Results 91 to 100 of about 1,490 (199)

Phylogenetic analysis of the SAP30 family of transcriptional regulators reveals functional divergence in the domain that binds the nuclear matrix

open access: yesBMC Evolutionary Biology, 2009
Background Deacetylation of histones plays a fundamental role in gene silencing, and this is mediated by a corepressor complex containing Sin3 as an essential scaffold protein.
Mäki Markku   +3 more
doaj   +1 more source

Figure 19 in The comparative osteology and phylogenetic relationships of African and South American lungfishes (Sarcopterygii: Dipnoi)

open access: yes, 2015
Figure 19. Left and right pterygoids and pterygoid tooth plates of Protopterus annectens, TMM M 2494: A, occlusal view; B, dorsal view. Anterior is to the top. Scale bar: 5 mm.
Criswell, Katharine E.
core   +1 more source

Figure 31 in The comparative osteology and phylogenetic relationships of African and South American lungfishes (Sarcopterygii: Dipnoi)

open access: yes, 2015
Figure 31. Left exoccipital of Protopterus annectens, TMM M 2494: A, lateral view, anterior to the left; B, medial view, anterior to the right; C, dorsal view, anterior to the left. Scale bar: 5 mm.
Criswell, Katharine E.
core   +1 more source

A NEW PHYLOGENETIC ANALYSIS AND CHARACTER MATRIX REASSESSMENT FOR THE COELACANTHS (SARCOPTERYGII: COELACANTHIFORMES)

open access: yes, 2023
3524 pages ; Coelacanths are a lineage of sarcopterygian fishes dating at least to the Early Devonian. They are the extant outgroup to (lungfishes + tetrapods) and are represented by two modern species in the genus Latimeria. Known from fossil material since 1822, coelacanths captured international attention upon the 1938 discovery of a living specimen.
openaire   +2 more sources

Figure 49. Character states for characters 26 in The comparative osteology and phylogenetic relationships of African and South American lungfishes (Sarcopterygii: Dipnoi)

open access: yes, 2015
Figure 49. Character states for characters 26 (presence of splenial) and 27 (relative length of angular). The articulated skull, mandible, and pectoral girdle in left lateral view of: A, Neoceratodus forsteri, AMS I-40438-001; B, Protopterus aethiopicus,
Criswell, Katharine E.
core   +1 more source

The nanos1 gene was duplicated in early Vertebrates and the two paralogs show different gonadal expression profiles in a shark

open access: yesScientific Reports, 2018
Nanos are RNA-binding proteins playing crucial roles in germ cell development and maintenance. Based on phylogenetic and synteny analyses, this study reveals that nanos1 gene has undergone multiple duplications and gene copies losses in Vertebrates ...
Laura Gribouval   +8 more
doaj   +1 more source

Figure 11 in The comparative osteology and phylogenetic relationships of African and South American lungfishes (Sarcopterygii: Dipnoi)

open access: yes, 2015
Figure 11. Dorsal view of the computed tomography reconstructions of the left supraorbitals of extant lungfishes, anterior to the left: A, Lepidosiren paradoxa, CAS 61327; B, Protopterus annectens, TMM M 1129; C, Protopterus dolloi, AMNH 246385; D ...
Criswell, Katharine E.
core   +1 more source

Figure 53 in The comparative osteology and phylogenetic relationships of African and South American lungfishes (Sarcopterygii: Dipnoi)

open access: yes, 2015
Figure 53. Hypotheses of relationships for extinct and extant lungfish: A, strict consensus tree derived from morphological data and recovered using maximum parsimony; B, tree including only extant lungfish, derived from molecular sequences, and ...
Criswell, Katharine E.
core   +1 more source

Further evidence for the presence of holoptychiid porolepiforms (Sarcopterygii, Dipnomorpha) from the Frasnian of Colombia

open access: yesComptes Rendus Palevol, 2014
Abstract The Devonian (Frasnian) of Colombia has provided important information on the taxonomical diversity and palaeobiogeographic relationships of the Late Devonian marginal marine vertebrate faunas of South America (northwestern margin of Gondwana).
Jorge Mondéjar-Fernández   +1 more
openaire   +1 more source

Figure 14 in The comparative osteology and phylogenetic relationships of African and South American lungfishes (Sarcopterygii: Dipnoi)

open access: yes, 2015
Figure 14. Dorsal view of the computed tomography reconstructions of the frontoparietals of extant lungfishes, anterior to the left: A, Protopterus aethiopicus, UF 137272; B, Protopterus annectens, TMM M 1129; C, Lepidosiren paradoxa, CAS 61327; D ...
Criswell, Katharine E.
core   +1 more source

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