Origin and Genetic Uniformity of Introduced Population ofCynops pyrrhogaster(Amphibia: Urodela) on Hachijojima Island

2016 ◽  
Vol 35 (1) ◽  
pp. 64-68 ◽  
Author(s):  
Atsushi Tominaga ◽  
V. Benno Meyer-rochow ◽  
Taku Okamoto ◽  
Takeo Kuriyama ◽  
Kanto Nishikawa ◽  
...  
Keyword(s):  
Genetic Uniformity ◽  
Introduced Population

Reindeer on South Georgia. The Ecology of an Introduced Population

10.2307/5150 ◽  
1989 ◽  
Vol 58 (3) ◽  
pp. 1118
Author(s):  
Graeme Caughley ◽  
N. Leader-Williams
Keyword(s):  
South Georgia ◽  
Introduced Population

scholarly journals ESTUDIO PRELIMINAR DE LA VARIABILIDAD INTRAESPECÍFICA DE PROTEÍNAS SEMINALES EN Araujia hortorum FOURN (Apocynaceae).

2019 ◽  
pp. 28-31
Keyword(s):  
Polyacrylamide Gel Electrophoresis ◽  
Seed Proteins ◽  
Intraspecific Variability ◽  
Genetic Uniformity ◽  
Climbing Plant ◽  
Pampean Region ◽  
Natural Reserve ◽  
Palabras Clave ◽  
Small Intensity ◽  
Para Determinar

ESTUDIO PRELIMINAR DE LA VARIABILIDAD INTRAESPECÍFICA DE PROTEÍNAS SEMINALES EN Araujia hortorum FOURN (Apocynaceae). PRELIMINAR STUDY OF THE INTRASPECIFIC VARIABILITY OF SEED PROTEINS IN Araujia hortorum FOURN (Apocynaceae) Gonzales Medrano, M.F, Galvez, M.J , González, S.R y Villamil, C.B DOI: https://doi.org/10.33017/RevECIPeru2006.0016/ RESUMEN Araujia hortorum Fourn es una enredadera perenne sudamericana que se comporta como invasora en cultivos y en áreas de reserva natural. Han habido controversias sobre la conveniencia de considerarla como especie independiente o como entidad infraespecífica subordinada a A. sericifera Brot. (Araujia sericifera f. hortorum Malme). Como criterio complementario para definir esta situación se han comparado muestras de semillas provenientes de nueve poblaciones de la región pampeana argentina (A. cf. hortorum) y una coleccionada en la selva misionera (A. cf. sericifera). Mediante la utilización de los métodos de electroforesis en gel de poliacrilamida (PAGE-SDS) y de inmunotransferencia (IT, “immunoblotting”) se ha podido detectar la presencia de 19 y 18 bandas proteicas respectivamente, aunque no coincidentes entre sí. La utilización del Índice de Jaccard arrojó valores de similitud entre 0.39-1.00 y 0.53-1.00 respectivamente. Las diferencias encontradas deben atribuirse, en parte, a la dificultad para determinar la presencia o ausencia de algunas de las bandas de menor intensidad. La población misionera mostró menor similitud con las pampeanas que éstas entre sí. Los resultados obtenidos demuestran una considerable uniformidad genética entre ambas entidades putativas, lo que sugiere la necesidad de comparar poblaciones adicionales de ambas para evaluar más objetivamente la consistencia de estos métodos en su caracterización sistemática. Palabras clave: Inmunotransferencia, Araujia, proteínas seminales, Apocynaceae. ABSTRACT Araujia hortorum Fourn is a sudamerican perennial climbing plant that performs like an invasive in crops and natural reserve areas. There have been controversies about to consider it as independent specie or like an intraspecific entity dependent to A. sericifera Brot. (Araujia sericifera f. hortorum Malme). As a complement approach to define its situation, It has been compared some seeds samples coming from nine populations from Argentina‟s pampean region (A. cf. hortorum) and another from Misionera jungle (A. cf. sericifera). through use the method of polyacrylamide gel electrophoresis (PAGE-SDS) and immnunoblot assay (IT, “immunoblotting”), it have been able to detect the presence of 19 and 18 protein bands respectively, although they are not coincident to each other. The use of the Jaccard Index shows values of similarity among 0.39-1.00 and 0.53-1.00, respectively. Differences should be attributed, partly, to the difficulty to determine the presence or absence of some of the bands of small intensity. The population from Misionera jungle showed smaller similarity with the pampeans that between each other. The results realized a considerable genetic uniformity among both putative entities that suggests the necessity to compare both additional populations in order to evaluate the consistency of these methods more objectively in their systematic characterization. Keywords: Immunoblotting, Araujia, seeds proteins, Apocynaceae.

High genetic similarity between geographically distant populations in a sea anemone with low dispersal capabilities

1994 ◽  
Vol 74 (4) ◽  
pp. 895-902 ◽  
Author(s):  
A.M. Cava-Solé ◽  
J.P. Thorpe ◽  
C.D. Todd
Keyword(s):  
Larval Dispersal ◽  
Genetic Similarity ◽  
Sea Anemone ◽  
Irish Sea ◽  
Northern Irish ◽  
Genetic Uniformity ◽  
Lecithotrophic Larva ◽  
Northern North Sea ◽  
High Degree ◽  
High Genetic Similarity

Samples of the large sublittoral sea anemone Urticina eques (Gosse) were collected from three localities in the northern North Sea and from one locality in the northern Irish Sea. Around the coast the total distance between sampling sites is approximately 1,200 km. The species has a large lecithotrophic larva which may not be planktonic. All samples were screened genetically for 13 loci coding for 11 different enzymes. Results overall indicated a high degree of genetic uniformity over the four populations sampled (FST = 0·025). The data are discussed in relation to current ideas of larval dispersal and results from other similar studies. It is concluded that the lack of genetic differentiation shown by Urticina eques is surprising given the apparently poor dispersive powers of the larva.

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