weight: 400\">em um contexto mais amplo, indicando diferentes posicionamentos para <\/span><i><span style=\"font-weight: 400\">Brasiliocroton<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">Sagotia <\/span><\/i><span style=\"font-weight: 400\">e <\/span><i><span style=\"font-weight: 400\">Sandwithia<\/span><\/i><span style=\"font-weight: 400\"> que s\u00e3o discutidos do ponto de vista morfol\u00f3gico. <\/span><\/p>\n<hr align=\"center\" noshade=\"noshade\" size=\"1\" width=\"100%\" \/>\n<h3 style=\"text-align: center\">Revis\u00e3o taxon\u00f4mica, filogenia e biogeografia de Astraea Klotzsch (Euphorbiaceae)<\/h3>\n<hr align=\"center\" noshade=\"noshade\" size=\"1\" width=\"100%\" \/>\n<h4 style=\"text-align: center\"><strong>ABSTRACT<\/strong><\/h4>\n<p style=\"text-align: justify\"><i><span style=\"font-weight: 400\">Astraea<\/span><\/i><span style=\"font-weight: 400\"> belongs to tribe Crotoneae (Crotonoideae, Euphorbiaceae) along with<\/span><i><span style=\"font-weight: 400\"> Croton<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">Brasiliocroton<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">Acidocroton<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">Sagotia<\/span><\/i><span style=\"font-weight: 400\"> e <\/span><i><span style=\"font-weight: 400\">Sandwithia<\/span><\/i><span style=\"font-weight: 400\">. The genus is distributed mostly throughout the Neotropical region, but some of its species are weedy and also found along the Paleotropics. Described as a genus by Klotzsch in 1841, <\/span><i><span style=\"font-weight: 400\">Astraea<\/span><\/i><span style=\"font-weight: 400\"> was traditionally recognized as one of the morphologically best-defined sections within the giant <\/span><i><span style=\"font-weight: 400\">Croton<\/span><\/i><span style=\"font-weight: 400\"> (<\/span><i><span style=\"font-weight: 400\">C.<\/span><\/i><span style=\"font-weight: 400\"> sect. <\/span><i><span style=\"font-weight: 400\">Astraea<\/span><\/i><span style=\"font-weight: 400\">). As such, <\/span><i><span style=\"font-weight: 400\">C. <\/span><\/i><span style=\"font-weight: 400\">sect. <\/span><i><span style=\"font-weight: 400\">Astraea <\/span><\/i><span style=\"font-weight: 400\">was one of the morphologically best-defined groups within <\/span><i><span style=\"font-weight: 400\">Croton<\/span><\/i><span style=\"font-weight: 400\">. The last comprehensive monographs of <\/span><i><span style=\"font-weight: 400\">Astraea<\/span><\/i><span style=\"font-weight: 400\"> are those made by M\u00fcller Argoviensis in De Candolle&#8217;s Prodromus and Flora Brasiliensis during the 19<\/span><span style=\"font-weight: 400\">th<\/span><span style=\"font-weight: 400\"> century. In these works, many varieties are recognized for <\/span><i><span style=\"font-weight: 400\">Croton lobatus<\/span><\/i><span style=\"font-weight: 400\"> (= <\/span><i><span style=\"font-weight: 400\">A. lobata<\/span><\/i><span style=\"font-weight: 400\">), the type species of <\/span><i><span style=\"font-weight: 400\">Astraea<\/span><\/i><span style=\"font-weight: 400\"> and the most complex and widespread of its species. As consequence of recent phylogenetic studies, <\/span><i><span style=\"font-weight: 400\">C. <\/span><\/i><span style=\"font-weight: 400\">sect. <\/span><i><span style=\"font-weight: 400\">Astraea<\/span><\/i><span style=\"font-weight: 400\"> was recognized as a distinct genus. <\/span><i><span style=\"font-weight: 400\">Astraea<\/span><\/i><span