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Journal of Heredity

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https://www.readbyqxmd.com/read/29346589/urban-evolutionary-ecology-and-the-potential-benefits-of-implementing-genomics
#1
Christopher J Schell
Urban habitats are quickly becoming exceptional models to address adaptation under rapid environmental change, given the expansive temporal and spatial scales with which anthropogenic landscape conversion occurs. Urban ecologists in the last 10-15 years have done an extraordinary job of highlighting phenotypic patterns that correspond with urban living, as well as delineating urban population structure using traditional genetic markers. The underpinning genetic mechanisms that govern those phenotypic patterns, however, are less well established...
January 13, 2018: Journal of Heredity
https://www.readbyqxmd.com/read/29329459/using-pool-seq-to-search-for-genomic-regions-affected-by-hybrid-inviability-in-the-copepod-t-californicus
#2
Thiago G Lima, Christopher S Willett
The formation of reproductive barriers between allopatric populations involves the accumulation of incompatibilities that lead to intrinsic postzygotic isolation. The evolution of these incompatibilities is usually explained by the Dobzhansky-Muller model, where epistatic interactions that arise within the diverging populations, lead to deleterious interactions when they come together in a hybrid genome. These incompatibilities can lead to hybrid inviability, killing individuals with certain genotypic combinations, and causing the population's allele frequency to deviate from Mendelian expectations...
January 10, 2018: Journal of Heredity
https://www.readbyqxmd.com/read/29294044/population-networks-associated-with-runs-of-homozygosity-reveal-new-insights-into-the-breeding-history-of-the-haflinger-horse
#3
Thomas Druml, Markus Neuditschko, Gertrud Grilz-Seger, Michaela Horna, Anne Ricard, Matjaz Mesaric, Marco Cotman, Hubert Pausch, Gottfried Brem
Within the scope of current genetic diversity analyses, population structure and homozygosity measures are independently analysed and interpreted. To enhance analytical power, we combined the visualization of recently described high-resolution population networks with runs of homozygosity (ROH). In this study, we demonstrate that this approach enabled us to reveal important aspects of the breeding history of the Haflinger horse. We collected high-density genotype information of 531 horses originating from seven populations which were involved in the formation of the Haflinger, namely 32 Italian Haflingers, 78 Austrian Haflingers, 190 Noriker, 23 Bosnian Mountain Horses, 20 Gidran, 33 Shagya Arabians, and 155 Purebred Arabians...
December 26, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/29294045/xx-xy-sex-chromosomes-in-the-south-american-dwarf-gecko-gonatodes-humeralis
#4
Tony Gamble, Erin McKenna, Wyatt Meyer, Stuart V Nielsen, Brendan J Pinto, Daniel P Scantlebury, Timothy E Higham
Sex-specific genetic markers identified using restriction site-associated DNA sequencing, or RADseq, permits the recognition of a species' sex chromosome system in cases where standard cytogenetic methods fail. Thus, species with male-specific RAD markers have an XX/XY sex chromosome system (male heterogamety) while species with female-specific RAD markers have a ZZ/ZW sex chromosome (female heterogamety). Here we use RADseq data from five male and five female South American dwarf geckos (Gonatodes humeralis) to identify an XX/XY sex chromosome system...
December 23, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/29267969/erratum-to-genomic-displacement-and-shift-of-the-hybrid-zone-in-the-japanese-fire-bellied-newt
#5
(no author information available yet)
No abstract text is available yet for this article.
December 16, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/29240932/homogenization-of-populations-in-the-wildflower-texas-bluebonnet-lupinus-texensis
#6
Kathryn G Turner, Daisie I Huang, Quentin C B Cronk, Loren H Rieseberg
Wildflower seeds are routinely spread along highways and thoroughfares throughout North America as part of federal beautification policy, but the genetic effect of the introduction of these cultivated populations on wild populations of the same species is unknown. Interbreeding may occur between these seeded and wild populations, resulting in several possible outcomes. Here we sample 187 individuals in 12 matched pairs of neighboring wild and seeded populations of the Texas bluebonnet (Lupinus texensis), a species popular in commercially available wildflower seed mixes used by both the Texas Department of Transportation and the public...
December 12, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/29228367/how-social-structure-drives-the-population-dynamics-of-the-common-vampire-bat-desmodus-rotundus-phyllostomidae
#7
Maïlis Huguin, Nidia Arechiga-Ceballos, Marguerite Delaval, Amandine Guidez, Isaï Jorge de Castro, Vincent Lacoste, Arielle Salmier, Alvaro Aguilar Setien, Claudia Regina Silva, Anne Lavergne, Benoit de Thoisy
Social systems are major drivers of population structure and gene flow, with important effects on dynamics and dispersal of associated populations of parasites. Among bats, the common vampire bat (Desmodus rotundus) has likely one of the most complex social structure. Using autosomal and mitochondrial markers on vampires from Mexico, French Guiana and North Brazil, from both roosting and foraging areas, we observed an isolation by distance at the wider scale and lower but significant differentiation between closer populations (<50 km)...
