Microsatellite markers for Cryptolestes ferrugineus (Coleoptera: Laemophloeidae) and other Cryptolestes species

2015 ◽  
Vol 106 (2) ◽  
pp. 154-160 ◽  
Author(s):  
Y. Wu ◽  
F. Li ◽  
Z. Li ◽  
V. Stejskal ◽  
Z. Kučerová ◽  
...  
Keyword(s):  
Genomic Library ◽  
Insect Pest ◽  
Natural Populations ◽  
Reproductive Capacity ◽  
Broad Host Range ◽  
Cryptolestes Ferrugineus ◽  
Tropical Regions ◽  
The World ◽  
And Migration ◽  
Species Markers

AbstractCryptolestes ferrugineus (Stephens, 1831) is an important insect pest of stored products. Due to its broad host range, short life cycle, and high reproductive capacity, this species has rapidly colonized temperate and tropical regions around the world. In this study, we isolated 18 novel polymorphic microsatellite loci from an enriched genomic library based on a biotin/streptavidin capture protocol. These loci will be useful tool to better understand the genetic structure and migration patterns of C. ferrugineus throughout the world. The genetic parameters were estimated based on 80 individual C. ferrugineus from two natural populations. The results revealed that 18 loci were different polymorphic levels. The numbers of alleles ranged from 3 to 12, and eleven loci demonstrated polymorphic information contents greater than 0.5. The observed (HO) and expected (HE) heterozygosities ranged from 0.051 to 0.883 and 0.173 to 0.815, respectively. Five locus/population combinations significantly deviated from Hardy–Weinberg equilibrium. We also demonstrated the potential utility of the C. ferrugineus microsatellites as population and species markers for four additional Cryptolestes species.

Race, Criminal Justice, and Migration Control

2018 ◽  
Keyword(s):  
Criminal Justice ◽  
Social Control ◽  
Conceptual Analysis ◽  
Its Analysis ◽  
The World ◽  
Migration Control ◽  
Key Sites ◽  
And Migration ◽  
The Way

In an era of mass mobility, those who are permitted to migrate and those who are criminalized, controlled, and prohibited from migrating are heavily patterned by race. By placing race at the centre of its analysis, this volume brings together fourteen essays that examine, question, and explain the growing intersection between criminal justice and migration control. Through the lens of race, we see how criminal justice and migration enmesh in order to exclude, stop, and excise racialized citizens and non-citizens from societies across the world within, beyond, and along borders. Neatly organized in four parts, the book begins with chapters that present a conceptual analysis of race, borders, and social control, moving to the institutions that make up and shape the criminal justice and migration complex. The remaining chapters are convened around the key sites where criminal justice and migration control intersect: policing, courts, and punishment. Together the volume presents a critical and timely analysis of how race shapes and complicates mobility and how racism is enabled and reanimated when criminal justice and migration control coalesce. Race and the meaning of race in relation to citizenship and belonging are excavated throughout the chapters presented in the book, thereby transforming the way we think about migration.

East Asian Exceptionalism to Western Populism and Migration Crisis

2018 ◽  
pp. 196-210
Author(s):  
John Lie
Keyword(s):  
World War Ii ◽  
East Asia ◽  
East Asian ◽  
Northeast Asia ◽  
Historical Account ◽  
World War ◽  
Post World War Ii ◽  
The World ◽  
Migration Crisis ◽  
And Migration

In the 2010s, the world is seemingly awash with waves of populism and anti-immigration movements. Yet virtually all discussions, owing to the prevailing Eurocentric perspective, bypass East Asia (more accurately, Northeast Asia) and the absence of strong populist or anti-immigration discourses or politics. This chapter presents a comparative and historical account of East Asian exceptionalism in the matter of migration crisis, especially given the West’s embrace of an insider-outsider dichotomy superseding the class- and nation-based divisions of the post–World War II era. The chapter also discusses some nascent articulations of Western-style populist discourses in Northeast Asia, and concludes with the potential for migration crisis in the region.

scholarly journals Remarkable Species Diversity of the Leafhopper Genus Xestocephalus (Hemiptera: Cicadellidae: Aphrodinae) in Thailand

Insects ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 514
Author(s):  
Zonglei Liang ◽  
Christopher H. Dietrich ◽  
Wu Dai
Keyword(s):  
New Species ◽  
Species Diversity ◽  
Single Species ◽  
Comparative Morphology ◽  
Malaise Trap ◽  
Field Sampling ◽  
Tropical Regions ◽  
Trap Field ◽  
The World ◽  
First Time

