OBM Genetics is an international Open Access journal published quarterly online by LIDSEN Publishing Inc. It accepts papers addressing basic and medical aspects of genetics and epigenetics and also ethical, legal and social issues. Coverage includes clinical, developmental, diagnostic, evolutionary, genomic, mitochondrial, molecular, oncological, population and reproductive aspects. It publishes research articles, reviews, communications and technical notes, etc. There is no restriction on the length of the papers and we encourage scientists to publish their results in as much detail as possible.

Indexing: DOAJ-Directory of Open Access Journals.

Archiving: full-text archived in CLOCKSS.

Rapid publication: manuscripts are undertaken in 8.5 days from acceptance to publication (median values for papers published in this journal in the first half of 2019, 1-2 days of FREE language polishing time is also included in this period).

Current Issue: 2020  Archive: 2019 2018 2017

Special Issue

Pneumocystis: A Model of Adaptive Coevolution

Submission Deadline: October 31, 2018 (Open) Submit Now

Guest Editors

Andrés Moya

Prof. of Genetics, Institute of Integrative Systems Biology (University of Valencia), FISABIO Foundation for Biomedical Research and CIBER in Epidemiology and Public Health (CIBERESP), Spain

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Research Interests: genome evolution, symbiosis, microbiome

Enrique J.Calderón

Associate Prof. of Medicine, Instituto de Biomedicina de Sevilla, Hospital Universitario Virgen del Rocío/Consejo Superior de Investigaciones Científicas/Universidad de Sevilla, and Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Spain

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Research Interests: Infectious diseases, Pneumcystosis

Luis Delaye

Prof. of Bioinformatics, CINVESTAV Irapuato, México

Website | E-Mail

Research Interests: molecular evolution, phylogenetic inference

About This Topic

Pneumocystis organisms, which were first reported and named Pneumocystis carinii at the beginning of the last century, were long considered as protozoans and a single species based on morphologic features and the resistance to classical antifungal agents. The lack of a continuous in vitro system was a major obstacle to Pneumocystis research and these organisms were largely ignored until the dramatic increase in the incidence of Pneumocystis pneumonia that occurred with the emergence of the human immunodeficiency virus (HIV) pandemic, which made pneumocystosis a major medical and public health problem in the 1980s. However, this obvious pathogenic Pneumocystis–host interaction is only the tip of the iceberg, and recent findings suggest that the vast majority of mammal–Pneumocystis interactions led to relatively benign colonization, rather than pneumonia.

Molecular and biochemical studies have provided clear evidence for the placement of Pneumocystis with fungi, and based on genomic or phenotypic divergence, multiple Pneumocystis species have been recognized. Genetic data, in addition, suggested that speciation in the group resulted from long genetic isolation and co-evolution in parallel with mammal species.

In this special issue of OBM Genetics, we present the state-of-the art of the genetics and the coevolution of Pneumocystis in different mammalian species in a broad perspective, although with a particular emphasis on the human host. Reviews and methodological papers related with the topic are also welcome.

Planned Papers

Title: Dihydropteroate synthase (DHPS) polymorphisms in Pneumocystis jirovecii
Authors: Carmen de la Horra, Vicente Friaza, Rubén Morilla, María Mercedes Panizo, Yaxsier de Armas, Gustavo Wissmann, Enrique J. Calderón

Publication

Open Access Original Research

Genes Coding for GPI Biosynthesis in Pneumocystis Experienced Relaxed Selection: A Follow-up Study

Received: 05 May 2019;  Published: 11 July 2019;  doi: 10.21926/obm.genet.1903083

Abstract

Background: Phylogenetic analyses shows that Pneumocystis species have coevolved with their mammalian hosts for millions of years. As a result, infection by Pneumocystis is species specific (i.e. a given Pneumocystis species can infect only a single species of host). This specificity suggests the ex [...]
Open Access Review

