Jumping genes and epigenetics: Towards new species

Rebollo, Rita; Horard, Béatrice; Hubert, Benjamin; Vieira, Cristina

doi:10.1016/j.gene.2010.01.003

Cited by 152 publications

(126 citation statements)

References 101 publications

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“…Because the effects of TEs were seen at that time as being predominantly deleterious, some authors concluded that TEs would have only the effect of increasing the genetic load, rather than leading to speciation (Krieber and Rose 1986). We now have considerable evidence showing the impact of the TEs throughout evolution (Biémont and Vieira 2006;Feschotte and Pritham 2007), possibly through chromosomal rearrangements (King 1995;see Zhang et al 2009 in maize), but the possibility that TEs may have facilitated or promoted speciation is still the subject of considerable debate (Fontdevila 2005;Rebollo et al 2010). This is because it is difficult to find out whether a change in TE content or activity during a specific evolutionary period is the cause or the consequence of the speciation process.…”

Section: Transposable Elements As Players In Evolutionmentioning

confidence: 99%

A Brief History of the Status of Transposable Elements: From Junk DNA to Major Players in Evolution

2010

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The idea that some genetic factors are able to move around chromosomes emerged more than 60 years ago when Barbara McClintock first suggested that such elements existed and had a major role in controlling gene expression and that they also have had a major influence in reshaping genomes in evolution. It was many years, however, before the accumulation of data and theories showed that this latter revolutionary idea was correct although, understandably, it fell far short of our present view of the significant influence of what are now known as ''transposable elements'' in evolution. In this article, I summarize the main events that influenced my thinking about transposable elements as a young scientist and the influence and role of these specific genomic elements in evolution over subsequent years. Today, we recognize that the findings about genomic changes affected by transposable elements have considerably altered our view of the ways in which genomes evolve and work.

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Section: Transposable Elements As Players In Evolutionmentioning

confidence: 99%

A Brief History of the Status of Transposable Elements: From Junk DNA to Major Players in Evolution

2010

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“…Werren (2011) listed transposable elements, meiotic drivers, supernumerary B chromosomes, postsegregation killers, and heritable microbes and organelles that distort sex determination as examples of SGEs. A good example of the influence of SGEs on hybrid incompatibility is the Overdrive (Ovd) gene that causes both male sterility and segregation distortion in F 1 hybrids between subspecies of D. pseudoobscura (Phadnis and Orr, 2009 Disruption of epigenetic control of transposable elements is also associated with hybrid incompatibility in a wide range of taxa (Rebollo et al, 2010). A well-known case is hybrid dysgenesis in Drosophila species, which is caused by insufficient epigenetic silencing of paternally inherited transposons (Vela et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Interspecific hybrids of dwarf hamsters and Phasianidae birds as animal models for studying the genetic and developmental basis of hybrid incompatibility

Ishishita

Matsuda

2016

Genes Genet. Syst.

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Hybrid incompatibility is important in speciation as it prevents gene flow between closely related populations. Reduced fitness from hybrid incompatibility may also reinforce prezygotic reproductive isolation between sympatric populations. However, the genetic and developmental basis of hybrid incompatibility in higher vertebrates remains poorly understood. Mammals and birds, both amniotes, have similar developmental processes, but marked differences in development such as the XY/ZW sex determination systems and the presence or absence of genomic imprinting. Here, we review the sterile phenotype of hybrids between the Phodopus dwarf hamsters P. campbelli and P. sungorus, and the inviable phenotype of hybrids between two birds of the family Phasianidae, chicken (Gallus gallus domesticus) and Japanese quail (Coturnix japonica). We propose hypotheses for developmental defects that are associated with these hybrid incompatibilities. In addition, we discuss the genetic and developmental basis for these defects in conjunction with recent findings from mouse and avian models of genetics, reproductive biology and genomics. We suggest that these hybrids are ideal animal models for studying the genetic and developmental basis of hybrid incompatibility in amniotes.

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“…They are believed to play critical roles in the remodeling and controlling of genome function in response to environmental pressures and in speciation. 1 Approximately 44% of the human genome is composed of TE (http://genome.ucsc.edu), some of which remain active at an estimated rate of 1 insertion in 10-100 live births. [2][3][4] Over 60 years ago, Barbara McClintock 5 discovered transposition and proposed that TE modifies and controls maize gene expression.…”

Section: Introductionmentioning

confidence: 99%

“…These studies are well reviewed by several groups. 1,[6][7][8] This review focuses on the Alu family, which is a member of the small interspersed elements (SINEs), a group of RNA-mediated retrotransposable elements.…”

Section: Introductionmentioning

confidence: 99%