Xestocephalus Van Duzee is among the most common and widespread genera of Cicadellidae in the temperate and tropical regions of the world. In the present study, 205 specimens of the genus Xestocephalus were collected in Thailand, whereas only a single species of the genus was recorded previously using Malaise trap field sampling, studied by comparative morphology. Seventeen species were recognized, including twelve new species: X. binarius sp. nov., X. chrysanthemum sp. nov., X. cowboyocreus sp. nov., X. densprint sp. nov., X. dimiprocessus sp. nov., X. exproiecturus sp. nov., X. gracilus sp. nov., X. limpidissimus sp. nov., X. malleus sp. nov., X. nonattribus sp. nov., X. recipinams sp. nov., and X. tenusis Liang sp. nov. Four species were recorded in Thailand for the first time: Xestocephalus abyssinicus Heller and Linnavuori, Xestocephalus asper Linnavuori, Xestocephalus ishidae Matsumura, and Xestocephalus toroensis Matsumura. Detailed morphological descriptions of all 17 species are given; photographs of external habitus and male genitalia of the species from Thailand are provided. A checklist of species of the genus is also given, and a key to all Thailand Xestocephalus species is also provided.

scholarly journals High Diversity in Urban Areas: How Comprehensive Sampling Reveals High Ant Species Richness within One of the Most Urbanized Regions of the World

Diversity ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 358
Author(s):  
François Brassard ◽  
Chi-Man Leong ◽  
Hoi-Hou Chan ◽  
Benoit Guénard
Keyword(s):  
Exotic Species ◽  
Urban Areas ◽  
Urban Landscapes ◽  
Dual Roles ◽  
Ant Communities ◽  
Continuous Increase ◽  
Tropical Regions ◽  
The World ◽  
Ant Diversity ◽  
The Vertical Distribution

The continuous increase in urbanization has been perceived as a major threat for biodiversity, particularly within tropical regions. Urban areas, however, may still provide opportunities for conservation. In this study focused on Macao (China), one of the most densely populated regions on Earth, we used a comprehensive approach, targeting all the vertical strata inhabited by ants, to document the diversity of both native and exotic species, and to produce an updated checklist. We then compared these results with 112 studies on urban ants to illustrate the dual roles of cities in sustaining ant diversity and supporting the spread of exotic species. Our study provides the first assessment on the vertical distribution of urban ant communities, allowing the detection of 55 new records in Macao, for a total of 155 ant species (11.5% being exotic); one of the highest species counts reported for a city globally. Overall, our results contrast with the dominant paradigm that urban landscapes have limited conservation value but supports the hypothesis that cities act as gateways for exotic species. Ultimately, we argue for a more comprehensive understanding of ants within cities around the world to understand native and exotic patterns of diversity.

Comparative gene genealogical analyses of strains of serotype AD identify recombination in populations of serotypes A and D in the human pathogenic yeast Cryptococcus neoformans

Microbiology ◽  
2003 ◽  
Vol 149 (8) ◽  
pp. 2147-2154 ◽  
Author(s):  
Jianping Xu ◽  
Thomas G. Mitchell
Keyword(s):  
Monoclonal Antibodies ◽  
Cryptococcus Neoformans ◽  
Natural Populations ◽  
The Other ◽  
Pathogenic Yeast ◽  
Gene Genealogy ◽  
Serotype A ◽  
The World ◽  
Significant Divergence ◽  
Allelic Group

Cryptococcus neoformans is a major pathogen of humans throughout the world. Using commercial monoclonal antibodies to capsular epitopes, strains of C. neoformans manifest five serotypes: A, B, C, D and AD. Previous studies demonstrated significant divergence among serotypes A, B, C and D, which are typically haploid. In contrast, most strains of serotype AD are diploid or aneuploid and result from recent hybridization between strains of serotypes A and D. Whether serotypes A, B, C and D represent strictly asexual lineages is not known. Using comparative genealogical analyses of two genes, the authors investigated whether recombination occurred among strains within serotypes A and D. For each of 14 serotype AD strains, a portion (642 bp) of the orotidine monophosphate pyrophosphorylase (URA5) gene was cloned and sequenced. Each of these 14 strains contained two different alleles and sequences for both alleles were obtained. The URA5 gene genealogy was compared to that derived from the laccase (LAC) gene, which was reported recently for the same 14 strains. For both genes, each of the 14 serotype AD strains contained two phylogenetically distinct alleles: one allele was highly similar to those from serotype A strains and the other to alleles from serotype D strains. However, within both the serotype A allelic group and the serotype D allelic group, there was significant incongruence between genealogies derived from URA5 and LAC. The results suggest recombination in natural populations of both serotypes A and D.

