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Journal of Heredity

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https://www.readbyqxmd.com/read/28637254/phylogeography-of-lionfishes-pterois-indicate-taxonomic-over-splitting-and-hybrid-origin-of-the-invasive-pterois-volitans
#1
Christie L Wilcox, Hiroyuki Motomura, Mizuki Matsunuma, Brian W Bowen
The lionfish is an iconic marine fish, and recently renowned for a disastrous introduction into the West Atlantic. Genetic surveys of the putative invaders (Pterois volitans and P. miles) in their natural Indo-Pacific range can illuminate both topics. Previous research indicated that P. volitans and P. miles are sister species that hybridize in the invasive range, but hybridization in the native range is unknown. Here we apply mtDNA COI and two nuclear introns (S7 RP1 and Gpd2) from 229 lionfish including the two invaders and two closely-related taxa (44 P...
June 16, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28605534/selection-on-mhc-in-a-context-of-historical-demographic-change-in-two-closely-distributed-species-of-tuco-tucos-ctenomys-australis-and-c-talarum
#2
Ana Paula Cutrera, Matías Sebastián Mora
Selection necessarily acts within the same current and historical demographic framework as neutral evolutionary processes, and the outcome of the interplay between these forces may vary according to their relative strength. In this study, we compare the variation at an MHC locus (DRB exon 2), typically subject to strong diversifying selection, and mitochondrial diversity (D-loop) across populations encompassing the entire distribution of two species of South American subterranean rodents: Ctenomys australis and C...
June 9, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28595313/the-genome-sizes-of-ostracod-crustaceans-correlate-with-body-size-and-evolutionary-history-but-not-environment
#3
Nicholas W Jeffery, Emily A Ellis, Todd H Oakley, T Ryan Gregory
Within animals a positive correlation between genome size and body size has been detected in several taxa but not in others, such that it remains unknown how pervasive this pattern may be. Here we provide another example of a positive relationship in a group of crustaceans whose genome sizes have not previously been investigated. We analyze genome size estimates for 46 species across the two most diverse orders of Class Ostracoda, commonly known as seed shrimps, including 29 new estimates made using Feulgen image analysis densitometry and flow cytometry...
June 8, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28541432/corrigendum
#4
(no author information available yet)
No abstract text is available yet for this article.
May 24, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28505369/identification-of-an-early-male-killing-agent-in-the-oriental-tea-tortrix-homona-magnanima
#5
Yusuke Tsugeno, Hironori Koyama, Takumi Takamatsu, Madoka Nakai, Yasuhisa Kunimi, Maki N Inoue
Arthropods are frequently infected with inherited symbionts, which sometimes confer fitness benefits on female hosts or manipulate host reproduction. Early male killing, in which infected males die during embryogenesis, is induced by some bacteria, such as Wolbachia and Spiroplasma. A female-biased sex ratio has been found in Homona magnanima, collected from a tea plantation in Japan. Here, we examined the male-killing trait in H. magnanima and identified the agent that induces early male killing. The sex-ratio distortion (SR) strain produced only females and no males, and its egg hatch rate was significantly lower than that of the normal (N) strain...
May 15, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28499014/captive-ancestry-upwardly-biases-estimates-of-relative-reproductive-success
#6
Janna R Willoughby, Mark R Christie
Supplementation programs, which release captive-born individuals into the wild, are commonly used to demographically bolster declining populations. In order to evaluate the effectiveness of these programs, the reproductive success of captive-born individuals released into the wild is often compared to the reproductive success of wild-born individuals in the recipient population (relative reproductive success, RRS). However, if there are heritable reductions in fitness associated with captive breeding, gene flow from captive-born individuals into the wild population can reduce the fitness of the wild population...
May 12, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28486592/constraints-on-the-fst-heterozygosity-outlier-approach
#7
Sarah P Flanagan, Adam G Jones
The FST-heterozygosity outlier approach has been a popular method for identifying loci under balancing and positive selection since Beaumont and Nichols first proposed it in 1996 and recommended its use for studies sampling a large number of independent populations (at least 10). Since then, their program FDIST2 and a user-friendly program optimized for large datasets, LOSITAN, have been used widely in the population genetics literature, often without the requisite number of samples. We observed empirical datasets whose distributions could not be reconciled with the confidence intervals generated by the null coalescent island model...
