Results 11 to 20 of about 10,602 (212)

Mitochondrial DNA variation of Triatoma infestans populations and its implication on the specific status of T. melanosoma

open access: yesMemorias do Instituto Oswaldo Cruz, 1999
DNA sequence comparison of 412 base-pairs fragments of the mitochondrial cytochrome B gene was used to infer the genetic structure of nine geographical Triatoma infestans populations and their phylogenetic relationship with T.
Fernando A Monteiro   +8 more
doaj   +1 more source

Levels of genetic polymorphism: marker loci versus quantitative traits [PDF]

open access: yes, 1998
Species are the units used to measure ecological diversity and alleles are the units of genetic diversity. Genetic variation within and among species has been documented most extensively using allozyme electrophoresis.
Butlin R. K.   +9 more
core   +3 more sources

Biomphalaria prona (Gastropoda: Planorbidae): a morphological and biochemical study

open access: yesMemorias do Instituto Oswaldo Cruz, 1992
Two samples of Biomphalaria prona (Martens, 1873) from Lake Valencia (type locality) and seven from other Venezuelan localities were studied morphologically (shell and reproductive system) and biochemically (allozyme electrophoresis).
W. Lobato Paraense   +6 more
doaj   +1 more source

PHYLOGENY OF SOME MIDDLE AMERICAN PITVIPERS BASED ON A CLADISTIC ANALYSIS OF MITOCHONDRIAL 12S AND 16S DNA SEQUENCE INFORMATION [PDF]

open access: yes, 1999
The cladistic relationships of several Middle American pitvipers representing the genera Bothrops (sensu stricto), Bothriechis, Cerrophidion, Lachesis and Porthidium were determined using mitochondrial 12S and 16S DNA sequence information.
Crother, Brian I.   +2 more
core   +2 more sources

Preliminary results on allozyme diversity and differentiation of Norway spruce (Picea abies (L.) Karst.) in Poland based on plus tree investigations

open access: yesActa Societatis Botanicorum Poloniae, 2014
Genetic diversity and genetic differentiation among Polish populations of Norway spruce (Picea abies (L.) Karst.) were studied analyzing allozyme variation at 24 loci.
Andrzej Lewandowski   +2 more
doaj   +1 more source

Gene Flow Between Great Lakes Region Populations of the Canadian Tiger Swallowtail Butterfly, \u3ci\u3ePapilio Canadensis\u3c/i\u3e, Near the Hybrid Zone With \u3ci\u3eP. Glaucus\u3c/i\u3e (Lepidoptera: Papilionidae) [PDF]

open access: yes, 2018
Papilio canadensis were sampled from three locations on either side of Lake Michigan to study gene flow near and through a butterfly hybrid zone. Allele frequencies at four polymorphic enzyme loci, as indicated by allozyme electrophoresis, were similar ...
Crim, Amber   +3 more
core   +2 more sources

Allozyme pattern for new record of Craspedacusta sowerbii in Serbia [PDF]

open access: yesZbornik Matice Srpske za Prirodne Nauke, 2004
Cosmopolitan freshwater jellyfish Craspedacusta sowerbii L a n k e s t e r 1880 (Cnidaria, Hydrozoa) was recorded for the first time in the lake Velika peskara near Zrenjanin (Serbia and Montenegro) in summer 1998. A natural population of C.
Ludoški Jasmina Lj.   +2 more
doaj   +1 more source

The Mediterranean European hake, Merluccius merluccius: Detecting drivers influencing the Anisakis spp. larvae distribution [PDF]

open access: yes, 2018
The European hake Merluccius merluccius is one of the most commercially important and widely distributed fish species, occurring both in European and Mediterranean Sea fisheries.
Bellisario, Bruno   +9 more
core   +1 more source

Identification of Meligethes matronalis and M. subaeneus based on morphometric and ecological characters (Coleoptera: Nitidulidae)

open access: yesEuropean Journal of Entomology, 2001
An analysis of morphometric and bionomic data (as well as the genetic evidence discussed in a companion paper) clearly shows that Meligethes matronalis Audisio & Spornraft, 1990 and M.
Paolo AUDISIO   +3 more
doaj   +1 more source

Allozyme Divergence Within the Canidae [PDF]

open access: yesSystematic Zoology, 1987
Protein products of 51 genetic loci were analyzed by gel electrophoresis using extracts of blood and tissue culture specimens from 12 of the 14 extant canid genera. Genetic distances were calculated and used to derive phenetic trees. The results suggest that the Canidae can be divided into several distinct groups.
Wayne, Robert K., O'Brien, Stephen J.
openaire   +1 more source

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