Marrying out: Exploring Dimensions of Cross-National Marriages among Qataris

2020 ◽  
Author(s):  
Sanaa Taha Alharahsheh ◽  
◽  
Feras Al Meer ◽  
Ahmed Aref ◽  
Gilla Camden
Keyword(s):  
Social Transformation ◽  
Social Changes ◽  
Daily Lives ◽  
Marriage Patterns ◽  
The Past ◽  
The World ◽  
Petroleum Resources ◽  
National Boundaries ◽  
And Migration ◽  
Cross National

In an age of social transformation characterized by globalization, wireless communication, and ease of travel and migration, more and more people around the world are marrying across national boundaries. This has occurred worldwide with the Gulf Cooperation Council (GCC) as no exception to this trend. As with the rest of the GCC, Qatar has witnessed remarkable social changes because of the discovery of petroleum resources that have affected the daily lives of people within Qatar in myriad ways. This includes marriage patterns, whereby cross-national marriages (marriages with non-Qataris) have shown a marked increase during the past few years, reaching 21% of total Qatari marriages in 2015 compared with only 16.5% in 1985.

scholarly journals Nanotechnology an Option in Mexican Agriculture

2020 ◽  
pp. 1-3
Author(s):  
Jaime Cuauhtémoc Negrete ◽  
Keyword(s):  
Neural Networks ◽  
Urban Population ◽  
Decision Makers ◽  
Artificial Vision ◽  
Healthy Development ◽  
The World ◽  
Food Dependency ◽  
And Migration ◽  
Day By Day ◽  
Modern Technologies

In Mexico, agriculture is increasingly less profitable, due to this situation its contribution to the country’s economy decreases day by day, which has encouraged the import of food, thus causing poverty and migration, food dependency and other undesirable situations for the healthy development of society in general, not only the rural population but also the urban population is affected, so all the technologies that can change this scenario are sought and explored, one of them being Nanotechnology, despite the benefits of nanotechnology, as is always the case, it is not applied in agriculture as most of the most widely used technologies in the world today, such as mechatronics, and other modern technologies such as neural networks, Artificial vision, and internet of things , this is also happening with nanotechnology, De la Revision made only some Authors have done the rest of the research only publishing revisions of research done abroad, so it is proposed that decision makers support researchers who really do work on this discipline that is so promising at present for the good of our agriculture , this being the objective of this work will review what has been done in this field in this regard in the nation

scholarly journals A global assessment of the potential distribution of naturalized and planted populations of the ornamental alien tree Schinus molle

NeoBiota ◽  
2021 ◽  
Vol 68 ◽  
pp. 105-126
Author(s):  
Jorge E. Ramírez-Albores ◽  
David M. Richardson ◽  
Valdir M. Stefenon ◽  
Gustavo A. Bizama ◽  
Marlín Pérez-Suárez ◽  
...  
Keyword(s):  
South Africa ◽  
Potential Distribution ◽  
Natural Populations ◽  
High Survival ◽  
Ecological Processes ◽  
Coverage Area ◽  
Schinus Molle ◽  
Novel Approach ◽  
The World ◽  
Dry Climates

The Peruvian Peppertree (Schinus molle L.) is an evergreen tree native to semiarid environments of Peru and Bolivia in South America. This tree has been introduced and widely planted for ornamental and forestry purposes in several semiarid regions of the world because its seedlings are easily established and have a high survival rate; it also grows quickly, and it is tolerant of dry climates. We compared the global and regional niches of naturalized and planted populations of S. molle in order to examine the invasive stages and potential distribution of this species in four regions of the world. This work provides a novel approach for understanding the invasion dynamics of S. molle in these areas and elucidates the ecological processes that bring about such invasions. Most naturalized and planted populations were found to be in equilibrium with the environment. In its native range as well as in Australia and South Africa the models of the coverage area of habitat suitability for natural populations were the highest, whereas the coverage area of planted populations was lower. For planted populations in Australia and South Africa, a large percentage of predicted presences fell within sink populations. The invasion stages of S. molle vary across regions in its adventive range; this result may be attributable to residence time as well as climatic and anthropic factors that have contributed to the spread of populations.

scholarly journals The Current Demographic Scenario

2018 ◽  
Vol 13 (2) ◽  
pp. 109-115
Author(s):  
Isidro Fierro Ulloa
Keyword(s):  
Large Population ◽  
Public Health Education ◽  
International Organization ◽  
Capital City ◽  
Negative Consequences ◽  
Birth Rates ◽  
The World ◽  
Fast Pace ◽  
And Migration ◽  
Demographic Impact

This research paper is aimed at thinking about the problem that the current demographic scenario means for mankind because of the excessive increase on the birth rates in poorest social class in the globe. This overpopulation is consuming the global resources at a fast pace and it is taking the world to its limits. This paper focuses on the increase of the population in India country 1.350 million inhabitants and more specifically on New Dahli its capital city whose large population is expected to be larger than China population by 2030. This study used the inductive approach to research to analyze the globe cities and its many problems which must become business and migration centers from populations focused on single cities which are making economic poverty, public health, education system and jobs a problem difficult to cope with. This approach allows to be in line with the current demographic scenario which uses the international organization data to monitor the global overpopulation. The results showed that a timely control over birth rates and the citizen´s education might minimize the demographic impact that the world currently experiences. In short, this situation should be regarded as the problem of the century one due to the negative consequences that should be efficiently treated in the ethics, social, politics and human.

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