{"id":646,"date":"2018-03-03T13:12:05","date_gmt":"2018-03-03T16:12:05","guid":{"rendered":"https:\/\/www.ufrgs.br\/ictio\/?p=646"},"modified":"2018-03-16T16:03:20","modified_gmt":"2018-03-16T19:03:20","slug":"publicacoes-novas-e-recentes-da-equipe-6","status":"publish","type":"post","link":"https:\/\/www.ufrgs.br\/ictio\/en\/2018\/03\/03\/publicacoes-novas-e-recentes-da-equipe-6\/","title":{"rendered":"Morphology and molecular data reveal the presence of two new species under Rhamdia quelen (Quoy &#038; Gaimard, 1824) (Siluriformes: Heptapteridae) species complex"},"content":{"rendered":"<p>ANGRIZANI, R. C.; MALABARBA, LUIZ R<\/p>\n<p>The eustatic movements triggered by glaciations during the Quaternary have shaped the landscape of Brazilian Atlantic Coast. Cyclic sea-level changes either isolated or connected freshwater fish populations, impacting their distribution and diversification.\u00a0<em>Rhamdia quelen\u00a0<\/em>has been widely recorded from the Brazilian Atlantic Coastal rivers, but it is also considered a species complex. A phylogeographic study carried out using three molecular markers of mtDNA and one of nDNA in the populations of\u00a0<em>Rhamdia\u00a0<\/em>from the hydrographic basins of Southern Atlantic Coast of Brazil recovered three evolutionarily distinct groups: one represented by the populations found in lowlands of all studied watersheds; the second group composed of populations found in the upper tributaries of the rio Ararangu\u00e1, rio Mampituba and rio Tramanda\u00ed; and a third group found exclusively in the upper portions of rio Tubar\u00e3o. The genetic divergences among these three lineages of\u00a0<em>Rhamdia<\/em>\u00a0is discussed according to sea level changes in the Quaternary. Two new species of<em>\u00a0Rhamdia<\/em>\u00a0are diagnosed and described based on morphological and molecular evidence.<\/p>\n<p>Angrizani, R. C. ; Malabarba, Luiz R. . Morphology and molecular data reveal the presence of two new species under Rhamdia quelen (Quoy &amp; Gaimard, 1824) (Siluriformes: Heptapteridae) species complex. Zootaxa, v. 4388, p. 44, 2018.\u00a0<a href=\"http:\/\/dx.doi.org\/10.11646\/zootaxa.4388.1.3\" target=\"_blank\" rel=\"nofollow noopener noreferrer\" data-ft=\"{&quot;tn&quot;:&quot;-U&quot;}\" data-lynx-mode=\"asynclazy\" data-lynx-uri=\"https:\/\/l.facebook.com\/l.php?u=http%3A%2F%2Fdx.doi.org%2F10.11646%2Fzootaxa.4388.1.3&amp;h=ATNGXUACD7UNDJ9uAEP6Obfn8Tx3xNJOWw7VLpVCDLgwvN80gRXBtgkIC9k8cPkGLo4irLLgjcDGT12yVWQkco6-2D6QgP2nkEh42HrC1_n3R7NCFlZOBbye2LvHlY0PCu1gwH4\">http:\/\/dx.doi.org\/10.11646\/zootaxa.4388.1.3<\/a><\/p>\n<p><div id=\"attachment_670-2\" style=\"width: 1098px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.ufrgs.br\/ictio\/wp-content\/uploads\/2018\/03\/1.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-670-2\" class=\"wp-image-670 size-full\" src=\"https:\/\/www.ufrgs.br\/ictio\/wp-content\/uploads\/2018\/03\/1.jpg\" alt=\"\" width=\"1088\" height=\"578\" srcset=\"https:\/\/www.ufrgs.br\/ictio\/wp-content\/uploads\/2018\/03\/1.jpg 1088w, https:\/\/www.ufrgs.br\/ictio\/wp-content\/uploads\/2018\/03\/1-300x159.jpg 300w, https:\/\/www.ufrgs.br\/ictio\/wp-content\/uploads\/2018\/03\/1-768x408.jpg 768w, https:\/\/www.ufrgs.br\/ictio\/wp-content\/uploads\/2018\/03\/1-1024x544.jpg 1024w, https:\/\/www.ufrgs.br\/ictio\/wp-content\/uploads\/2018\/03\/1-624x332.jpg 624w\" sizes=\"auto, (max-width: 1088px) 100vw, 1088px\" \/><\/a><p id=\"caption-attachment-670-2\" class=\"wp-caption-text\">Figure Left: Holotype of Rhamdia gabrielae (UFRGS 20010), holotype, 194 mm SL. In dorsal, lateral, and ventral views. Figure Right: Rhamdia eurycephala (UFRGS 19908), holotype, 246.6 mm SL. In dorsal, lateral, and ventral views.<\/p><\/div><\/p>","protected":false},"excerpt":{"rendered":"<p>ANGRIZANI, R. C.; MALABARBA, LUIZ R The eustatic movements triggered by glaciations during the Quaternary have shaped the landscape of Brazilian Atlantic Coast. Cyclic sea-level changes either isolated or connected freshwater fish populations, impacting their distribution and diversification.\u00a0Rhamdia quelen\u00a0has been widely recorded from the Brazilian Atlantic Coastal rivers, but it is also considered a species [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-646","post","type-post","status-publish","format-standard","hentry","category-sem-categoria"],"_links":{"self":[{"href":"https:\/\/www.ufrgs.br\/ictio\/en\/wp-json\/wp\/v2\/posts\/646","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ufrgs.br\/ictio\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ufrgs.br\/ictio\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ufrgs.br\/ictio\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ufrgs.br\/ictio\/en\/wp-json\/wp\/v2\/comments?post=646"}],"version-history":[{"count":4,"href":"https:\/\/www.ufrgs.br\/ictio\/en\/wp-json\/wp\/v2\/posts\/646\/revisions"}],"predecessor-version":[{"id":672,"href":"https:\/\/www.ufrgs.br\/ictio\/en\/wp-json\/wp\/v2\/posts\/646\/revisions\/672"}],"wp:attachment":[{"href":"https:\/\/www.ufrgs.br\/ictio\/en\/wp-json\/wp\/v2\/media?parent=646"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ufrgs.br\/ictio\/en\/wp-json\/wp\/v2\/categories?post=646"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ufrgs.br\/ictio\/en\/wp-json\/wp\/v2\/tags?post=646"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}