Population genetics and phylogeography of the blue rockfish (Sebastes mystinus) from Washington to California

2004 ◽  
Vol 61 (3) ◽  
pp. 332-342 ◽  
Author(s):  
Jason M Cope
Keyword(s):  
Nucleotide Diversity ◽  
Haplotype Diversity ◽  
The United States ◽  
Genetic Distances ◽  
Mitochondrial Dna Control Region ◽  
Full Sequence ◽  
Biogeographic Barrier ◽  
To Come ◽  
Sebastes Mystinus ◽  
North And South

Blue rockfish (Sebastes mystinus) are a major component of nearshore ecology and fisheries on the west coast of the United States, but the extent of spatial structuring between localized populations is unknown. I sampled 245 blue rockfish at eight locations from Washington to California and sequenced a 498 base pair portion of the mitochondrial DNA control region to describe genetic diversity, population structure, and phylogeography. Haplotype diversity was high, but nucleotide diversity was low, indicating historically unstable population dynamics. Significantly high levels of population differentiation were detected among sample sites (maximum pairwise FST: full sequence = 0.25, reduced sequence = 0.74, P < 0.001), with a distinct break (ΦCT: full sequence = 0.12; reduced sequence = 0.36, P < 0.05) north and south of Cape Mendocino and no overall trend between geographic and genetic distances. Cape Mendocino may prove an important biogeographic barrier to other marine organisms, but it has not been extensively explored as such. The northern subpopulation derived from the southern subpopulation, but little contact has been made between the populations for potentially thousands of years. Therefore, repopulation of a depleted southern subpopulation is unlikely to come from the less-fished northern subpopulation.

scholarly journals Study on haplotype diversity of Y-STR loci of the Kinh population in Vietnam

2017 ◽  
Vol 33 (2S) ◽  
Author(s):  
Trinh Tuan Toan ◽  
Vu Le Loi ◽  
Ha Quoc Khanh ◽  
Nguyen Quang Vinh ◽  
Nguyen Quang Huy
Keyword(s):  
Haplotype Diversity ◽  
Genetic Distances ◽  
Statistical Validation ◽  
Finger Nail ◽  
Str Loci ◽  
The North ◽  
Migration History ◽  
Close Relationship ◽  
Forensic Case ◽  
North And South

The study was carried out to determine allele frequencies of Y-STRloci in order to apply in the statistical validation of forensic case and paternal lineages. 17 Y-STR loci were co-amplified (including: DYS19, DYS389I, DYS389II, DYS390, DYS391, DYS392, DYS393, DYS385, DYS437, DYS438, DYS439, DYS448, DYS456, DYS458, DYS635, and GATAH4) using DNA genome extracted from blood, hair root and finger nail samples of 205 unrelated men of Kinh population in the North and South of Vietnam. The studied population shows that a relatively close relationship between the Jiangxi (Han) and Jiangsu (Han) populations in China and the Han population in Taiwan. Compared to other population with geographic locations far removed from Vietnam and historically and culturally diverse, there are significant differences as with Americans (Rst = 0.3836, P <0.0001); The Germans (Rst = 0.3562, p = -1.0000); The Romans (Rst = 0.2918, p = -1.0000) or Ethiopian (Rst = 0.3139, p = -1.0000) and particularly significant differences with Nigerians (Rst = 0.5084, p = -1.0000). The genetic diversity indexes at each locus and the haplotypes were examined; Genetic distances between the King population in this study and neighboring populations and geographically remote populations are consistent with the migration history.  

scholarly journals Molecular Identification of some Indian Muscid flies (Diptera: Muscidae) based on mitochondrial gene COII

2017 ◽  
Author(s):  
Devinder Singh ◽  
Ramandeep Achint
Keyword(s):  
Molecular Identification ◽  
Nucleotide Diversity ◽  
Diagnostic Marker ◽  
Mitochondrial Gene ◽  
Haplotype Diversity ◽  
Morphological Characters ◽  
Genetic Distances ◽  
Veterinary Importance ◽  
Coii Gene ◽  
Intraspecific Distance

ABSTRACTTaxonomic identification of flies having medical and veterinary importance is often complicated due to the lookalike morphological characters. Molecular identification of five Indian muscid flies (Musca domestica, Musca sorbens, Musca crassirostris, Stomoxys calcitrans and Haematobia irritans) has been attempted on the basis of mitochondrial COII gene. Sequences of 500-520 bp were analysed and found to be A+T rich. Rate of transitions was higher than transversions. The average haplotype diversity was 0.833 and nucleotide diversity was 0.02547 within the different species, which were calculated with the DnaSP Version 5.0. The genetic distances calculated by K2P model, showed the interspecific distances range more than 8.2%, while the intraspecific distance range had not exceed 0.8%. The 1000 bootstrapped Neighbour-joining tree and Maximum likelihood tree were constructed to establish the phylogenetic relationship between the different muscid species. The results show the robustness of COII gene as a diagnostic marker. The data obtained from this study would be worthy for medical and veterinary entomologists for precise identification of imperative muscid species.

