Obligatory parthenogenesis and TE load: Bacillus stick insects and the R2 non-LTR retrotransposon

Insect Science
Livia BonandinB Mantovani

Abstract

Transposable elements (TEs) are selfish genetic elements whose self-replication is contrasted by the host genome. In this context, host reproductive strategies are predicted to impact on both TEs load and activity. The presence and insertion distribution of the non-LTR retrotransposon R2 was here studied in populations of the strictly bisexual Bacillus grandii maretimi and of the obligatory parthenogenetic Bacillus atticus atticus. Furthermore, data were also obtained from the offspring of selected B. a. atticus females. At the population level, the gonochoric B. g. maretimi showed a significantly higher R2 load than the obligatory parthenogenetic B. a. atticus. The comparison with bisexual and unisexual Bacillus rossius populations showed that their values were higher than those recorded for B. a. atticus and similar, or even higher, than those of B. g. maretimi. Consistently, an R2 load reduction is scored in B. a. atticus offspring even if with a great variance. On the whole, data here produced indicate that in the obligatory unisexual B. a. atticus R2 is active and that mechanisms of molecular turnover are effective. Furthermore, progeny analyses show that, at variance of the facultative parthenogenetic B. rossius, the R2 a...Continue Reading

References

May 23, 2001·Current Biology : CB·S Wright, D Finnegan
Mar 5, 2004·Nucleic Acids Research·Hirofumi FujimotoHideaki Maekawa
Jul 15, 2005·Molecular Biology and Evolution·Kenji K Kojima, Haruhiko Fujiwara
Aug 12, 2005·Cytogenetic and Genome Research·I R Arkhipova
Nov 16, 2005·Annual Review of Genetics·Masatoshi Nei, Alejandro P Rooney
Jul 28, 2006·Molecular Biology and Evolution·Kenji K KojimaHaruhiko Fujiwara
Aug 5, 2006·Genetics·Elie S Dolgin, Brian Charlesworth
Mar 28, 2008·BMC Evolutionary Biology·Laurence Loewe, Dunja K Lamatsch
May 21, 2008·Journal of Molecular Evolution·Pegah Valizadeh, Teresa J Crease
Aug 6, 2008·Molecular and Cellular Biology·Danna G EickbushThomas H Eickbush
Apr 2, 2010·Proceedings. Biological Sciences·Sarah SchaackMichael Lynch
Mar 23, 2011·Genome Génome / Conseil National De Recherches Canada·Dmitry V MukhaCoby Schal
May 3, 2012·Molecular Ecology·Ken KraaijeveldPeter De Knijff

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.