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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/28498992/reproductive-strategy-of-the-polyploid-species-varronia-curassavica-jacq-in-restinga-environment
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
https://www.readbyqxmd.com/read/28444202/application-of-genomic-estimation-methods-of-inbreeding-and-population-structure-in-an-arabian-horse-herd
#11
Mohammed A Al Abri, Uta König von Borstel, Veronique Strecker, Samantha A Brooks
Horse breeders rely heavily on pedigrees for identification of ancestry in breeding stock. Inaccurate pedigrees may erroneously assign individuals to false lineages or breed memberships resulting in wrong estimates of inbreeding and coancestry. Moreover, discrepancies in pedigree records can lead breeders seeking to limit inbreeding into making misguided breeding decisions. Genome-wide SNPs provide a quantitative tool to aid in the resolution of lineage assignments and the calculation of genomic measures of relatedness...
June 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28407107/phylogeography-of-sophora-moorcroftiana-supports-wu-s-hypothesis-on-the-origin-of-tibetan-alpine-flora
#12
Shanmei Cheng, La Qiong, Fan Lu, Takahiro Yonezawa, Ganqiang Yin, Zhiping Song, Yuguo Wang, Ji Yang, Wenju Zhang
Wu hypothesized that the Tibetan flora originated mostly from the paleotropical Tertiary flora in the Hengduan Mountains by adapting to the cold and arid environments associated with the strong uplift of the Qinghai-Tibet Plateau (QTP). Here, we combine the phylogeographic history of Sophora moorcroftiana with that of Sophora davidii to explore the speciation of S. moorcroftiana to test this hypothesis. We collected 151 individuals from 17 populations and sequenced 2 chloroplast fragments and the internal transcribed spacer of rDNA...
June 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28407082/genes-and-group-membership-predict-gidgee-skink-egernia-stokesii-reproductive-pairs
#13
Sarah K Pearson, Stephanie S Godfrey, Nina Schwensow, C Michael Bull, Michael G Gardner
Due to their role in mate choice, disease resistance and kin recognition, genes of the major histocompatibility complex (MHC) are good candidates for investigating genetic-based mate choice. MHC-based mate choice is context dependent and influenced by many factors including social structure. Social structure diversity makes the Egernia group of lizards suitable for comparative studies of MHC-based mate choice. We investigated mate choice in the gidgee skink (Egernia stokesii), a lizard that exhibits high levels of social group and spatial stability...
June 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28379490/dambe6-new-tools-for-microbial-genomics-phylogenetics-and-molecular-evolution
#14
Xuhua Xia
DAMBE is a comprehensive software workbench for data analysis in molecular biology, phylogenetics, and evolution. Several important new functions have been added since version 5 of DAMBE: 1) comprehensive genomic profiling of translation initiation efficiency of different genes in different prokaryotic species, 2) a new index of translation elongation (ITE) that takes into account both tRNA-mediated selection and background mutation on codon-anticodon adaptation, 3) a new and accurate phylogenetic approach based on pairwise alignment only, which is useful for highly divergent sequences from which a reliable multiple sequence alignment is difficult to obtain...
June 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28369406/genetic-diversity-and-population-structure-of-varronia-curassavica-a-medicinal-polyploid-species-in-a-threatened-ecosystem
#15
Marcia Patricia Hoeltgebaum, Maurício Sedrez Dos Reis
Varronia curassavica is an important medicinal species associated with the restinga, one of the most threatened coastal ecosystems of the Atlantic Forest. These circumstances call for studies aimed at estimating effective population size and gene flow to improve conservation efforts. Hence, the present study aimed to characterize the genetic diversity, ploidy level, and population structure of this species in different areas of restinga using microsatellites. Varronia curassavica was characterized as an autotetraploid, with high genetic variability, low divergence, and no significant fixation indices, indicating the absence of, or reduced, inbreeding and genetic drift in the study area...
June 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28204600/evolutionary-and-functional-mitogenomics-associated-with-the-genetic-restoration-of-the-florida-panther
#16
Alexander Ochoa, David P Onorato, Robert R Fitak, Melody E Roelke-Parker, Melanie Culver
Florida panthers are endangered pumas that currently persist in reduced patches of habitat in South Florida, USA. We performed mitogenome reference-based assemblies for most parental lines of the admixed Florida panthers that resulted from the introduction of female Texas pumas into South Florida in 1995. With the addition of 2 puma mitogenomes, we characterized 174 single nucleotide polymorphisms (SNPs) across 12 individuals. We defined 5 haplotypes (Pco1-Pco5), one of which (Pco1) had a geographic origin exclusive to Costa Rica and Panama and was possibly introduced into the Everglades National Park, Florida, prior to 1995...
June 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28182234/ancestry-specific-methylation-patterns-in-admixed-offspring-from-an-experimental-coyote-and-gray-wolf-cross
#17
Bridgett vonHoldt, Elizabeth Heppenheimer, Vladimir Petrenko, Paula Croonquist, Linda Y Rutledge
Reduced fitness of admixed individuals is typically attributed to genetic incompatibilities. Although mismatched genomes can lead to fitness changes, in some cases the reduction in hybrid fitness is subtle. The potential role of transcriptional regulation in admixed genomes could provide a mechanistic explanation for these discrepancies, but evidence is lacking for nonmodel organisms. Here, we explored the intersection of genetics and gene regulation in admixed genomes derived from an experimental cross between a western gray wolf and western coyote...
June 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28505369/identification-of-an-early-male-killing-agent-in-the-oriental-tea-tortrix-homona-magnanima
#18
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
#19
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
#20
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
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