December 8, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/29206981/variable-molecular-markers-for-the-order-mantophasmatodea-insecta
#8
Serena E Dool, Sven Künzel, Martin Haase, Mike D Picker, Monika J B Eberhard
The recently discovered insect order Mantophasmatodea currently comprises 19 Southern African species. These mainly occur in allopatry, have high levels of colour polymorphism and communicate via species- and gender-specific vibratory signals. High levels of interspecific morphological conservatism mean that cryptic species are likely to be uncovered. These aspects of Mantophasmatodean biology make them an ideal group in which to investigate population divergence due to habitat-specific adaptation, sexual selection and potentially sensory speciation...
December 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/29206927/conservation-genetics-of-two-highly-endangered-and-poorly-known-species-of-zamia-zamiaceae-cycadales-in-colombia
#9
Arturo Aristizábal, Dino J Tuberquia, María José Sanín
Genetic diversity is key in providing the variation needed to face stochastic change. Increased habitat loss alters population size and dynamics posing serious threats to the conservation of wild species. Colombia has undergone massive deforestation over the last century, but harbours extraordinary high species diversity of genus Zamia (Cycadales), however most of the species are under threat. In this study we targeted the largest accessible remaining populations of two closely related species growing as endemics in the Magdalena Valley region of Colombia...
December 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/29186474/whole-mitochondrial-genomic-and-y-chromosomal-phylogenies-of-burmese-long-tailed-macaque-macaca-fascicularis-aurea-suggest-ancient-hybridization-between-fascicularis-and-sinica-species-groups
#10
Kazunari Matsudaira, Yuzuru Hamada, Srichan Bunlungsup, Takafumi Ishida, Aye Mi San, Suchinda Malaivijitnond
Macaca fascicularis aurea (Burmese long-tailed macaque) is 1 of the 10 subspecies of M. fascicularis. Despite having few morphological differences from other subspecies, a recent phylogeographic study showed that M. f. aurea is clearly distinct genetically from M. f. fascicularis (common long-tailed macaque) and suggests that M. f. aurea experienced a disparate evolutionary pathway versus other subspecies. To construct a detailed evolutionary history of M. f. aurea and its relationships with other macaque species, we performed phylogenetic analyses and divergence time estimation of whole mitochondrial genomes (2 M...
November 23, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/29165594/revisiting-fis-fst-wahlund-effects-and-null-alleles
#11
Thierry De Meeûs
Null alleles and Wahlund effects are well known causes of heterozygote deficits in empirical population genetics studies as compared to Hardy-Weinberg genotypic expectations. Some authors have theoretically studied the relationship of Wright's FIS computed from subsamples displaying a Wahlund effect and FST before the Wahlund effect, as can occasionally be obtained from populations of long-lived organisms. In the two subsample case, a positive relationship between these two parameters across loci would represent a signature of Wahlund effects...
November 20, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/29156051/natural-and-anthropogenic-influences-on-the-mating-system-of-the-common-morning-glory
#12
Diego F Alvarado-Serrano, Shu-Mei Chang, Regina S Baucom
Evolutionary biologists remain puzzled by the often dramatic variation of mating strategies within single species. Of particular interest is the extent to which environmental conditions shape patterns of variation of mating system components within mixed mating species, and how widespread anthropogenic manipulations may influence these associations. Here, we address this question in the common morning glory (Ipomoea purpurea) by combining a dataset of floral traits, estimates of the mating system, and relevant environmental factors compiled for 22 populations of this species distributed along a wide range of environments from the Southeast and midwest USA...
November 16, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/29149308/paternity-analysis-of-wood-turtles-glyptemys-insculpta-reveals-complex-mating-patterns
#13
Cindy Bouchard, Nathalie Tessier, François-Joseph Lapointe
Mating system characteristics are of great importance as they may influence male and female reproductive success and reproductive isolation. The wood turtle (Glyptemys insculpta) is a terrestrial freshwater species listed as endangered by the International Union for Conservation of Nature. Considering its conservation status and the paucity of information currently available on parentage relationship for the species, we performed a microsatellite analysis to study the mating system of wood turtles in the Shawinigan River (Québec)...
