Read by QxMD icon Read


Lilian Kimura, Kelly Nunes, Lúcia Inês Macedo-Souza, Jorge Rocha, Diogo Meyer, Regina Célia Mingroni-Netto
OBJECTIVES: Quilombo remnants are relics of communities founded by runaway or abandoned African slaves, but often with subsequent extensive and complex admixture patterns with European and Native Americans. We combine a genetic study of Y-chromosome markers with anthropological surveys in order to obtain a portrait of quilombo structure and history in the region that has the largest number of quilombo remnants in the state of São Paulo. METHODS: Samples from 289 individuals from quilombo remnants were genotyped using a set of 17 microsatellites on the Y chromosome (AmpFlSTR-Yfiler)...
October 20, 2016: American Journal of Human Biology: the Official Journal of the Human Biology Council
K L Darwent, R J McInnes, V Swanson
BACKGROUND: Family culture and beliefs are passed through the generations within families and influence what constitutes appropriate infant care. This includes infant feeding decisions where a family history and support network congruent with women's infant feeding intentions has been shown to be important to women's breastfeeding experience. This is reflected in breastfeeding rates where women who were not breastfed themselves are less likely to initiate and continue with breastfeeding...
October 19, 2016: BMC Pregnancy and Childbirth
Lianshuo Li, Zicheng Wang, Peng He, Shining Ma, Jie Du, Rui Jiang
Although networks of microbial species have been widely used in the analysis of 16S rRNA sequencing data of a microbiome, the construction and analysis of a complete microbial gene network is in general problematic because of the large number of microbial genes in metagenomics studies. To overcome this limitation, we propose to map microbial genes to functional units, including KEGG orthologous groups and the evolutionary genealogy of genes: Non-supervised Orthologous Groups (eggNOG) orthologous groups, to enable the construction and analysis of a microbial functional network...
October 13, 2016: Genomics, Proteomics & Bioinformatics
Joey B Tanney, David R McMullin, Blake D Green, J David Miller, Keith A Seifert
The genus Diaporthe comprises close to 800 species, with around 2000 names attributed to it and its asexual morphs previously recognized in Phomopsis. Diaporthe species are common plant associates, including saprotrophs, pathogens, and endophytes affiliated with a diverse range of hosts worldwide. In this study, an unknown Diaporthe sp. was frequently isolated as an endophyte from healthy Picea mariana and Picea rubens needles in the Acadian forest of Eastern Canada. Morphological observations and the application of the genealogical concordance phylogenetic species recognition concept using four unlinked loci (internal transcribed spacer (ITS), DNA-lyase (Apn2), translation elongation factor 1-α (EF1-α), and beta-tubulin (TUB)) support the distinctiveness of this species, described here as Diaporthe maritima...
November 2016: Fungal Biology
Laura Borrello, Chiara Cupidi, Valentina Laganà, Maria Anfossi, Maria Elena Conidi, Nicoletta Smirne, Maria Taverniti, Roberto Guarasci, Amalia Cecilia Bruni
The rebuilding of the N family, a large Italian kindred affected by early-onset autosomal dominant Alzheimer's disease (AD), provided an important contribution to the discovery of Presenilin 1 (PSEN1), the main gene responsible for familial AD. This pedigree was identified with the help of medical records from the archives of the Psychiatric Hospital of Girifalco, Italy. The clinical record of Angela R., an ancestor of the N family, dating back to 1904, showed a clinical picture of Angela R., consistent with a diagnosis of non-amnestic probable AD, matching the "dysexecutive" phenotype described in her descendants...
October 11, 2016: Journal of Neurology
Sanjay Kalra, Manash P Baruah, Bharti Kalra
This article is one of a series of publications which highlight the possible endocrine conditions and interventions listed in the ancient texts. This compendium lists episodes from the Indian epic Ramayana and from the associated genealogy of Lord Rama's dynasty, the Suryavanshis. These episodes are chosen for their relevance to endocrinology and are listed in a gland-based order. It is hoped that this communication will encourage further work on endocrine literary forensics.
