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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 non-model 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...
September 11, 2018: Journal of Heredity
(no author information available yet)
No abstract text is available yet for this article.
September 5, 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...
September 3, 2018: Journal of Heredity
Yolanda Guillén, Sònia Casillas, Alfredo Ruiz
Evolutionary rates for protein-coding genes are determined not only by natural selection but also by multiple genomic factors including mutation rates, recombination, gene expression levels and chromosomal location. To investigate the joint effects of different genomic determinants on protein evolution, we compared the coding sequences of 9,017 single copy orthologs between two cactophilic species from the Drosophila subgenus, Drosophila mojavensis and D. buzzatii, whose genomes have been previously sequenced...
August 17, 2018: Journal of Heredity
Esteban Hasson, Diego De Panis, Juan Hurtado, Julián Mensch
Host plant shifts in herbivorous insects often involve facing new environments that may speed up the evolution of oviposition behavior, performance related traits, morphology and, incidentally, reproductive isolation. In the genus Drosophila, cactophilic species of the repleta group include emblematic species in the study of the evolution of host plant utilization. The South American D. buzzatii and its sibling D. koepferae are a model system for the study of differential host plant use. Though these species exhibit a certain degree of niche overlap, the former breeds primarily on decaying cladodes of Opuntia cacti while the D...
August 10, 2018: Journal of Heredity
Antonio Fontdevila
No abstract text is available yet for this article.
August 10, 2018: Journal of Heredity
(no author information available yet)
No abstract text is available yet for this article.
August 2, 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...
July 20, 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...
July 19, 2018: Journal of Heredity
Amanda J Finger, Brian Mahardja, Kathleen M Fisch, Alyssa Benjamin, Joan Lindberg, Luke Ellison, Tewdros Ghebremariam, Tien-Chieh Hung, Bernie May
Genetic adaptation to captivity is a concern for threatened and endangered species held in conservation hatcheries. Here, we present evidence of genetic adaptation to captivity in a conservation hatchery for the endangered delta smelt (Fish Conservation and Culture Laboratory, University of California Davis; FCCL). The FCCL population is genetically managed with parentage analysis and the addition of wild fish each year. Molecular monitoring indicates little loss of genetic variation and low differentiation between the wild and conservation populations...
August 24, 2018: Journal of Heredity
Libby Natola, Theresa M Burg
The root of understanding speciation lies in determining the forces which drive it. In many closely-related species, including Sphyrapicus varius, S. nuchalis, and S. ruber, it is assumed that speciation occurred due to isolation in multiple Pleistocene refugia. We used genetic data from 457 samples at the control region (CR), cytochrome oxidase I (COI), and chromo-helicase DNA binding protein (CHD1Z) to examine range-wide population genetic structure and differentiation amongst these 3 species across each species' breeding range...
August 24, 2018: Journal of Heredity
Paola Modesto, Cristina Biolatti, Livio Favaro, Silvia Colussi, Simone Peletto, Sara Piga, Maria Vittoria Riina, Daniela Pessani, Egle Trincas, Valentina Isaja, Pier Luigi Acutis
Genealogical relationships among colony members, inbreeding status, and presence of hybrids are crucial data that can assist zoo curators in captive colony management and decision-making on relocation for reproduction. This study employed molecular markers to study a large colony (n = 56) of African Penguin hosted in an Italian biopark. A panel of 15 STRs (single tandem repeats) was selected, and genotype data were analyzed using COLONY software to determine parentage relationships and compare the existing studbook information to a pedigree built from genetic analyses...
August 24, 2018: Journal of Heredity
(no author information available yet)
No abstract text is available yet for this article.
August 24, 2018: Journal of Heredity
Joshua M Miller, Maud C Quinzin, Danielle L Edwards, Deren A R Eaton, Evelyn L Jensen, Michael A Russello, James P Gibbs, Washington Tapia, Danny Rueda, Adalgisa Caccone
Genome-wide assessments allow for fuller characterization of genetic diversity, finer-scale population delineation, and better detection of demographically significant units to guide conservation compared with those based on "traditional" markers. Galapagos giant tortoises (Chelonoidis spp.) have long provided a case study for how evolutionary genetics may be applied to advance species conservation. Ongoing efforts to bolster tortoise populations, which have declined by 90%, have been informed by analyses of mitochondrial DNA sequence and microsatellite genotypic data, but could benefit from genome-wide markers...