November 15, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/29140441/the-complete-phylogeny-of-pangolins-scaling-up-resources-for-the-molecular-tracing-of-the-most-trafficked-mammals-on-earth
#14
Philippe Gaubert, Agostinho Antunes, Hao Meng, Lin Miao, Stéphane Peigné, Fabienne Justy, Flobert Njiokou, Sylvain Dufour, Emmanuel Danquah, Jayanthi Alahakoon, Erik Verheyen, William T Stanley, Stephen J O'Brien, Warren E Johnson, Shu-Jin Luo
Pangolins, considered the most-trafficked mammals on Earth, are rapidly heading to extinction. Eight extant species of these African and Asian scale-bodied anteaters are commonly recognized, but their evolutionary relationships remain largely unexplored. Here we present the most comprehensive phylogenetic assessment of pangolins, based on genetic variation of complete mitogenomes and nine nuclear genes. We confirm deep divergence among Asian and African pangolins occurring not later than the Oligocene-Miocene boundary ca...
November 13, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/29228349/genome-wide-snps-identify-limits-to-connectivity-in-the-extreme-freshwater-disperser-spangled-perch-leiopotherapon-unicolor-terapontidae
#15
Daniel J Schmidt, Joel A Huey, Jane M Hughes
The utility of restriction-site associated DNA sequencing (RADseq) to resolve fine-scale population structure was tested on an abundant and vagile fish species in a tropical river. Australia's most widespread freshwater fish, the "extreme disperser" Leiopotherapon unicolor was sampled from six locations in an unregulated system, the Daly River in Australia's Northern Territory. Despite an expectation of high connectivity based on life history knowledge of this species derived from arid zone habitats, L. unicolor was not a panmictic population in the tropical lower Daly...
November 11, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/29136171/mating-system-and-effective-population-size-of-the-overexploited-neotropical-tree-myroxylon-peruiferum-l-f-and-their-impact-on-seedling-production
#16
Ellida de Aguiar Silvestre, Kaiser Dias Schwarcz, Carolina Grando, Jaqueline Bueno de Campos, Patricia Sanae Sujii, Evandro Vagner Tambarussi, Camila Menezes Trindade Macrini, José Baldin Pinheiro, Pedro Henrique Santin Brancalion, Maria Imaculada Zucchi
The reproductive system of a tree species has substantial impact on genetic diversity and structure within and among natural populations. Such information, should be considered when planning tree planting for forest restoration. Here, we describe the mating system and genetic diversity of an overexploited Neotropical tree, Myroxylon peruiferum L.f. (Fabaceae) sampled from a forest remnant (10 seed trees and 200 seeds) and assess whether the effective population size of nursery-grown seedlings (148 seedlings) is sufficient to prevent inbreeding depression in reintroduced populations...
November 10, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/29136178/identification-of-genomic-regions-associated-with-sex-in-pacific-halibut
#17
Daniel P Drinan, Timothy Loher, Lorenz Hauser
Understanding and identifying the genetic mechanisms responsible for sex-determination are important for species management, particularly in exploited fishes where sex biased harvest could have implications on population dynamics and long-term persistence. The Pacific halibut (Hippoglossus stenolepis) supports important fisheries in the North Pacific Ocean. The proportion of each sex in the annual harvest is currently estimated using growth curves, but genetic techniques may provide a more accurate method. We used restriction-site associated DNA (RAD) sequencing to identify RAD-tags that were linked to genetic sex, based on differentiation (FST) between the sexes...
November 9, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/29136164/habitat-heterogeneity-host-population-structure-and-parasite-local-adaptation
#18
Curtis M Lively
Reciprocal-transplant experiments have proven to be a powerful tool for detecting local adaptation (LA). More recently, reciprocal cross-inoculation experiments have been used to evaluate adaptation by parasites to their local host populations. These experiments are conceptually similar to reciprocal-transplant experiments, except that the "environment" (the host population) may have evolved in response to changes in the parasite population. Here, I use analytical tools and computer simulations to determine when parasites would be expected to be more infective to their local host populations than to allopatric host populations...
November 9, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/29126208/influence-of-range-position-on-locally-adaptive-gene-environment-associations-in-populus-flowering-time-genes
#19
Stephen R Keller, Vikram E Chhatre, Matthew C Fitzpatrick
Local adaptation is pervasive in forest trees, which are characterized by large effective population sizes spanning broad climatic gradients. In addition to having relatively contiguous populations, many species also form isolated populations along the rear edge of their range. These rear-edge populations may contain unique adaptive diversity reflecting a history of selection in marginal environments. Thus, discovering genomic regions conferring local adaptation in rear edge populations is a key priority for landscape genomics to ensure conservation of genetic resources under climate change...
November 8, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/29126134/the-study-of-local-adaptation-a-thriving-field-of-research
#20
Lynda F Delph
No abstract text is available yet for this article.
November 8, 2017: Journal of Heredity
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