Yolk-platelet crystals in three ancient bony fishes: Polypterus bichir (polypteri), Amia calva L., and Lepisosteus osseus (L.) (Holostei)

1982 ◽  
Vol 222 (1) ◽  
pp. 159-165 ◽  
Author(s):  
Rainer H. Lange ◽  
Zygmunt Grodziński ◽  
Wincenty Kilarski
Keyword(s):  
Bony Fishes ◽  
Amia Calva ◽  
Yolk Platelet

scholarly journals The bowfin genome illuminates the developmental evolution of ray-finned fishes

2021 ◽  
Vol 53 (9) ◽  
pp. 1373-1384 ◽  
Author(s):  
Andrew W. Thompson ◽  
M. Brent Hawkins ◽  
Elise Parey ◽  
Dustin J. Wcisel ◽  
Tatsuya Ota ◽  
...  
Keyword(s):  
Gene Expression ◽  
Gene Order ◽  
Chromatin Accessibility ◽  
Phylogenetic Position ◽  
Developmental Evolution ◽  
Bony Fishes ◽  
Regulatory Loci ◽  
Gene Regulatory ◽  
Amia Calva ◽  
Chromosome Level

AbstractThe bowfin (Amia calva) is a ray-finned fish that possesses a unique suite of ancestral and derived phenotypes, which are key to understanding vertebrate evolution. The phylogenetic position of bowfin as a representative of neopterygian fishes, its archetypical body plan and its unduplicated and slowly evolving genome make bowfin a central species for the genomic exploration of ray-finned fishes. Here we present a chromosome-level genome assembly for bowfin that enables gene-order analyses, settling long-debated neopterygian phylogenetic relationships. We examine chromatin accessibility and gene expression through bowfin development to investigate the evolution of immune, scale, respiratory and fin skeletal systems and identify hundreds of gene-regulatory loci conserved across vertebrates. These resources connect developmental evolution among bony fishes, further highlighting the bowfin’s importance for illuminating vertebrate biology and diversity in the genomic era.

scholarly journals The genome of the bowfin (Amia calva) illuminates the developmental evolution of ray-finned fishes

2020 ◽  
Author(s):  
Andrew Thompson ◽  
Michael Hawkins ◽  
Elise Parey ◽  
Dustin Wcisel ◽  
Tatsuya Ota ◽  
...  
Keyword(s):  
Skeletal Development ◽  
Chromatin Accessibility ◽  
Respiratory Organ ◽  
Developmental Evolution ◽  
Evolution And Development ◽  
Bony Fishes ◽  
Key Species ◽  
Regulatory Loci ◽  
Gene Regulatory ◽  
Amia Calva

Abstract The bowfin fish (Amia calva) diverged before the genome duplication in teleost fishes, and its archetypical body plan and slow rate of molecular evolution make it a key species for genomic exploration as a basal representative of the neopterygian fishes. To investigate the evolution and development of ray-finned fishes, we generated a chromosome-level genome assembly for bowfin that enables gene-order analyses which settle its long-debated, phylogenetic relationship with gars. We analyze the genomic underpinnings of the bowfin’s unique combination of derived and ancestral phenotypes involving the immune system as well as scale, respiratory organ, and skeletal development. By detailing chromatin accessibility and gene expression through bowfin development, we connect developmental gene regulatory loci across vertebrates. We illustrate the utility of these genomic resources to connect developmental evolution across bony fishes, showing the importance of bowfin in understanding vertebrate biology and diversity.

Soft-rayed Bony Fishes: Orders Isospondyli and Giganturoidei

2018 ◽  
Author(s):  
HENRY B. BIGELOW ◽  
DANIEL M. COHEN ◽  
MYVANWY M. DICK ◽  
ROBERT H. GIBBS ◽  
MARION GREY ◽  
...  
Keyword(s):  
Bony Fishes

scholarly journals MOLECULAR ZOOGEOGRAPHY OF FRESHWATER FISHES IN THE SOUTHEASTERN UNITED STATES

Genetics ◽  
1986 ◽  
Vol 113 (4) ◽  
pp. 939-965
Author(s):  
Eldredge Bermingham ◽  
John C Avise
Keyword(s):  
South Carolina ◽  
Southeastern United States ◽  
Population Subdivision ◽  
Positive Role ◽  
Level Change ◽  
Historical Factors ◽  
Length Polymorphisms ◽  
Amia Calva ◽  
River Drainages ◽  
Distributional Limits

ABSTRACT Restriction fragment length polymorphisms in mitochondrial DNA (mtDNA) were used to reconstruct evolutionary relationships of conspecific populations in four species of freshwater fish—Amia calva, Lepomis punctatus, L. gulosus, and L. microlophus. A suite of 14-17 endonucleases was employed to assay mtDNAs from 305 specimens collected from 14 river drainages extending from South Carolina to Louisiana. Extensive mtDNA polymorphism was observed within each assayed species. In both phenograms and Wagner parsimony networks, mtDNA clones that were closely related genetically were usually geographically contiguous. Within each species, major mtDNA phylogenetic breaks also distinguished populations from separate geographic regions, demonstrating that dispersal and gene flow have not been sufficient to override geographic influences on population subdivision.—Importantly, there were strong patterns of congruence across species in the geographic placements of the mtDNA phylogenetic breaks. Three major boundary regions were characterized by concentrations of phylogenetic discontinuities, and these zones agree well with previously described zoogeographic boundaries identified by a different kind of data base—distributional limits of species—suggesting that a common set of historical factors may account for both phenomena. Repeated episodes of eustatic sea level change along a relatively static continental morphology are the likely causes of several patterns of drainage isolation and coalescence, and these are discussed in relation to the genetic data.—Overall, results exemplify the positive role that intraspecific genetic analyses may play in historical zoogeographic reconstruction. They also point out the potential inadequacies of any interpretations of population genetic structure that fail to consider the influences of history in shaping that structure.

Illustration of a Bowfin Amia calva

Fisheries ◽  
2021 ◽  
Vol 46 (1) ◽  
pp. 52-52
Author(s):  
Peter Turcik
Keyword(s):  
Amia Calva

Tooth replacement in the bowfin (Amia calva ? Holostei)

1973 ◽  
Vol 140 (4) ◽  
pp. 381-395 ◽  
Author(s):  
William A. Miller ◽  
Carolyn J. P. Radnor
Keyword(s):  
Tooth Replacement ◽  
Amia Calva

IX.—The Postcranial Skeleton of Ensthenopteron foordi Whiteaves

1970 ◽  
Vol 68 (9) ◽  
pp. 207-329 ◽  
Author(s):  
S. Mahala Andrews ◽  
T. Stanley Westoll
Keyword(s):  
Functional Analysis ◽  
Postcranial Skeleton ◽  
Bony Fishes ◽  
Mode Of Life

SynopsisWell preserved material of the crossopterygian fish Eusthenopteron enables fresh reconstructions and interpretations of its postcranial skeleton to be given. Comparisons throughout with other bony fishes show that it may be primitive in many features. Similarities with early amphibians such as the screw-shaped glenoid, the form of the humerus (on which an attempt to restore the pectoral musculature is based), the dorsal bicipital ribs and the possibility of a sacral attachment, throw much light on the origin of the tetrapod postcranial skeleton, particularly of the cheiropterygium. A functional analysis of the skeleton of Ensthenopteron is attempted, suggesting that it resembled the pike (Esox) in its mode of life and that it may have been capable of short journeys “walking” overland. The possible selective factors stimulating the evolution of such a fish, and further evolution to the tetrapod stage are discussed.

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