August 24, 2018: Journal of Heredity
Kim Scribner, Iyob Tsehaye, Travis Brenden, Wendylee Stott, Jeannette Kanefsky, James Bence
Recent assessments indicate the emergence of naturally produced lake trout (Salvelinus namaycush) recruitment throughout Lake Huron in the North American Laurentian Great Lakes (>50% of fish <7 years). Because naturally produced fish derived from different stocked hatchery strains are unmarked, managers cannot distinguish strains contributing to natural recruitment. We used 15 microsatellite loci to identify strains of naturally produced lake trout (N = 1567) collected in assessment fisheries during early (2002-2004) and late (2009-2012) sampling periods...
August 24, 2018: Journal of Heredity
Aimee Elizabeth Kessler, Malia A Santos, Ramona Flatz, Nyambayar Batbayar, Tseveenmyadag Natsagdorj, Dashnyam Batsuuri, Fyodor G Bidashko, Natsag Galbadrakh, Oleg Goroshko, Valery V Khrokov, Tuvshin Unenbat, Ivan I Vagner, Muyang Wang, Christopher Irwin Smith
The great bustard is the heaviest bird capable of flight and an iconic species of the Eurasian steppe. Populations of both currently recognized subspecies are highly fragmented and critically small in Asia. We used DNA sequence data from the mitochondrial cytochrome b gene and the mitochondrial control region to estimate the degree of mitochondrial differentiation and rates of female gene flow between the subspecies. We obtained genetic samples from 51 individuals of Otis tarda dybowskii representing multiple populations, including the first samples from Kazakhstan and Mongolia and samples from near the Altai Mountains, the proposed geographic divide between the subspecies, allowing for better characterization of the boundary between the 2 subspecies...
August 24, 2018: Journal of Heredity
Faisal Almathen, Haitham Elbir, Hussain Bahbahani, Joram Mwacharo, Olivier Hanotte
Pigmentation in mammals is primarily determined by the distribution of eumelanin and pheomelanin, the ratio of which is mostly controlled by the activity of melanocortin 1 receptor (MC1R) and agouti signaling protein (ASIP) genes. Using 91 animals from 10 Arabian camel populations, that included the 4 predominant coat color phenotypes observed in the dromedary (light brown, dark brown, black, and white), we investigated the effects of the MC1R and ASIP sequence variants and identified candidate polymorphisms associated with coat color variation...
August 24, 2018: Journal of Heredity
Evelyn L Jensen, Joshua M Miller, Danielle L Edwards, Ryan C Garrick, Washington Tapia, Adalgisa Caccone, Michael A Russello
Empirical population genetic studies generally rely on sampling subsets of the population(s) of interest and of the nuclear or organellar genome targeted, assuming each is representative of the whole. Violations of these assumptions may impact population-level parameter estimation and lead to spurious inferences. Here, we used targeted capture to sequence the full mitochondrial genome from 123 individuals of the Galapagos giant tortoise endemic to Pinzón Island (Chelonoidis duncanensis) sampled at 2 time points pre- and postbottleneck (circa 1906 and 2014) to explicitly assess differences in diversity estimates and demographic reconstructions based on subsets of the mitochondrial genome versus the full sequences and to evaluate potential biases associated with diversity estimates and demographic reconstructions from postbottlenecked samples alone...
August 24, 2018: Journal of Heredity
Joshua M Miller, Maud C Quinzin, Elizabeth H Scheibe, Claudio Ciofi, Fredy Villalva, Washington Tapia, Adalgisa Caccone
An aim of many captive breeding programs is to increase population sizes for reintroduction and establishment of self-sustaining wild populations. Genetic analyses play a critical role in these programs: monitoring genetic variation, identifying the origin of individuals, and assigning parentage to track family sizes. Here, we use genetic pedigree analyses to examine 3 seasons of a pilot breeding program for the Floreana island Galapagos giant tortoise, C. niger, that had been declared extinct for ~150 years until individuals with mixed ancestry were recently discovered...
August 24, 2018: Journal of Heredity
Martha J Nelson-Flower, Ryan R Germain, Elizabeth A MacDougall-Shackleton, Sabrina S Taylor, Peter Arcese
Variation in immune gene sequences is known to influence resistance to infectious diseases and parasites, and hence survival and mate choice, across animal taxa. Toll-like receptors (TLRs) comprise one essential gene family in the vertebrate innate immune system and recognize evolutionarily conserved structures from all major microorganism classes. However, the causes and consequences of TLR variation in passerine birds remain largely unexplored. We examined 7 TLR genes in song sparrows (Melospiza melodia), a species that is studied across North America...
June 27, 2018: Journal of Heredity
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