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Journal of Heredity

Akitsugu Konno, Miho Inoue-Murayama, Shinji Yabuta, Akiko Tonoike, Miho Nagasawa, Kazutaka Mogi, Takefumi Kikusui
Drug detection dogs can be trained to locate various prohibited drugs with targeted odors, and they play an important role in the interdiction of drug smuggling in human society. Recent studies provide the interesting hypothesis that the oxytocin system serves as a biological basis for co-evolution between dogs and humans. Here, we offer the new possibility that genetic variation of the canine oxytocin receptor (OXTR) gene may regulate the success of a dog's training to become a drug detection dog. A total of 340 Labrador Retriever dogs that were trained to be drug detection dogs in Japan were analyzed...
March 10, 2018: Journal of Heredity
Hernando Rodríguez-Correa, Ken Oyama, Mauricio Quesada, Eric J Fuchs, Antonio González-Rodríguez
Lower Central America is an important area to study recent population history and diversification of Neotropical species due to its complex and dynamic geology and climate. Phylogeographic studies in this region are few in comparison with other regions and even less for tree species. The aim of the present study was to characterize the phylogeographic structure in two partially co-distributed endemic oak species (Quercus costaricensis and Q. bumelioides) of the Costa Rican mountains using chloroplast short sequence repeats (cpSSRs), and to test for the effect of geological and palaeoclimatic processes on their population history...
March 2, 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 three 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...
February 27, 2018: Journal of Heredity
Matthijs P van den Burg, Patrick G Meirmans, Tim van Wagensveld, Bart Kluskens, Hannah Madden, Mark E Welch, Johannes A J Breeuwer
The Lesser Antillean Iguana (Iguana delicatissima) is an endangered species threatened by habitat loss and hybridization with non-native Green Iguanas (Iguana iguana). Iguanadelicatissima has been extirpated on several islands, and the Green Iguana has invaded most islands with extant populations. Information is essential to protect this species from extinction. We collected data on 293 iguanas including 17 juveniles from St. Eustasius, one of the few remaining I. delicatissima strongholds. Genetic data was leveraged to test for hybridization presence with the Green Iguana using both mitochondrial and nuclear genes, including 16 microsatellite loci...
February 19, 2018: Journal of Heredity
William J Gammerdinger, Matthew A Conte, Benjamin A Sandkam, Angelika Ziegelbecker, Stephan Koblmüller, Thomas D Kocher
African cichlids are well known for their adaptive radiations, but it is now apparent that they also harbor an extraordinary diversity of sex chromosome systems. In this study, we sequenced pools of males and females from species in three different genera of cichlids from Lake Tanganyika. We then searched for regions that were differentiated following the patterns expected for sex chromosomes. We report two novel sex chromosomes systems, an XY system on LG19 in Tropheus sp. 'black' and a ZW system on LG7 in Hemibates stenosoma...
February 10, 2018: Journal of Heredity
Roozbeh Behrooz, Mohammad Kaboli, Véronique Arnal, Masoud Nazarizadeh, Atefeh Asadi, Amin Salmanian, Mohsen Ahmadi, Claudine Montgelard
Northern and western mountains of Iran are among the most important biodiversity and endemism hot spots for reptiles in the Middle East. Among herpetofauna, the montivipers represent an emblematic and fragmented endemic group for which estimating their level of genetic differentiation and defining conservation priorities is urgently needed. Here, we present the most comprehensive phylogenetic study on the Montivipera raddei species group comprising all five known taxa, among which three are endemic to Iran...
February 1, 2018: Journal of Heredity
Patrick G Meirmans, Shenglin Liu, Peter H van Tienderen
Though polyploidy is an important aspect of the evolutionary genetics of both plants and animals, the development of population genetic theory of polyploids has seriously lagged behind that of diploids. This is unfortunate since the analysis of polyploid genetic data -and the interpretation of the results- requires even more scrutiny than with diploid data. This is because of several polyploidy-specific complications in segregation and genotyping such as tetrasomy, double reduction and missing dosage information...
January 27, 2018: Journal of Heredity
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
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
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
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
Amy Zhang, Tomoko Y Steen
The Chernobyl and Fukushima nuclear accidents have called forth a growing body of research on their biological aftermaths. A variety of wild organisms, including primates, birds, fish, insects, and worms are being studied in the affected areas, with emerging morphological, physiological, and genetic aberrations ascribed to ionizing radiation. Despite the effort in surveying Chernobyl and Fukushima wildlife, little is known about the microorganisms associated with these radiation-contaminated animals. The microbiota, especially the gut commensal, plays an important role in shaping the metabolic reservoir and immune system of the host, and is sensitive to a wide array of environmental factors, including ionizing radiation...
February 14, 2018: Journal of Heredity
(no author information available yet)
No abstract text is available yet for this article.
December 16, 2017: Journal of Heredity
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
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
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
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
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
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
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
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