scholarly journals MITOCHONDRIAL DNA STUDY OF MONGOLIAN EQUUS CABALLUS

2018 ◽  
pp. 77-86
Author(s):  
Bolor-Oyut B ◽  
Ochirkhuyag B ◽  
Khulan J
Keyword(s):  
Genetic Diversity ◽  
Mitochondrial Dna ◽  
Control Region ◽  
Nucleotide Diversity ◽  
Sequence Variation ◽  
Haplotype Diversity ◽  
Sequence Analyses ◽  
Mitochondrial Dna Control Region ◽  
Evolutionary Studies ◽  
High Level

In order to assess the genetic diversity and maternal lineages of Mongolian native horse populations, we examined using mitochondrial DNA control region sequence analyses. The control region of mitochondrial DNA is widely used for population and evolutionary studies because of its high level of sequence variation, in addition to a lack of recombination and maternal heritance. To determine genetic diversity and maternal heritance, we collected 19 blood samples of Darhad horses from Khuvsgul, Tes horses from Zavkhan and Taij horses from Dundgobi, Mongolia.In this study, 16 haplotypes and 51 polymorphic sites were detected. Haplotype diversity was 0.9766 and nucleotide diversity was 0.0212 in Mongolian native horses. Finally, 5 horse haplogroups (A, C, D, F, I) were identified in 16 haplotypes in this study.

scholarly journals Mitochondrial DNA control region diversity in Common Terns Sterna hirundo from Slovenia and Croatia

Acrocephalus ◽  
2019 ◽  
Vol 40 (180-181) ◽  
pp. 69-78
Author(s):  
Ida Svetličić ◽  
Jelena Kralj ◽  
Miloš Martinović ◽  
Davorin Tome ◽  
Tilen Basle ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Control Region ◽  
Nucleotide Diversity ◽  
Haplotype Diversity ◽  
Mitochondrial Control Region ◽  
Diversity Indices ◽  
Common Tern ◽  
Sterna Hirundo ◽  
Mitochondrial Dna Control Region ◽  
High Level

Abstract63 Common Tern Sterna hirundo samples from Croatia and Slovenia were analysed with respect to their genetic diversity and differentiation. Samples originated from two freshwater populations (areas of the rivers Sava and Drava) and one coastal population (Sečovlje Salina). The molecular marker of choice was 709 bp long fragment of the mitochondrial control region, the fastest-evolving part of the mitochondrial genome. 21 haplotypes with 12 polymorphic sites were identified. Overall haplotype diversity was substantial and estimated at 0.8599, while the overall nucleotide diversity was low and estimated at 0.0025. Diversity indices were highest for the Drava population, followed by the Sava and the lowest for the Sečovlje population. Overall genetic structure was significantly low (Fst=0.0377) and attributed to the differences in haplotype frequencies between the populations. The high level of genetic diversity found in continental populations illustrates the importance of their habitats as reservoirs of genetic diversity and calls for their further protection and management.

Gerald H. Thayer's ornithological work in St Vincent and the Grenadines, Lesser Antilles

2018 ◽  
Vol 45 (1) ◽  
pp. 21-39 ◽  
Author(s):  
James W. Wiley
Keyword(s):  
New York ◽  
New York City ◽  
West Indies ◽  
The United States ◽  
Lesser Antilles ◽  
American Museum ◽  
The West ◽  
Comparative Zoology ◽  
North And South America ◽  
North And South

Gerald Handerson Thayer (1883–1939) was an artist, writer and naturalist who worked in North and South America, Europe and the West Indies. In the Lesser Antilles, Thayer made substantial contributions to the knowledge and conservation of birds in St Vincent and the Grenadines. Thayer observed and collected birds throughout much of St Vincent and on many of the Grenadines from January 1924 through to December 1925. Although he produced a preliminary manuscript containing interesting distributional notes and which is an early record of the region's ornithology, Thayer never published the results of his work in the islands. Some 413 bird and bird egg specimens have survived from his work in St Vincent and the Grenadines and are now housed in the American Museum of Natural History (New York City) and the Museum of Comparative Zoology (Cambridge, Massachusetts). Four hundred and fifty eight specimens of birds and eggs collected by Gerald and his father, Abbott, from other countries are held in museums in the United States.

Looking Out for Something Better to Come: Interview with Director Hanna Polak

2016 ◽  
Vol 69 (4) ◽  
pp. 65-71
Author(s):  
Masha Shpolberg
Keyword(s):  
United States ◽  
The United States ◽  
Hair Color ◽  
Yale University ◽  
Garbage Dump ◽  
To Come

Hanna Polak was in the United States in December 2015 for a screening of Something Better to Come (2014) and The Children of Leningradsky (2004) at Yale University, where the interview was conducted. Polak's devastating documentary Something Better to Come swept through the festival circuit with force, winning a Special Jury Award at IDFA along with awards at over twenty other festivals. Shot illegally on a garbage dump just outside Moscow over the course of fourteen years, the film follows a girl named Yula from age 10 to 24, as she grows up doing the things that teenagers everywhere do—experimenting with her hair color and makeup, with cigarettes and alcohol—all while living in the most difficult of conditions.