September 2016: Indian Journal of Endocrinology and Metabolism
Yujun Cui, Yajun Song
This chapter summarizes researches on genome and evolution features of Yersinia pestis, the young pathogen that evolved from Y. pseudotuberculosis at least 5000 years ago. Y. pestis is a highly clonal bacterial species with closed pan-genome. Comparative genomic analysis revealed that genome of Y. pestis experienced highly frequent rearrangement and genome decay events during the evolution. The genealogy of Y. pestis includes five major branches, and four of them seemed raised from a "big bang" node that is associated with the Black Death...
2016: Advances in Experimental Medicine and Biology
James F Smith, John L Clark, Marisol Amaya-Márquez, Oscar H Marín-Gómez
Speciation by hybridization has long been recognized among plants and includes both homoploid and allopolyploid speciation. The numbers of presumed hybrid species averages close to 11% and tends to be concentrated in a subset of angiosperm families. Recent advances in molecular methods have verified species of hybrid origin that had been presumed on the basis of morphology and have identified species that were not initially considered hybrids. Identifying species of hybrid origin is often a challenge and typically based on intermediate morphology, or discrepancies between molecular datasets...
October 5, 2016: Molecular Phylogenetics and Evolution
E N Barker, L J Dawson, J H Rose, S Van Meervenne, O Frykman, C Rohdin, A Leijon, K E Soerensen, J Järnegren, G C Johnson, D P O'Brien, N Granger
BACKGROUND: Neurodegenerative diseases are a heterogeneous group of disorders characterized by loss of neurons and are commonly associated with a genetic mutation. HYPOTHESIS/OBJECTIVES: To characterize the clinical and histopathological features of a novel degenerative neurological disease affecting the brain of young adult Nova Scotia Duck Tolling Retrievers (NSDTRs). ANIMALS: Nine, young adult, related NSDTRs were evaluated for neurological dysfunction and rapid eye movement sleep behavior disorder...
September 2016: Journal of Veterinary Internal Medicine
Paulo G Hofstatter, Alexander K Tice, Seungho Kang, Matthew W Brown, Daniel J G Lahr
Recombinase enzymes promote DNA repair by homologous recombination. The genes that encode them are ancestral to life, occurring in all known dominions: viruses, Eubacteria, Archaea and Eukaryota. Bacterial recombinases are also present in viruses and eukaryotic groups (supergroups), presumably via ancestral events of lateral gene transfer. The eukaryotic recA genes have two distinct origins (mitochondrial and plastidial), whose acquisition by eukaryotes was possible via primary (bacteria-eukaryote) and/or secondary (eukaryote-eukaryote) endosymbiotic gene transfers (EGTs)...
October 12, 2016: Proceedings. Biological Sciences
Isabelle Bourdeau, Solange Grunenwald, Nelly Burnichon, Emmanuel Khalifa, Nadine Dumas, Marie-Claire Binet, Serge Nolet, Anne-Paule Gimenez-Roqueplo
BACKGROUND: More than 40% of patients with paragangliomas (PGL) harbor a germline mutation of the known PGL susceptibility genes mainly in the SDHB or SDHD genes. OBJECTIVE: To characterize the genetic background of the French Canadian (FC) patients with PGL and provide new clinical and paraclinical insights on SDHC-related PGL. METHODS: Genetic testing has been offered to FC patients affected with PGL followed at the adrenal genetics clinic at Centre Hospitalier de l'Université de Montréal (CHUM)...
October 4, 2016: Journal of Clinical Endocrinology and Metabolism
Pierpaolo Maisano Delser, Shannon Corrigan, Matthew Hale, Chenhong Li, Michel Veuille, Serge Planes, Gavin Naylor, Stefano Mona
Population genetics studies on non-model organisms typically involve sampling few markers from multiple individuals. Next-generation sequencing approaches open up the possibility of sampling many more markers from fewer individuals to address the same questions. Here, we applied a target gene capture method to deep sequence ~1000 independent autosomal regions of a non-model organism, the blacktip reef shark (Carcharhinus melanopterus). We devised a sampling scheme based on the predictions of theoretical studies of metapopulations to show that sampling few individuals, but many loci, can be extremely informative to reconstruct the evolutionary history of species...
