Results 101 to 110 of about 173,196 (256)
Comparative cytogenetics of Astyanax (Teleostei: Characidae) from the upper Paraguay basin
Neotropical Ichthyology, 2018 Astyanax is one of the most abundant and diverse taxa of fishes in the Neotropical region. In order to increase the amount of cytogenetic information for Astyanax as well as to exhibit data to subsidize future taxonomic studies, this work analyzed three ...
Thais K. S. S. Teixeira +6 more
doaj +1 more source
Cryptic female choice favours sperm from major histocompatibility complex-dissimilar males [PDF]
, 2013 Cryptic female choice may enable polyandrous females to avoid inbreeding or bias offspring variability at key loci after mating. However, the role of these genetic benefits in cryptic female choice remains poorly understood. Female red junglefowl, Gallus
Alcaide M +8 more
core +1 more source
Cosmopolitan microbes and their cryptic species [PDF]
Aquatic Microbial Ecology, 2005 The notion that microbial species have cosmopolitan distribution is discussed for protists in light of the considerable genetic variation within nominal species. It is concluded that there is no compelling evidence to indicate that different genotypes ('cryptic species') have biogeographies or that they originated through allopatric speciation.
openaire +1 more source
Detecting cryptic ghost lineage introgression in four‐taxon genomic datasets
Applications in Plant Sciences, EarlyView.Abstract Premise Hybridization and introgression are pervasive evolutionary forces that have played fundamental roles in shaping the diversity of wild and domesticated plants. Four‐taxon tests for introgression provide a reliable framework for detecting signatures of ancient introgression from genomic data, which have played an important role in ...
Evan S. Forsythe +3 more
wiley +1 more source
Within-guild dietary discrimination from 3-D textural analysis of tooth microwear in insectivorous mammals [PDF]
, 2013 Resource exploitation and competition for food are important selective pressures in animal evolution. A number of recent investigations have focused on linkages between diversification, trophic morphology and diet in bats, partly because their roosting ...
Crumpton, Nicholas +4 more
core +2 more sources
An osteohistological analysis of Triceratops (Ornithischia: Ceratopsidae) cranial ornamentation
The Anatomical Record, EarlyView.Abstract Ceratopsids are among the most distinctive and well known extinct Cretaceous vertebrates, yet many details regarding the growth and composition of their cranial features are still not fully anatomically described or understood. In particular, striking cranial adornments such as the postorbital horns and parietal‐squamosal frill of Triceratops ...
Kyle D. Obuszewski +2 more
wiley +1 more source
Diversity, 2018 In this study, the organelle genomes of Polytrichum juniperinum Hedw. and Polytrichum strictum Menzies ex Brid. (Polytrichaceae, Bryophyta) from Antarctica were sequenced and compared with the plastomes of the model moss species Physcomitrella patens ...
Karine Elise Janner de Freitas +5 more
doaj +1 more source
Why do snails have hairs? A Bayesian inference of character evolution [PDF]
, 2005 Background: Costly structures need to represent an adaptive advantage in order to be maintained over evolutionary times. Contrary to many other conspicuous shell ornamentations of gastropods, the haired shells of several Stylommatophoran land snails ...
Pfenninger, Markus +3 more
core +2 more sources
Archaeology in Oceania, EarlyView.ABSTRACT The archaeological site Graman B4 provided one of the first records of substantial dietary change in ancient Australian Aboriginal society. Initial examination of the faunal remains from this site suggested that Late Holocene hunters reduced their focus on high‐ranked kangaroos to increasingly rely on arboreal possums; and that these ...
Loukas George Koungoulos +2 more
wiley +1 more source
Design and construction of a new Drosophila species, D.synthetica, by synthetic regulatory evolution [PDF]
, 2011 Here, I merge the principles of synthetic biology^1,2^ and regulatory evolution^3-11^ to create a new species^12-15^ with a minimal set of known elements.
Eduardo Moreno
core +1 more source