An electrophoretic study of the phylogenetic relationships among four species of sticklebacks (Pisces: Gasterosteidae)

1984 ◽  
Vol 62 (11) ◽  
pp. 2313-2316 ◽  
Author(s):  
Jocelyn Hudon ◽  
Helga Guderley
Keyword(s):  
Phylogenetic Relationships ◽  
Gasterosteus Aculeatus ◽  
Genetic Relationships ◽  
Cladistic Analysis ◽  
Allozyme Variation ◽  
Congeneric Species ◽  
Phenetic Analysis ◽  
Pungitius Pungitius ◽  
Electrophoretic Study ◽  
Apeltes Quadracus

The genetic relationships between four species of sticklebacks, Gasterosteus aculeatus Linneaus form trachurus, Gasterosteus wheatlandi Putnam, Pungitius pungitius (Linneaus), and Apeltes quadracus (Mitchill) were estimated by a locus-by-locus analysis of interspecific allozyme variation as well as by a band-counting analysis of soluble proteins in muscle. The locus-by-locus data was analysed both by a qualitative cladistic analysis and by a quantitative phenetic analysis. Both the locus-by-locus analysis and the band-counting analysis generated phylogenies which concord with the previously established relationships among these species. Our analyses indicate that these species have diverged considerably with a genetic identity of only 0.37 between the two congeneric species.

Parasites of Freshwater and Anadromous Fishes from Matamek River System, Quebec

1974 ◽  
Vol 31 (6) ◽  
pp. 1135-1139 ◽  
Author(s):  
George Hanek ◽  
Kalman Molnar
Keyword(s):  
Salmo Salar ◽  
Gasterosteus Aculeatus ◽  
Salvelinus Fontinalis ◽  
River System ◽  
Anguilla Rostrata ◽  
Osmerus Mordax ◽  
Pungitius Pungitius ◽  
Apeltes Quadracus ◽  
Catostomus Catostomus

In 224 fish of nine species from Matamek River system 38 genera of parasites were recovered (12 Protozoa, 3 Monogenea, 6 Digenea, 6 Cestoda, 6 Nematoda, 2 Acanthocephala, 3 Copepoda). Six genera of parasites were noted in Salmo salar, Salvelinus fontinalis harbored 17 genera, S. alpinus 5 genera, Osmerus mordax 4 genera, Anguilla rostrata 9 genera, Catostomus catostomus 8 genera, Apeltes quadracus 1 genus, Gasterosteus aculeatus 12 genera, and Pungitius pungitius 9 genera.

Evidence for differential predation on an estuarine stickleback community

1981 ◽  
Vol 59 (12) ◽  
pp. 2394-2395 ◽  
Author(s):  
Gérard J. FitzGerald ◽  
Jean-Denis Dutil
Keyword(s):  
Gasterosteus Aculeatus ◽  
Pungitius Pungitius ◽  
Lawrence Estuary ◽  
Nycticorax Nycticorax ◽  
Nest Sites ◽  
Differential Predation ◽  
Apeltes Quadracus ◽  
Breeding Grounds ◽  
Night Heron ◽  
St Lawrence Estuary

The diet of the black-crowned night heron (Nycticorax nycticorax) feeding in June and July along the southern shore of the St. Lawrence Estuary was composed primarily of the threespine stickleback Gasterosteus aculeatus. Three other sticklebacks, G. wheatlandi, Pungitius pungitius, and Apeltes quadracus occur in areas where the birds feed but were not eaten. It is suggested that differential predation on G. aculeatus may diminish interspecific competition for nest sites where the four stickleback species co-occur on the breeding grounds.

The glochidia of certain Unionidae (Mollusca) in Nova Scotia and their fish hosts

1975 ◽  
Vol 53 (1) ◽  
pp. 33-41 ◽  
Author(s):  
Michael Wiles
Keyword(s):  
Nova Scotia ◽  
Fish Species ◽  
Host Species ◽  
Gasterosteus Aculeatus ◽  
Catostomus Commersoni ◽  
Pungitius Pungitius ◽  
Apeltes Quadracus ◽  
Early Fall ◽  
Fish Hosts ◽  
Nova Scotian

Morphological and morphometric comparisons among adult and glochidial unionids from two Nova Scotian locations showed that Anodonta implicata, A. cataracta cataracta, A. c. fragilis, Elliptio complanatus, and Lampsilis radiata radiata were present. Gravidity studies suggested that fully developed glochidia occur from September to May in Anodonta marsupia, for only 5–6 weeks in June and July in E. complanatus, and perhaps at least from spring to early fall in L. r. radiata. Seven of 12 fish species sampled bore glochidia, which were identified in five host species by comparisons of their shapes and dimensions with those of glochidia from adult clams. Results were as follows: A. c. cataracta in Catostomus commersoni in June only, A. implicata or A. c. cataracta in Gasterosteus aculeatus in May and June, Anodonta sp. in Apeltes quadracus and Pungitius pungitius in June, and E. complanatus in Fundulus diaphanus in June and July. Thus, no relationships between gravidity periods of adult clams and infestation periods of their fish hosts by their glochidia were evident for species of Anodonta.

scholarly journals GENETIC RELATIONSHIP AMONG STRAINS OF XYLELLA FASTIDIOSA BASED ON RAPD-PCR DATA

HortScience ◽  
1995 ◽  
Vol 30 (2) ◽  
pp. 192e-192
Author(s):  
Margaret Pooler ◽  
John S. Hartung
Keyword(s):  
Xylella Fastidiosa ◽  
Genetic Relationships ◽  
Random Amplified Polymorphic Dna ◽  
Cladistic Analysis ◽  
Pcr Amplification ◽  
Similarity Matrix ◽  
Phenetic Analysis ◽  
Rapd Pcr ◽  
Polymorphic Bands ◽  
Similarity Relationships

Xylella fastidiosa is a fastidious gram-negative, xylem-limited, leafhopper-transmitted bacterium that has proven to be the casual agent of many economically important diseases, including Pierce's disease of grapevine and citrus variegated chlorosis. Genetic relationships among 11 Xylella fastidiosa strains isolated from mulberry, almond, ragweed, grape, plum, elm, and citrus were determined using random amplified polymorphic DNA (RAPD). Twenty-two 10 base primers amplified a total of 77 discrete polymorphic bands. Phenetic analysis based on a similarity matrix corresponded well with previous reports on X. fastidiosa RFLP-based similarity relationships, indicating that RAPD-PCR amplification products can be used as a reliable indicator of genetic distance in X. fastidiosa. Cladistic analysis suggests the existence of five groups of X. fastidosa: the citrus group, the plum-elm group, the grape-ragweed group, the almond group, and the mulberry group.

The systematics and zoogeography of Gyrodactylus species (Monogenea) parasitizing gasterosteid fishes in North America

1985 ◽  
Vol 63 (4) ◽  
pp. 956-960 ◽  
Author(s):  
D. K. Cone ◽  
M. Wiles
Keyword(s):  
North America ◽  
Gasterosteus Aculeatus ◽  
Pacific Coast ◽  
Sister Species ◽  
Pungitius Pungitius ◽  
Culaea Inconstans ◽  
Fresh Material ◽  
Apeltes Quadracus ◽  
Unidentified Species ◽  
Host Fishes

The systematics and zoogeography of Gyrodactylus from gasterosteid fishes (Apeltes quadracus, Culaea inconstans, Pungitius pungitius, Gasterosteus aculeatus, and G. wheatlandi) in North America were examined through a study of museum-held specimens and fresh material collected from localities across Canada. Six species are considered specific to these fishes, namely: G. alexanderi Mizelle and Kritsky, 1967, G. avalonia Hanek and Threlfall, 1969 (syn. G. lairdi Hanek and Threlfall, 1969, G. memorialis Hanek and Threlfall, 1969, G. terranovae Hanek and Threlfall, 1969), G. canadensis Hanek and Threlfall, 1969, G. cameroni Hanek and Threlfall, 1970, G. eucaliae lkezaki and Hoffman, 1957, and an unidentified species resembling G. pungitii Malmberg, 1964. The fauna has striking morphological similarities to that parasitizing the same host fishes in Eurasia. In fact, G. avalonia, G. canadensis, and the unconfirmed species are considered sister species to G. arcuatus Bychowsky, 1933, G. branchicus Malmberg, 1964, and G. pungitii, respectively. The match-ups are considered to have evolved from three lineages that parasitized G. aculeatus and P. pungitius prior to Pleistocene dispersal that resulted in these fishes and their parasites extending over much of the northern hemisphere. Gyrodactylus cameroni from A. quadracus is probably of North American origin and a sister species of G. avalonia. Gyrodactylus alexanderi from Pacific coast G. aculeatus and G. eucaliae from C. inconstans in the continent's central region have ties with a Pacific lineage. The parasites' geographical distributions and possible evolutionary histories since Pleistocene glaciation are discussed.

Cladistic analysis of Triticeae by means of Farris's "distance Wagner procedure"

1982 ◽  
Vol 60 (7) ◽  
pp. 1194-1199 ◽  
Author(s):  
Bernard R. Baum
Keyword(s):  
Phylogenetic Relationships ◽  
Dimensional Space ◽  
Genetic Relationships ◽  
Cladistic Analysis ◽  
Morphological Data ◽  
Two Dimensional ◽  
Dissimilarity Matrix

A dissimilarity matrix of genera of Triticeae, computed from the amalgamation of morphological data and genetic relationships in terms of successful crosses between the genera, has been subjected to Farris's distance Wagner procedure. One of the almost identical two Wagner networks obtained was superimposed on an ordination plot of the genera in two-dimensional space. This enabled representation of the multidimensionality of the phylogenetic relationships among the genera of this tribe. The findings and interpretation are discussed and compared with results on intergeneric relationships obtained by various cytogeneticists.

Allozyme Variation and Genetic Relationships among Species of Cimicifuga (Ranunculaceae) from Korea

2000 ◽  
Vol 161 (3) ◽  
pp. 413-423 ◽  
Author(s):  
Hyun‐Woo Lee ◽  
Myong Gi Chung ◽  
Youngbae Suh ◽  
Chong‐Wook Park
Keyword(s):  
Genetic Relationships ◽  
Allozyme Variation
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