style=\"font-weight: 400\"> has been included in studies mostly as outgroup and, therefore, little is known about the relationships among its species. Based on ca. 5,200 specimens from more than 90 herbaria, we present a more precise morphological delimitation for the complex <\/span><i><span style=\"font-weight: 400\">A. lobata <\/span><\/i><span style=\"font-weight: 400\">and rearrangements within the genus, which resulted in the recognition of 13 species (<\/span><i><span style=\"font-weight: 400\">A. cincta, A. comosa, A. digitata, A. gracilis, A. klotzschii, A. lobata, A. macroura, A. manihot, A. paulina, A. praetervisa, A. subcomosa, A. surinamensis <\/span><\/i><span style=\"font-weight: 400\">e<\/span><i><span style=\"font-weight: 400\"> A. trilobata<\/span><\/i><span style=\"font-weight: 400\">). The phylogenetic analysis with two plastid (<\/span><i><span style=\"font-weight: 400\">trnL-trnF<\/span><\/i><span style=\"font-weight: 400\"> and <\/span><i><span style=\"font-weight: 400\">psbA-trnH<\/span><\/i><span style=\"font-weight: 400\">) and one nuclear (ITS) regions, including more than one sample for many of the species, confirmed the monophyly of <\/span><i><span style=\"font-weight: 400\">Astraea<\/span><\/i><span style=\"font-weight: 400\">. These analyses also recognized three main clades based on morphological characters or geographical distribution. Based on the phylogenetic hypothesis, we also performed divergence time estimates and reconstructions of ancestral ranges and morphological characters states to evaluate the evolutionary history of <\/span><i><span style=\"font-weight: 400\">Astraea<\/span><\/i><span style=\"font-weight: 400\">. We also present insights into the evolution of Crotoneae in the Neotropical region and discuss the alternative positions of <\/span><i><span style=\"font-weight: 400\">Brasiliocroton, Sagotia <\/span><\/i><span style=\"font-weight: 400\">and <\/span><i><span style=\"font-weight: 400\">Sanwithia<\/span><\/i><span style=\"font-weight: 400\">.<\/span><br \/>\n<strong>Keywords<\/strong>: <i><span style=\"font-weight: 400\">Astraea lobata<\/span><\/i><span style=\"font-weight: 400\">, Crotonoideae, Crotoneae, <\/span><i><span style=\"font-weight: 400\">Brasiliocroton<\/span><\/i><span style=\"font-weight: 400\">, Neotropical Flora, <\/span><i><span style=\"font-weight: 400\">Sagotia<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">Sandwithia<\/span><\/i><\/p>\n<h4 style=\"text-align: center\"><strong>RESUMO<\/strong><\/h4>\n<p><i><span style=\"font-weight: 400\">Astraea<\/span><\/i><span style=\"font-weight: 400\"> pertence \u00e0 tribo Crotoneae (Crotonoideae, Euphorbiaceae), juntamente com <\/span><i><span style=\"font-weight: 400\">Croton<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">Brasiliocroton<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">Acidocroton<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">Sagotia<\/span><\/i><span style=\"font-weight: 400\"> e <\/span><i><span style=\"font-weight: 400\">Sandwithia<\/span><\/i><span style=\"font-weight: 400\">. Distribui-se ao longo de toda a regi\u00e3o Neotropical, mas algumas de suas esp\u00e9cies s\u00e3o ruderais e tamb\u00e9m s\u00e3o encontradas nos Paleotr\u00f3picos. Descrita como um g\u00eanero por Klotzsch em 1841, <\/span><i><span style=\"font-weight: 400\">Astraea<\/span><\/i><span style=\"font-weight: 400\"> tradicionalmente era reconhecida como uma se\u00e7\u00e3o do grande g\u00eanero <\/span><i><span style=\"font-weight: 400\">Croton<\/span><\/i><span style=\"font-weight: 400\"> (<\/span><i><span style=\"font-weight: 400\">C.<\/span><\/i><span style=\"font-weight: 400\"> sect. <\/span><i><span style=\"font-weight: 400\">Astraea<\/span><\/i><span style=\"font-weight: 400\">). E como tal, era uma das mais bem definidas morfologicamente. As monografias mais completas de <\/span><i><span style=\"font-weight: 400\">C. <\/span><\/i><span style=\"font-weight: 400\">sect. <\/span><i><span style=\"font-weight: 400\">Astraea<\/span><\/i><span style=\"font-weight: 400\"> s\u00e3o as de M\u00fcller Argoviensis para o Prodromus de Candolle e a Flora Brasiliensis, no s\u00e9culo XIX. Nestes trabalhos s\u00e3o reconhecidas diversas variedades para <\/span><i><span style=\"font-weight: 400\">C. lobatus<\/span><\/i><span style=\"font-weight: 400\"> (=<\/span><i><span style=\"font-weight: 400\">A. lobata<\/span><\/i><span style=\"font-weight: 400\">), a esp\u00e9cie tipo do g\u00eanero e a mais complexa e amplamente distribu\u00edda de suas esp\u00e9cies. Em consequ\u00eancia dos estudos filogen\u00e9ticos recentes, <\/span><i><span style=\"font-weight: 400\">Croton <\/span><\/i><span style=\"font-weight: 400\">sect. <\/span><i><span style=\"font-weight: 400\">Astraea<\/span><\/i><span style=\"font-weight: 400\"> foi reconhecida como um g\u00eanero distinto. Por terem sido inclu\u00eddas em filogenias de Crotoneae apenas como grupo externo, pouco se sabia sobre as rela\u00e7\u00f5es entre as esp\u00e9cies de <\/span><i><span style=\"font-weight: 400\">Astraea<\/span><\/i><span style=\"font-weight: 400\">. Com base em cerca de 5.200 exsicatas de mais de 90 herb\u00e1rios, apresentamos uma delimita\u00e7\u00e3o mais restrita de A.<\/span><i><span style=\"font-weight: 400\"> lobata<\/span><\/i><span style=\"font-weight: 400\"> e rearranjos no g\u00eanero que resultaram no reconhecimento de 13 esp\u00e9cies (<\/span><i><span style=\"font-weight: 400\">A. cincta, A. comosa, A. digitata, A. gracilis, A. klotzschii, A. lobata, A. macroura, A. manihot, A. paulina, A. praetervisa, A. subcomosa, A. surinamensis <\/span><\/i><span style=\"font-weight: 400\">e<\/span><i><span style=\"font-weight: 400\"> A. trilobata<\/span><\/i><span style=\"font-weight: 400\">). As an\u00e1lises filogen\u00e9ticas com dois marcadores plastidiais (<\/span><i><span style=\"font-weight: 400\">trnL-trnF<\/span><\/i><span style=\"font-weight: 400\"> e <\/span><i><span style=\"font-weight: 400\">psbA-trnH<\/span><\/i><span style=\"font-weight: 400\">) e um nuclear (ITS), incluindo m\u00faltiplas amostras para muitas das esp\u00e9cies, confirmaram o monofiletismo de <\/span><i><span style=\"font-weight: 400\">Astraea<\/span><\/i><span style=\"font-weight: 400\">. Tais an\u00e1lises reconheceram tr\u00eas clados principais suportados por caracter\u00edsticas morfol\u00f3gicas e\/ou distribui\u00e7\u00e3o geogr\u00e1fica. Baseados na hip\u00f3tese filogen\u00e9tica, realizamos estimativas de tempo de diverg\u00eancia dos clados e reconstru\u00e7\u00e3o de \u00e1reas ancestrais, bem como otimiza\u00e7\u00e3o de caracteres morfol\u00f3gicos para avaliar a hist\u00f3ria evolutiva de <\/span><i><span style=\"font-weight: 400\">Astraea<\/span><\/i><span style=\"font-weight: 400\">. Tamb\u00e9m apresentamos insights sobre a evolu\u00e7\u00e3o de Crotoneae na regi\u00e3o Neotropical e a posi\u00e7\u00e3o de <\/span><i><span style=\"font-weight: 400\">Brasiliocroton<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">Sagotia <\/span><\/i><span style=\"font-weight: 400\">e <\/span><i><span style=\"font-weight: 400\">Sandwithia<\/span><\/i><span style=\"font-weight: 400\"> na tribo.