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Journal of Heredity

Thyago Vanderlinde, Eduardo Guimarães Dupim, Nestor O Nazario-Yepiz, Antonio Bernardo Carvalho
Three North American cactophilic Drosophila species, D. mojavensis, D. arizonae, and D. navojoa are of considerable evolutionary interest owing to the shift from breeding in Opuntia cacti to columnar species. The three species form the "mojavensis cluster" of Drosophila. The genome of D. mojavensis was sequenced in 2007 and the genomes of D.navojoa and D. arizonae were sequenced together in 2016 using the same technology (Illumina) and assembly software (AllPaths-LG). Yet, unfortunately, the D. navojoa genome was considerably more fragmented and incomplete than its sister species, rendering it less useful for evolutionary genetic studies...
November 13, 2018: Journal of Heredity
Alejandra Delprat, Yolanda Guillén, Alfredo Ruiz
We investigated rates of chromosomal evolution in Drosophila mojavensis using whole-genome sequence information from D. mojavensis, D. buzzatii and D. virilis. D. mojavensis is a cactophilic species of the repleta group living under extreme ecological conditions in the deserts of the Southwestern USA and Northwestern México. The genome of D. buzzatii, another member of the repleta group, was recently sequenced and the largest scaffolds anchored to all chromosomes using diverse procedures. Chromosome organization between D...
November 8, 2018: Journal of Heredity
Rogerio Pincela Mateus P, Nestor O Nazario-Yepiz, Enrique Ibarra-Laclette, Mariana Ramirez Loustalot Laclette, Therese Ann Markow
Drosophila mojavensis normally breeds in necrotic columnar cactus, but they also feed and breed in Opuntia fruit (prickly pear) which serves as a seasonal resource. The prickly pear fruits are much different chemically from cacti, mainly in their free sugars and lipid content, raising the question of the effects of this seasonal shift on fitness and on gene expression. Here we reared three isofemale strains of D. mojavensis collected from different parts of the species' range on semi-natural medium of either cactus or prickly pear fruit and measured the development time, survival, body weights and desiccation resistance...
October 29, 2018: Journal of Heredity
Amber Crowley-Gall, Mary Shaw, Stephanie M Rollmann
Many organisms live in complex environments that vary geographically in resource availability. This environmental heterogeneity can lead to changes within species in their phenotypic traits. For example, in many herbivorous insects, variation in host plant availability has been shown to influence insect host preference behavior. This behavior can be mediated in part through the insect olfactory system and the odor-evoked responses of olfactory receptor neurons (ORNs), which are in turn mediated by their corresponding odorant receptor genes...
October 9, 2018: Journal of Heredity
Dora Yovana Barrios-Leal, João Neves-da-Rocha, Maura Helena Manfrin
Biodiversity is the result of historical and recurrent events acting on populations and species. The Drosophila buzzatii species cluster is distributed along a diagonal of open areas in South America. Combining genetic analyses with species distribution models we evaluated the influence of climatic changes in the demography history of this cluster. We performed a Bayesian Skyline analysis and reconstructed the ancestral areas based on mitochondrial cytochrome oxidase I (mtCOI) gene. We modeled the current distribution and projected it to past (mid-Holocene and Last Glacial Maximum) and future...
September 25, 2018: Journal of Heredity
Victor C Mason, Kristofer M Helgen, William J Murphy
The evolutionary history of the colugo, a gliding arboreal mammal distributed throughout Sundaland, was influenced by the location of and connections between forest habitats. By comparing colugo phylogenetic patterns, species ecology, sample distributions, and times of divergence to those of other Sundaic taxa with different life history traits and dispersal capabilities, we inferred the probable distribution of paleo-forest corridors and their influence on observed biogeographic patterns. We identified a consistent pattern of early diversification between east and west Bornean lineages in colugos, lesser mouse deer, and Sunda pangolins...
September 21, 2018: Journal of Heredity
Spartaco Gippoliti, Jan Robovský
No abstract text is available yet for this article.
October 31, 2018: Journal of Heredity
Adam G Jones, Reinhard Bürger, Stevan J Arnold
Genetic variation plays a fundamental role in all models of evolution. For phenotypes composed of multiple quantitative traits, genetic variation is best quantified as additive genetic variances and covariances, as these values determine the rate and trajectory of evolution. Additive genetic variances and covariances are often summarized conveniently in the G-matrix, which has additive genetic variances for each trait on the diagonal and additive genetic covariances as its off-diagonal elements. The evolution of the G-matrix is an interesting topic in its own right, because the processes that affect trait means also affect the distribution of standing genetic variation, which, in turn, feeds back to affect the rate of change of trait means...
October 31, 2018: Journal of Heredity
Jaroslav Klápšte, Mari Suontama, Heidi S Dungey, Emily J Telfer, Natalie J Graham, Charlie B Low, Grahame T Stovold
Open-pollinated (OP) mating is frequently used in forest tree breeding due to the relative temporal and financial efficiency of the approach. The trade-off is the lower precision of the estimated genetic parameters. Pedigree/sib-ship reconstruction has been proven as a tool to correct and complete pedigree information and to improve the precision of genetic parameter estimates. Our study analyzed an advanced generation Eucalyptus population from an OP breeding program using single-step genetic evaluation. The relationship matrix inferred from sib-ship reconstruction was used to rescale the marker-based relationship matrix (G matrix)...
October 31, 2018: Journal of Heredity
Mirjam M I Minkner, Christopher Young, Federica Amici, Richard McFarland, Louise Barrett, J Paul Grobler, S Peter Henzi, Anja Widdig
Male reproductive strategies have been well studied in primate species where the ability of males to monopolize reproductive access is high. Less is known about species where males cannot monopolize mating access. Vervet monkeys (Chlorocebus pygerythrus) are interesting in this regard as female codominance reduces the potential for male monopolization. Under this condition, we assessed whether male dominance rank still influences male mating and reproductive success, by assigning paternities to infants in a population of wild vervets in the Eastern Cape, South Africa...