Airborne Interindividual Transmission of Pneumocystis jirovecii

Received: 17 December 2018;  Published: 22 May 2019;  doi: 10.21926/obm.genet.1902080

Abstract

Pneumocystis pneumonia (PCP) is still the most frequent AIDS-defining disease in developed countries and also concerns patients with other immunodeficiencies not associated with HIV. Experimental studies on rodent models carried out in the early eighties have showed that Pneumocystis sp. can be tran [...]
Open Access Review

Pneumocystis Species Co-evolution: State-of-the-Art Review

Received: 22 February 2019;  Published: 15 May 2019;  doi: 10.21926/obm.genet.1902078

Abstract

At the end of the 20th century, the notion of a unique species in the genus Pneumocystis (i.e. Pneumocystis carinii) was challenged and our understanding of the natural history of pneumocystosis was drastically changed. It is now accepted that the Pneumocystis genus comprises multiple stenoxenic bio [...]
Open Access Research Article

New DNA Extraction Method for the Detection of Pneumocystis in Lung Tissue Samples of Colonized Individuals

Received: 30 January 2019;  Published: 18 March 2019;  doi: 10.21926/obm.genet.1901066

Abstract

Background: Pneumocystis jirovecii colonization in patients is associated with a low organism burden, which supports the need to use highly sensitive molecular techniques, such as nested-PCR to determine the presence of the organism. However, few studies have considered the effect of nucleic acid ex [...]
Open Access Review

Genotyping Pneumocystis jirovecii: Impacting Our Understanding of Interhuman Transmission

Received: 04 December 2018;  Published: 17 January 2019;  doi: 10.21926/obm.genet.1901060

Abstract

Pneumocystis jirovecii is an atypical fungus transmitted via interhuman airborn contact. This fungus is exclusively associated with humans and almost each individual has encountered it at least once before reaching the age of two. Pneumocystis jirovecii can be responsible for spontaneously resolutiv [...]
Open Access Review

Pneumocystis as a Co-Factor in Pulmonary Diseases

Received: 02 November 2018;  Published: 27 December 2018;  doi: 10.21926/obm.genet.1804057

Abstract

Pneumocystis causes life-threatening pneumonia in immunocompromised populations. More recently it has been implicated as a co-factor in a number of chronic lung diseases including chronic obstructive pulmonary disease (COPD), severe asthma, and cystic fibrosis. In this review, we will examine the cu [...]
Open Access Review

Reminiscence from Half a Century of Anti-Pneumocystis Drug Discovery and Development

Received: 12 September 2018;  Published: 06 December 2018;  doi: 10.21926/obm.genet.1804052

Abstract

Experiences with Pneumocystis carinii and Pneumocystis jirovecii over the past one-half century are recounted. Circumstances threatening the lives of children with fatal Pneumocystis pneumonia (PCP) in 1969 led to discovery of the anti-P. carinii activity of trimethoprim-sulfamethoxazole in the lab [...]
Open Access Review

Pneumocystis jirovecii Pneumonia: Current Advances in Laboratory Diagnosis

Received: 21 August 2018;  Published: 13 November 2018;  doi: 10.21926/obm.genet.1804049

Abstract

Pneumocystis jirovecii pneumonia (PcP) remains a major cause of respiratory illness among immunocompromised patients. PcP is difficult to diagnose, in particular in non-HIV-infected patients due to the lack of specific clinical data associated. Since P. jirovecii could not be cultivated for many y [...]
Open Access Review

The Relationship between Pneumocystis Infection in Animal and Human Hosts, and Climatological and Environmental Air Pollution Factors: A Systematic Review

Received: 14 September 2018;  Published: 25 October 2018;  doi: 10.21926/obm.genet.1804045

Abstract

Background: Over the past decade, there has been rising interest in the interaction of Pneumocystis with the environment. This interest has arisen in part from the demonstration that environmental factors have important effects on the viability and transmission of microbes, including Pneumocystis. E [...]
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