<\/span><br \/>\n<strong>Palavras-chave<\/strong>: <i><span style=\"font-weight: 400\">Astraea lobata<\/span><\/i><span style=\"font-weight: 400\">, Crotonoideae, Crotoneae, <\/span><i><span style=\"font-weight: 400\">Brasiliocroton<\/span><\/i><span style=\"font-weight: 400\">, Flora Neotropical, <\/span><i><span style=\"font-weight: 400\">Sagotia<\/span><\/i><span style=\"font-weight: 400\">, <\/span><i><span style=\"font-weight: 400\">Sandwithia<\/span><\/i><\/p>\n<h4 style=\"text-align: center\"><\/h4>\n<hr align=\"center\" noshade=\"noshade\" size=\"1\" width=\"100%\" \/>\n<p style=\"text-align: center\"><a href=\"https:\/\/smastr16.blob.core.windows.net\/pgibt\/2018\/12\/otavio_silva_dr.pdf\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter\" src=\"https:\/\/smastr16.blob.core.windows.net\/pgibt\/2013\/09\/pdf_grande.gif\" alt=\"pdf_grande\" width=\"60\" height=\"60\" \/><\/a><span style=\"color: #000000\"><a style=\"color: #000000\" href=\"https:\/\/smastr16.blob.core.windows.net\/pgibt\/2018\/12\/otavio_silva_dr.pdf\">Ot\u00e1vio Luis Marques da Silva<\/a><\/span><a href=\"https:\/\/smastr16.blob.core.windows.net\/pgibt\/2018\/12\/otavio_silva_dr.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><br \/>\nRevis\u00e3o taxon\u00f4mica, filogenia e biogeografia de Astraea Klotzsch (Euphorbiaceae)<br \/>\n<\/a><\/p>\n<hr align=\"center\" noshade=\"noshade\" size=\"1\" width=\"100%\" \/>\n<p style=\"text-align: center\"><strong>\u00a0<a href=\"www.infraestruturameioambiente.sp.gov.br\/pgibt\/dissertacoesteses\/\">VOLTAR AS DISSERTA\u00c7\u00d5ES E TESES<\/a><\/strong><\/p>\n<hr align=\"center\" noshade=\"noshade\" size=\"1\" width=\"100%\" \/>\n","protected":false},"excerpt":{"rendered":"<p>Ot\u00e1vio Luis Marques da Silva Em 09 de maio de 2018, no anfiteatro do Instituto de Bot\u00e2nica (IBt-SP), Ot\u00e1vio Luis Marques da Silva, aluno de doutorado do Programa de P\u00f3s-gradua\u00e7\u00e3o em Biodiversidade Vegetal e Meio Ambiente e bolsista da Funda\u00e7\u00e3o de Amparo \u00e0 Pesquisa do Estado de S\u00e3o Paulo (FAPESP), defendeu a sua tese intitulada [&hellip;]<\/p>\n","protected":false},"author":63,"featured_media":0,"parent":249,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/www.infraestruturameioambiente.sp.gov.br\/pgibt\/wp-json\/wp\/v2\/pages\/6666"}],"collection":[{"href":"https:\/\/www.infraestruturameioambiente.sp.gov.br\/pgibt\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.infraestruturameioambiente.sp.gov.br\/pgibt\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.infraestruturameioambiente.sp.gov.br\/pgibt\/wp-json\/wp\/v2\/users\/63"}],"replies":[{"embeddable":true,"href":"https:\/\/www.infraestruturameioambiente.sp.gov.br\/pgibt\/wp-json\/wp\/v2\/comments?post=6666"}],"version-history":[{"count":3,"href":"https:\/\/www.infraestruturameioambiente.sp.gov.br\/pgibt\/wp-json\/wp\/v2\/pages\/6666\/revisions"}],"predecessor-version":[{"id":6677,"href":"https:\/\/www.infraestruturameioambiente.sp.gov.br\/pgibt\/wp-json\/wp\/v2\/pages\/6666\/revisions\/6677"}],"up":[{"embeddable":true,"href":"https:\/\/www.infraestruturameioambiente.sp.gov.br\/pgibt\/wp-json\/wp\/v2\/pages\/249"}],"wp:attachment":[{"href":"https:\/\/www.infraestruturameioambiente.sp.gov.br\/pgibt\/wp-json\/wp\/v2\/media?parent=6666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}