Results 51 to 60 of about 4,728 (220)

Differences in Specificity and Catalytic Efficiency Between Allozymes of esterase-4 From Drosophila Mojavensis

open access: yes, 1986
A more than 10-fold difference in the specificity and catalytic efficiency for 1-naphthyl esters was measured between two allozymes of esterase-4 from Drosophila mojavensis.
Pen, Jan   +3 more
core   +1 more source

Endemic but not eroded: Genomic distinctiveness and conservation genomics of the British swallowtail butterfly (Papilio machaon britannicus)

open access: yesInsect Conservation and Diversity, Volume 19, Issue 5, Page 1260-1274, September 2026.
Through whole‐genome sequencing of P. machaon populations across Europe, we demonstrate that P. m. britannicus forms a genetically distinct and isolated lineage. Demographic modelling revealed weak historical gene flow from the continent. Although P. m.
Benoit Nabholz   +6 more
wiley   +1 more source

Ecotypic and allozyme variation of Capsella bursa-pastoris and C. rubella (Brassicaceae) along latitude and altitude gradients on the Iberian Peninsula

open access: yesAnales del Jardín Botánico de Madrid, 1999
Life-history traits (onset of flowering, leaf number, rosette diameter, plant height, branching number, fruit dimensions, seed number) of Capsella species from the Iberian Península associated with colotúzing ability were compared in a random block field
Barbara Neuffer, Raimund Hoffrogge
doaj   +1 more source

Genetic composition of facultatively anadromous brown trout Salmo trutta L. in a freshwater‐lake system

open access: yesJournal of Fish Biology, Volume 109, Issue 3, Page 1747-1759, September 2026.
Abstract Brown trout (Salmo trutta) has adapted to a wide range of habitats and displays a variety of life‐history strategies. Being facultatively anadromous, populations without migration barriers to the sea consist of both resident and anadromous individuals in different proportions.
Ingerid J. Hagen   +7 more
wiley   +1 more source

Genetic structure of fragmented November moth (Lepidoptera: Geometridae) populations in farmland [PDF]

open access: yes, 2003
allozymes, conservation genetics, Epirrita dilutata, Epirrita christyi, molecular markers, habitat fragmentation, population genetic ...
Loxdale, H. D.   +9 more
core   +1 more source

Effects of Habitat Fragmentation on Genetic Diversity in Cycas Balansae (Cycadaceae)

open access: yesASEAN Journal on Science and Technology for Development, 2017
Habitat fragmentation is a serious threat to species survival. In Vietnam, Cycas balansae has been considered as threatened species because of the reduction and fragmentation of its habitats and over-exploitation.
Nguyen Minh Tam   +3 more
doaj   +1 more source

Phylogenetically Diverse Introgression Drives Subtle Population Structure in Pacific Rockfishes

open access: yesMolecular Ecology, Volume 35, Issue 17, September 2026.
ABSTRACT Genomic methods have shown that admixture and introgression are common across animal taxa. Pacific rockfishes, genus Sebastes, are a group of commercially important species that primarily inhabit inshore, shelf and slope habitats along the North American west coast. Among these, Copper and Quillback Rockfishes are closely related species known
Nathan T. B. Sykes   +5 more
wiley   +1 more source

Appendix C. Summary of allele frequencies at three allozymes (PGI, EST-1, and PGM-1) for workers and alate queens across populations of the nominal morphospecies Pogonomyrmex barbatus and P. rugosus.

open access: yes, 2016
Summary of allele frequencies at three allozymes (PGI, EST-1, and PGM-1) for workers and alate queens across populations of the nominal morphospecies Pogonomyrmex barbatus and P ...
Jürgen Gadau (76013)   +6 more
core   +1 more source

Inversion Polymorphisms Carried by Introduced Rainbow Trout Disrupt Hybrid Zones Between Native Species

open access: yesMolecular Ecology, Volume 35, Issue 18, September 2026.
ABSTRACT Genomic mechanisms explaining why some hybrid zones remain stable while others collapse into hybrid swarms are poorly understood. In Montana's Kootenai River Basin, native interior redband trout (Oncorhynchus mykiss gairdneri; IRT) and westslope cutthroat trout (O.
Craig D. Wells   +13 more
wiley   +1 more source

Quaternary Climate Oscillations Shape Genetic Diversity and Spatial Structure of Viola hybanthoides (Violaceae) Endemic to Danxia Landscape

open access: yesEcology and Evolution, Volume 16, Issue 8, August 2026.
We adopted ddRAD‐seq and chloroplast genome sequencing to explore the genetic characteristics of the danxia‐endemic species Viola hybanthoides. This species exhibits extremely low within‐population genetic diversity and obvious genetic differentiation, which is mainly driven by habitat fragmentation, restricted gene flow and Quaternary climatic changes.
Sufang Chen   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy