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Evolution in Cnidaria
Published on Mar 21, 20123484 Views
Integrative studies merging life cycle, morphological and molecular data unravel phylogenetic patterns of Cnidaria Medusozoa, including time of origin, major evolutionary trends and patterns of divers
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Chapter list
Evolution in Cnidaria00:00
Metazoan phylogeny01:15
Maronna & Marques, 2010, Evolução dos Metazoa - 102:15
Maronna & Marques, 2010, Evolução dos Metazoa - 203:53
Phylogeny of Cnidaria: an amusing diversion04:22
Cnidaria – previous phylogenies - 106:03
Some diversity of Hexacorallia07:19
Some diversity of Octocorallia07:49
Some diversity of Medusozoa07:56
Cnidaria – previous phylogenies - 208:13
Vs.08:15
Some alternative hypotheses for cnidarian phylogeny (1940 to present)08:48
Some consistent signal in hypotheses Anthozoa is the sister group of Medusozoa08:56
Medusozoa09:52
Good roots: Anthozoa and Medusozoa14:17
Some consistent signal in hypotheses Rhizostomeae & Semaeostomeae14:37
Some consistent signal in hypotheses Scyphozoa + Stauromedusae + Cubozoa + Conulatae15:05
Some consistent signal in hypotheses Hydrozoa15:48
Just a “few” “small” questions remain about the relationships among cnidarians16:02
Cladistic analysis of Medusozoa and cnidarian evolution17:02
Congruence of phylogenetic hypotheses based on morphological/life history & 18S data17:33
Working hypothesis for relationships among cnidarian classes17:44
Most accepted phylogeny nowadays - 117:46
Most accepted phylogeny nowadays - 219:37
The evolution of metazoan axial properties - 119:42
The evolution of metazoan axial properties - 220:15
Types of gastrulation in Cnidaria - 121:20
Types of gastrulation in Cnidaria - 221:26
Types of gastrulation in Cnidaria - 322:27
The phylogenetic relationships of basal metazoans22:32
Evolution of striated muscle22:40
Hypothetical model of the early metazoan evolution - 124:09
Hypothetical model of the early metazoan evolution - 224:16
A criticism: develop and distribute new model organisms24:51
Summary of phylogenetic knowledge about currently recognized cnidarian taxa26:02
Paleontology and time of diversification - 126:35
Paleontology and time of diversification - 226:47
Cambrian (543-510 Mya)26:53
Cambrian Fauna - 127:44
Cambrian Fauna - 227:47
Exceptionally Preserved Jellyfishes from the Middle Cambrian - 127:48
Exceptionally Preserved Jellyfishes from the Middle Cambrian - 228:15
Exceptionally Preserved Jellyfishes from the Middle Cambrian - 328:19
Exceptionally Preserved Jellyfishes from the Middle Cambrian - 429:00
Exceptionally Preserved Jellyfishes from the Middle Cambrian - 529:07
Exceptionally Preserved Jellyfishes from the Middle Cambrian - 629:21
Ediacara (590 Mya)29:34
Ediacaran Fauna30:25
An early Edicaran assemblage of macroscopic and morphologically differentiated eukaryotes - 130:31
An early Edicaran assemblage of macroscopic and morphologically differentiated eukaryotes - 231:09
An early Edicaran assemblage of macroscopic and morphologically differentiated eukaryotes - 331:24
Time of origin? - 132:14
Time of origin? - 232:23
Time of origin? - 332:40
Time of origin? - 432:42
Time of origin? - 532:43
Time of origin? - 633:03
Time of origin? - 735:45
Phylogeny, taxonomy and character evolution - 135:46
Phylogeny, taxonomy and character evolution - 235:47
Evolution of Staurozoa35:51
Presence / Absence of Claustrum and Mesogonial Pockets36:40
Taxa with Claustrum / Mesogonial Pockets37:06
Absence / Presence of 4 septal muscels in peduncle - 137:15
Absence / Presence of 4 septal muscels in peduncle - 237:18
Absence / Presence of 4 septal muscels in peduncle - 337:54
Absence / Presence of 4 septal muscels in peduncle - 438:21
How to explain the evolution of adaptive characters?38:23
Character evolution and morphometry - 138:29
Character evolution and morphometry - 238:30
Evolution of nematocysts38:43
Isorhiza of tentacles: delimiting 4 species (33%)38:46
Euryteles of tentacles: delimiting 2 species (17%)39:57
Euryeles of bateries of nematocysts: delimiting nothing40:02
Concatenated analysis (3 “types” of nematocysts): delimiting 9 species (75%)40:28
Selection or absence of selection in the evolution of nematocysts?40:30
Evolution of life cycles - 141:20
Evolution of life cycles - 241:21
Molecules clarify a Cnidarian life cycle41:23
Proposal of a life cycle based on mophological and ecological data42:29
The taxonomic position of the pelagic "staurozoan" as a cerlantharlan larva43:00
Evolution of life cycles and evodevo - 145:18
Evolution of life cycles and evodevo - 245:19
Characterizing stauromedusae using gene expression45:20
Next gen sequencing45:21
Coordinator: Prof. Dr. Antonio Carlos Marques (IB – USP)45:26
Hvala!45:51
Morphological variability and its phylogenetic signal in marine colonial organisms: a case study with the family Campanulariidae (Cnidaria, Hydrozoa)46:04
The family Campanulariide Johnston, 1836 - 146:43
The family Campanulariide Johnston, 1836 - 247:07
Intraspecific morphological variability of Orthopyxis L. Agassiz, 1862 - 147:15
Intraspecific morphological variability of Orthopyxis L. Agassiz, 1862 - 247:42
Intraspecific morphological variability of Orthopyxis L. Agassiz, 1862 - 347:44
Intraspecific morphological variability of Orthopyxis L. Agassiz, 1862 - 448:09
Intraspecific morphological variability of Orthopyxis L. Agassiz, 1862 - 548:31
Intraspecific morphological variability of Orthopyxis L. Agassiz, 1862 - 648:36
Intraspecific morphological variability of Orthopyxis L. Agassiz, 1862 - 748:41
Intraspecific morphological variability of Orthopyxis L. Agassiz, 1862 - 848:48
Intraspecific morphological variability of Orthopyxis L. Agassiz, 1862 - 949:11
Intraspecific morphological variability of Orthopyxis L. Agassiz, 1862 - 1049:27
Intraspecific morphological variability of Orthopyxis L. Agassiz, 1862 - 1149:31
Intraspecific morphological variability of Orthopyxis L. Agassiz, 1862 - 1249:49
Intraspecific morphological variability of Orthopyxis L. Agassiz, 1862 - 1350:33
Intraspecific morphological variability of Orthopyxis L. Agassiz, 1862 - 1450:45
Intraspecific morphological variability of Orthopyxis L. Agassiz, 1862 - 1550:50
Intraspecific morphological variability of Orthopyxis L. Agassiz, 1862 - 1650:58
The end51:25