2016: Scientific Reports
Amira Suriaty Yaakop, Kok-Gan Chan, Robson Ee, Yan Lue Lim, Siew-Kim Lee, Fazilah Abd Manan, Kian Mau Goh
Jeotgalibacillus malaysiensis, a moderate halophilic bacterium isolated from a pelagic area, can endure higher concentrations of sodium chloride (NaCl) than other Jeotgalibacillus type strains. In this study, we therefore chose to sequence and assemble the entire J. malaysiensis genome. This is the first report to provide a detailed analysis of the genomic features of J. malaysiensis, and to perform genetic comparisons between this microorganism and other halophiles. J. malaysiensis encodes a native megaplasmid (pJeoMA), which is greater than 600 kilobases in size, that is absent from other sequenced species of Jeotgalibacillus...
2016: Scientific Reports
Gavaachimed Lkhagvasuren, Heejin Shin, Si Eun Lee, Dashtseveg Tumen, Jae-Hyun Kim, Kyung-Yong Kim, Kijeong Kim, Ae Ja Park, Ho Woon Lee, Mi Jin Kim, Jaesung Choi, Jee-Hye Choi, Na Young Min, Kwang-Ho Lee
Members of the Mongol imperial family (designated the Golden family) are buried in a secret necropolis; therefore, none of their burial grounds have been found. In 2004, we first discovered 5 graves belonging to the Golden family in Tavan Tolgoi, Eastern Mongolia. To define the genealogy of the 5 bodies and the kinship among them, SNP and/or STR profiles of mitochondria, autosomes, and Y chromosomes were analyzed. Four of the 5 bodies were determined to carry the mitochondrial DNA haplogroup D4, while the fifth carried haplogroup CZ, indicating that this individual had no kinship with the others...
2016: PloS One
E Bolund, V Lummaa
Studies of evolutionary change require an estimate of fitness, and lifetime reproductive success is widely used for this purpose. However, many species face a trade-off between the number and quality of offspring and in such cases number of grandoffspring may better represent the genetic contribution to future generations. Here, we apply quantitative genetic methods to a genealogical data set on humans from Finland to address how the genetic correlation between number of children and grandchildren is influenced by the severity of the trade-off between offspring quality and quantity, as estimated by different levels of resource access among individuals in the population...
September 14, 2016: Heredity
Aimee Carrillo Rowe, Francesca T Royster
This introductory article considers the importance of queer woman of color theorizations of affect in thinking more fully the recent interdisciplinary turn to affect. The affective turn has vitally invited culture and feminist critics to interrogate emotion beyond the individual to examine the political and cultural production of emotion. Even as women of color are often associated with excessive affect, the theoretical contributions women of color make to the field of affect studies are often overlooked. Our introduction and this special issue more broadly examine how this solipsism shapes projects invested in critical knowledge production, as well as the stakes of centering a queer woman of color genealogy...
September 12, 2016: Journal of Lesbian Studies
N Yilmaz, C M Visagie, J C Frisvad, J Houbraken, K Jacobs, R A Samson
The taxonomy of Talaromyces rugulosus, T. wortmannii and closely related species, classified in Talaromyces sect. Islandici, is reviewed in this paper. The species of Talaromyces sect. Islandici have restricted growth on MEA and CYA, generally have yellow mycelia and produce rugulosin and/or skyrin. They are important in biotechnology (e.g. T. rugulosus, T. wortmannii) and in medicine (e.g. T. piceus, T. radicus). The taxonomy of sect. Islandici was resolved using a combination of morphological, extrolite and phylogenetic data, using the Genealogical Concordance Phylogenetic Species Recognition (GCPSR) concept, with special focus on the T...
June 2016: Persoonia
M Sandoval-Denis, J Gené, D A Sutton, J F Cano-Lira, G S de Hoog, C A Decock, N P Wiederhold, J Guarro
The genera Microascus and Scopulariopsis comprise species commonly isolated from soil, decaying plant material and indoor environments. A few species are also recognised as opportunistic pathogens of insects and animals, including humans. In the past, the taxonomy of these fungi has been based on morphology only. With the aim to clarify the taxonomy and phylogeny of these fungi, we studied a large set of clinical and environmental isolates, including the available ex-type strains of numerous species, by means of morphological, physiological and molecular analyses...
June 2016: Persoonia
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"