{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,25]],"date-time":"2026-03-25T10:49:06Z","timestamp":1774435746549,"version":"3.50.1"},"reference-count":60,"publisher":"American Association for the Advancement of Science (AAAS)","issue":"6496","funder":[{"name":"FCT","award":["PTDC\/BIA-EVL\/31569\/2017 - NORTE -01-0145-FEDER-30288"],"award-info":[{"award-number":["PTDC\/BIA-EVL\/31569\/2017 - NORTE -01-0145-FEDER-30288"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Science"],"published-print":{"date-parts":[[2020,6,12]]},"abstract":"<jats:title>Canaries changing colors<\/jats:title>\n                  <jats:p>\n                    Many animals are sexually dimorphic, with different phenotypes in males and females. To identify the genetic basis of sexual differences in bird coloration, Gazda\n                    <jats:italic>et al.<\/jats:italic>\n                    investigated red coloration in mosaic canaries and related species (see the Perspective by Chen). Using a combination of genetic crosses, genomic mapping, transcriptomics, and comparative analyses, the authors show that trans-regulation of the carotenoid-processing gene\n                    <jats:italic>BCO2<\/jats:italic>\n                    is involved in sexual dichromatism. Although such variation in coloration among the sexes is common, particularly in birds, there are few candidate genes known to be involved. This study helps to elucidate the molecular mechanisms that underlie the evolution of dichromatism and may aid in uncovering sexually selected traits.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:italic>Science<\/jats:italic>\n                    , this issue p.\n                    <jats:related-article xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"doi\" issue=\"6496\" page=\"1270\" related-article-type=\"in-this-issue\" vol=\"368\" xlink:href=\"10.1126\/science.aba0803\">1270<\/jats:related-article>\n                    ; see also p.\n                    <jats:related-article xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"doi\" issue=\"6496\" page=\"1185\" related-article-type=\"in-this-issue\" vol=\"368\" xlink:href=\"10.1126\/science.abc2242\">1185<\/jats:related-article>\n                  <\/jats:p>","DOI":"10.1126\/science.aba0803","type":"journal-article","created":{"date-parts":[[2020,6,11]],"date-time":"2020-06-11T19:15:16Z","timestamp":1591902916000},"page":"1270-1274","source":"Crossref","is-referenced-by-count":89,"title":["A genetic mechanism for sexual dichromatism in birds"],"prefix":"10.1126","volume":"368","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8369-1350","authenticated-orcid":true,"given":"Ma\u0142gorzata A.","family":"Gazda","sequence":"first","affiliation":[{"name":"CIBIO\/InBIO, Centro de Investiga\u00e7\u00e3o em Biodiversidade e Recursos Gen\u00e9ticos, Campus Agr\u00e1rio de Vair\u00e3o, Universidade do Porto, 4485-661 Vair\u00e3o, Portugal."},{"name":"Departamento de Biologia, Faculdade de Ci\u00eancias, Universidade do Porto, Porto, Portugal."}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8367-7073","authenticated-orcid":true,"given":"Pedro M.","family":"Ara\u00fajo","sequence":"additional","affiliation":[{"name":"CIBIO\/InBIO, Centro de 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