May 9, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28482087/effects-of-gene-action-marker-density-and-time-since-selection-on-the-performance-of-landscape-genomic-scans-of-local-adaptation
#8
Jeremy B Yoder, Peter Tiffin
Genomic "scans" to identify loci that contribute to local adaptation are becoming increasingly common. Many methods used for such studies have assumed that local adaptation is created by loci experiencing antagonistic pleiotropy and that the selected locus itself is assayed, and few consider how signals of selection change through time. However, most empirical data sets have marker density too low to assume that a selected locus itself is assayed, researchers seldom know when selection was first imposed, and many locally adapted loci likely experience not antagonistic pleiotropy but conditional neutrality...
May 8, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28482023/understanding-the-genomic-basis-of-adaptive-response-to-variable-osmotic-niches-in-freshwater-prawns-a-comparative-intraspecific-rna-seq-analysis-of-macrobrachium-australiense
#9
Azam Moshtaghi, Md Lifat Rahi, Peter B Mather, David A Hurwood
Understanding the molecular basis of adaptive response to variable environmental conditions is a central goal of evolutionary biology. Here we sought to identify potential outlier SNPs (single nucleotide polymorphisms) in three wild populations of a freshwater prawn (Macrobrachium australiense) that are exposed to differing osmotic niches by using a comparative transcriptomics approach. De novo assembly of approximately 542 million (75 nt) pair end reads collected from 10 individuals revealed 123,396 longer contigs/transcripts of variable length, that showed 97...
May 6, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28482006/predictability-and-parallelism-of-multi-trait-adaptation
#10
Randall Brian Langerhans
Environments shape the traits of organisms. Environmental variation may rarely alter selection on only a few traits, but instead precipitate wholesale changes of the multidimensional selective regime-many traits might experience divergent selection across divergent environments. Such changes in selection can elicit multifarious evolution. How predictable (from theory) and how parallel (consistent occurrences) is multi-trait divergence across replicated environments? Here, I address this question using the post-Pleistocene radiation of Bahamas mosquitofish (Gambusia hubbsi) inhabiting blue holes on Andros Island...
May 6, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28498961/range-wide-snow-leopard-phylogeography-supports-three-subspecies
#11
Jan E Janecka, Jan E Janecka, Zhang Yu-Guang, Li Di-Qiang, Bariushaa Munkhtsog, Munkhtsog Bayaraa, Naranbaatar Galsandorj, Tshewang R Wangchuk, Dibesh Karmacharya, Thomas McCarthy, Juan Li, Lu Zhi, Kubanychbek Zhumabai Uulu, Ajay Gaur, Satish Kumar, B Kesav Kumar, Shafqat Hussain, Ghulam Muhammad, Matthew Jevit, Charlotte Hacker, Pamela Burger, Claudia Wultsch, Mary J Janecka, Kristofer Helgen, William J Murphy, Rodney Jackson
The snow leopard, Panthera uncia, is an elusive high-altitude specialist that inhabits vast, inaccessible habitat across Asia. We conducted the first range-wide genetic assessment of snow leopards based on noninvasive scat surveys. Thirty-three microsatellites were genotyped and a total of 683-bp of mitochondrial DNA sequenced in 70 individuals. Snow leopards exhibited low genetic diversity at microsatellites (AN = 5.8, HO = 0.433, HE = 0.568), virtually no mtDNA variation, and underwent a bottleneck in the Holocene (~8,000 years ago) coinciding with increased temperatures, precipitation, and upward treeline shift in the Tibetan Plateau...
May 4, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28460111/genetic-variation-for-mitochondrial-function-in-the-new-zealand-freshwater-snail-potamopyrgus-antipodarum
#12
Joel Sharbrough, Jennifer L Cruise, Megan Beetch, Nicole M Enright, Maurine Neiman
The proteins responsible for mitochondrial function are encoded by two different genomes with distinct inheritance regimes, rendering rigorous inference of genotype-phenotype connections intractable for all but a few model systems. Asexual organisms provide a powerful means to address these challenges because offspring produced without recombination inherit both nuclear and mitochondrial genomes from a single parent. As such, these offspring inherit mitonuclear genotypes that are identical to the mitonuclear genotypes of their parents and siblings and different from those of other asexual lineages...
April 29, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28459986/color-biased-dispersal-inferred-by-fine-scale-genetic-spatial-autocorrelation-in-a-color-polymorphic-salamander
#13
Alexa H Grant, Eric B Liebgold
Behavioral traits can be influenced by predation rates of color morphs, potentially leading to reduced boldness or increased escape behaviors in one color morph. The red-backed salamander, Plethodon cinereus, is a small terrestrial salamander whose color morphs have different diets and select different microhabitats, but little is known about potential differences in dispersal behaviors. We used fine-scale genetic spatial autocorrelation to examine 122 P. cinereus in a color-polymorphic population at ten microsatellite loci in order to generate estimates of spatial genetic structure for each color morph...
April 29, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28453641/phenotypic-and-genetic-analysis-of-the-leopard-complex-spotting-in-noriker-horses
#14
Thomas Druml, Gertrud Grilz-Seger, Markus Neuditschko, Barbara Neuhauser, Gottfried Brem
Genetic analyses of coat colors are frequently restricted to subjectively categorized phenotype information. The aim of this study was to develop a method to numerically quantify the variability of leopard complex spotting phenotypes introducing tools from image analysis. Generalized Procrustes Analysis eliminates systematic errors due to imaging process. The binarization of normalised images and the application of Principal Component Analysis on the derived pixel matrices, transform pixel information into numerical data space...
April 27, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28498992/reproductive-strategy-of-the-polyploid-species-varronia-curassavica-jacq-in-restinga-environment
#15
Marcia Patricia Hoeltgebaum, Diana Marcela Morales Londoño, Ana Paula Lando, Maurício Sedrez Dos Reis
This study aimed to elucidate the breeding strategies of Varronia curassavica, an important medicinal species associated with Brazilian restinga. This was accomplished by combining phenological and genetic data. Every 2 weeks over a period of 2 years, we measured flowering and fruiting phenology to evaluate the activity and intensity of phenophases (n = 60). We evaluated the mating system, pollen ovule ratio and genotypes from progeny and mother plants using 8 nuclear microsatellite loci. We observed flowering and fruiting of V...
June 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28498991/population-differentiation-in-common-walnut-juglans-regia-l-across-major-parts-of-its-native-range-insights-from-molecular-and-morphometric-data
#16
Wladimir Roor, Heino Konrad, Davletbek Mamadjanov, Thomas Geburek
Juglans regia is an economically highly important species for fruit and wood production in the warm temperate and subtropical zones of the Northern Hemisphere. Besides the natural influence of climatic and geomorphological barriers, its genetic structure has been strongly modified by humans and the population history is still unclear. For this reason, we investigated mainly natural walnut populations across the Eurasian continent on a molecular (44 populations, 581 trees) and morphometric level (23 populations, 1391 ripe nuts)...
June 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28498990/genetic-kinship-analyses-reveal-that-gray-s-beaked-whales-strand-in-unrelated-groups
#17
Selina Patel, Kirsten F Thompson, Anna W Santure, Rochelle Constantine, Craig D Millar
Some marine mammals are so rarely seen that their life history and social structure remain a mystery. Around New Zealand, Gray's beaked whales (Mesoplodon grayi) are almost never seen alive, yet they are a commonly stranded species. Gray's are unique among the beaked whales in that they frequently strand in groups, providing an opportunity to investigate their social organization. We examined group composition and genetic kinship in 113 Gray's beaked whales with samples collected over a 20-year period. Fifty-six individuals stranded in 19 groups (2 or more individuals), and 57 whales stranded individually...
June 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28498989/determination-of-the-genetic-architecture-underlying-short-wavelength-sensitivity-in-lake-malawi-cichlids
#18
Sri Pratima Nandamuri, Brian E Dalton, Karen L Carleton
African cichlids are an exemplary system to study organismal diversity and rapid speciation. Species differ in external morphology including jaw shape and body coloration, but also differ in sensory systems including vision. All cichlids have 7 cone opsin genes with species differing broadly in which opsins are expressed. The differential opsin expression results in closely related species with substantial differences in spectral sensitivity of their photoreceptors. In this work, we take a first step in determining the genetic basis of opsin expression in cichlids...
June 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28498988/complementary-roles-of-phenotype-and-genotype-in-subspecies-delimitation
#19
Michael A Patten, J V Remsen
No abstract text is available yet for this article.
June 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28498987/genetic-structure-and-phylogeography-of-the-leopard-cat-prionailurus-bengalensis-inferred-from-mitochondrial-genomes
#20
Riddhi P Patel, Saskia Wutke, Dorina Lenz, Shomita Mukherjee, Uma Ramakrishnan, Géraldine Veron, Jörns Fickel, Andreas Wilting, Daniel W Förster
The Leopard cat Prionailurus bengalensis is a habitat generalist that is widely distributed across Southeast Asia. Based on morphological traits, this species has been subdivided into 12 subspecies. Thus far, there have been few molecular studies investigating intraspecific variation, and those had been limited in geographic scope. For this reason, we aimed to study the genetic structure and evolutionary history of this species across its very large distribution range in Asia. We employed both PCR-based (short mtDNA fragments, 94 samples) and high throughput sequencing based methods (whole mitochondrial genomes, 52 samples) on archival, noninvasively collected and fresh samples to investigate the distribution of intraspecific genetic variation...
June 1, 2017: Journal of Heredity
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