The Racial and Economic Context of Trump Support: Evidence for Threat, Identity, and Contact Effects in the 2016 Presidential Election

2018 ◽  
Author(s):  
Eric Knowles ◽  
Linda Tropp
Keyword(s):  
The United States ◽  
Local Economy ◽  
Racial Identification ◽  
White Americans ◽  
Social Scientists ◽  
Neighborhood Diversity ◽  
Nationally Representative ◽  
To Come ◽  
Neighborhood Level ◽  
Support Evidence

Donald Trump's ascent to the Presidency of the United States defied the expectations of many social scientists, pundits, and laypeople. To date, most efforts to understand Trump's rise have focused on personality and demographic characteristics of White Americans. In contrast, the present work leverages a nationally representative sample of Whites to examine how contextual factors may have shaped support for Trump during the 2016 presidential primaries. Results reveal that neighborhood-level exposure to racial and ethnic minorities is associated with greater group threat and racial identification among Whites, as well as greater intentions to vote for Trump in the general election. At the same time, however, neighborhood diversity afforded Whites with opportunities for intergroup contact, which is associated with lower levels of threat, White identification, and Trump support. Further analyses suggest that a healthy local economy mutes threat effects in diverse contexts, allowing contact processes to come to the fore.

Migration for Mission

2019 ◽  
Author(s):  
Mary Johnson ◽  
Patricia Wittberg ◽  
Mary Gautier ◽  
Thu Do
Keyword(s):  
United States ◽  
Qualitative Data ◽  
The United States ◽  
National Study ◽  
Catholic Sisters ◽  
Long Line ◽  
Catholic Organizations ◽  
To Come ◽  
Washington University ◽  
The Trinity

This book presents quantitative and qualitative data from the first-ever national study of international Catholic sisters in the United States, the Trinity Washington University/CARA Study. International sisters are defined as those born outside the United States and currently ministering, studying, or in residence in this country. The book begins with a chapter that locates current international sisters in the long line of sisters who have come to this country since the eighteenth century. The book identifies the sisters of today, describes the pathways they used to come here, their levels of satisfaction, their concerns and contributions, the issue of immigration status, the challenges of sister students, and the role and mission of Catholic organizations assisting immigrants in general, and international sisters in particular. The book ends with implications of the research and recommendations regarding resources, ministries, and structures of support for international sisters.

Crystallex Int'l Corp. v. Bolivarian Rep. Venez. (3D Cir.)

2021 ◽  
pp. 1-21
Author(s):  
Kevin D. Benish
Keyword(s):  
United States Supreme Court ◽  
The United States ◽  
United States Supreme ◽  
Decision To Leave ◽  
Court Of Appeals ◽  
The Third ◽  
To Come ◽  
Alter Ego ◽  
Oil Company ◽  
The U.S

On May 18, 2020, the United States Supreme Court denied a request by the Bolivarian Republic of Venezuela and its state-owned oil company, Petróleos de Venezuela, S.A. (PDVSA), to review the merits of Crystallex Int'l Corp. v. Bolivarian Republic of Venezuela, a decision by the U.S. Court of Appeals for the Third Circuit. In Crystallex, the Third Circuit affirmed a trial court's determination that PDVSA is the “alter ego” of Venezuela itself, thus permitting Crystallex to enforce a $1.4 billion judgment against Venezuela by attaching property held in PDVSA's name. Given the Supreme Court's decision to leave the Third Circuit's opinion undisturbed, Crystallex is a significant decision that may affect parties involved in transnational litigation for years to come—especially those pursuing or defending against U.S. enforcement proceedings involving the property of foreign states.

scholarly journals Belonging in the Coronaverse: Will There Be Time?

2021 ◽  
Vol 1 (1) ◽  
pp. 100-115
Author(s):  
Kate Fischer ◽  
Malika Rakhmonova ◽  
Mike Tran
Keyword(s):  
College Experience ◽  
The United States ◽  
Limited Time ◽  
The Novel ◽  
Residential University ◽  
To Come ◽  
Novel Coronavirus ◽  
University Experience ◽  
The U.S ◽  
Older Siblings

Abstract Since the spring of 2020 SARS-CoV-2, the novel coronavirus, has upended lives and caused a rethinking of nearly all social behaviors in the United States. This paper examines the ways in which the pandemic, shutdown, and gradual move towards “normal” have laid bare and obfuscated societal pressures regarding running out of time as it pertains to the residential university experience. Promised by movies, television, and older siblings and friends as a limited-time offer, the “typical” college experience is baked into the U.S. imaginary, reinforcing a host of notions of who “belongs” on campus along lines of race, class, and age. Fed a vision of what their whole lives “should be”, students who enter a residential four-year college are already imbued with a nostalgia for what is yet to come, hailed, in Althusser’s (2006[1977]) sense, as university subjects even before their first class. The upheaval of that subjecthood during the pandemic has raised important questions about the purpose of the college experience as well as how to belong to a place that is no longer there.

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