October 31, 2018: Journal of Heredity
Susana Caballero, Claudia Hollatz, Sebastián Rodríguez, Fernando Trujillo, C Scott Baker
Coastal and freshwater cetaceans are particularly vulnerable due to their proximity to human activity, localized distributions, and small home ranges. These species include Sotalia guianensis, found in the Atlantic and Caribbean coastal areas of central and South America, and Sotalia fluviatilis, distributed in the Amazon River and tributaries. We investigated the population structure and genetic diversity of these 2 species by analyses of mtDNA control region and 8-10 microsatellite loci. MtDNA analyses revealed strong regional structuring for S...
October 31, 2018: Journal of Heredity
Djingdia Lompo, Barbara Vinceti, Heino Konrad, Hannes Gaisberger, Thomas Geburek
The evolutionary history of African savannah tree species is crucial for the management of their genetic resources. In this study, we investigated the phylogeography of Parkia biglobosa and its modeled distribution under past and present climate conditions. This tree species is very valued and widespread in West Africa, providing edible and medicinal products. A large sample of 1610 individuals from 84 populations, distributed across 12 countries in Western and Central Africa, were genotyped using 8 nuclear microsatellites...
October 31, 2018: Journal of Heredity
Dorothea Heimeier, Alana Alexander, Rebecca M Hamner, Franz Pichler, C Scott Baker
Strong balancing selection on the major histocompatibility complex (MHC) can lead to different patterns in gene frequencies and neutral genomic variation within species. We investigated diversity and geographic structure of MHC genes DQA and DQB, as well as their inferred functional haplotypes, from 2 regional populations (East and West Coast) of the endangered Hector's dolphin (Cephalorhynchus hectori hectori) and the critically endangered Māui dolphin (Cephalorhynchus hectori maui) (West Coast, North Island), and contrasted these results with patterns from neutral microsatellites...
October 31, 2018: Journal of Heredity
Andrea M Bernard, Vincent P Richards, Michael J Stanhope, Mahmood S Shivji
Recent advances in genome-scale sequencing technology have allowed the development of high resolution genetic markers for the study of nonmodel taxa. In particular, transcriptome sequencing has proven to be highly useful in generating genomic markers for use in population genetic studies, allowing for insight into species connectivity, as well as local adaptive processes as many transcriptome-derived markers are found within or associated with functional genes. Herein, we developed a set of 30 microsatellite markers from a heart transcriptome for the white shark (Carcharodon carcharias), a widely distributed and globally vulnerable marine predator...
October 31, 2018: Journal of Heredity
(no author information available yet)
No abstract text is available yet for this article.
October 31, 2018: Journal of Heredity
Gaëtan Richard, Olga V Titova, Ivan D Fedutin, Debbie Steel, Ilya G Meschersky, Marie Hautin, Alexander M Burdin, Erich Hoyt, Olga A Filatova, Jean-Luc Jung
Mitochondrial DNA (mtDNA) differences between humpback whales on different feeding grounds can reflect the cultural transmission of migration destinations over generations, and therefore represent one of the very few cases of gene-culture coevolution identified in the animal kingdom. In Russian Pacific waters, photo-identification (photo-ID) studies have shown minimal interchange between whales feeding off the Commander Islands and those feeding in the Karaginsky Gulf, regions that are separated by only 500 km and have previously been lumped together as a single Russian feeding ground...
October 31, 2018: Journal of Heredity
(no author information available yet)
No abstract text is available yet for this article.
October 31, 2018: Journal of Heredity
Olga A Filatova, Ekaterina A Borisova, Ilya G Meschersky, Maria D Logacheva, Nataliia V Kuzkina, Olga V Shpak, Phillip A Morin, Erich Hoyt
In the North Pacific, fish-eating R-type "resident" and mammal-eating T-type "transient" killer whales do not interbreed and differ in ecology and behavior. Full-length mitochondrial genomes (about 16.4 kbp) were sequenced and assembled for 12 R-type and 14 T-type killer whale samples from different areas of the western North Pacific. All R-type individuals had the same haplotype, previously described for R-type killer whales from both eastern and western North Pacific. However, haplotype diversity of R-type killer whales was much lower in the western North Pacific than in the Aleutian Islands and the eastern North Pacific...
October 31, 2018: Journal of Heredity
K Nicole White, Betsie B Rothermel, Kelly R Zamudio, Tracey D Tuberville
In many vertebrates, body size is an important driver of variation in male reproductive success. Larger, more fit individuals are more likely to dominate mating opportunities, skewing siring success and resulting in lower effective population sizes and genetic diversity. The mating system of the gopher tortoise (Gopherus polyphemus) has been characterized as both female-defense and scramble-competition polygyny. Mating systems are typically not fixed and can be influenced by factors such as population density, demographic structure, and environmental conditions; however, most populations will have a predominant strategy that results from local conditions...
October 31, 2018: Journal of Heredity
Robin S Waples, Kim T Scribner, Jennifer A Moore, Hope M Draheim, Dwayne Etter, Mark Boersen
The idealized concept of a population is integral to ecology, evolutionary biology, and natural resource management. To make analyses tractable, most models adopt simplifying assumptions, which almost inevitably are violated by real species in nature. Here, we focus on both demographic and genetic estimates of effective population size per generation (Ne), the effective number of breeders per year (Nb), and Wright's neighborhood size (NS) for black bears (Ursus americanus) that are continuously distributed in the northern lower peninsula of Michigan, United States...
October 31, 2018: Journal of Heredity
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