Transfer and Origin of Adaptations through Natural Hybridization: Were Anderson and Stebbins Right?

Arnold, Michael L.

doi:10.1105/tpc.160370

Cited by 152 publications

(142 citation statements)

References 66 publications

(101 reference statements)

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“…Introgression lines and introgression have been documented to be common during rapid speciation and host adaption (Arnold 2004). Although introgression has been rarely investigated in the evolution of fungi (Pease and Rosenzweig 2015; Zhang et al 2015), molecular phylogenetic analysis has demonstrated that the speciation of Epichloë species has often involved a complicated processes of hybridisation (Moon et al 2004).…”

Section: Resultsmentioning

confidence: 99%

“…Hybridisation and interbreeding between species can lead to adaptive introgression by transmitting beneficial alleles and has the potential to influence adaptation and speciation in a variety of ways, which can happen during either sympatric speciation or the secondary contact phase of allopatric speciation (Arnold 2004). Recent studies have revealed several mechanisms, including introgression, that can lead to adaptive divergence, especially in rapidly radiating groups (Pease et al 2016).…”

Section: Introductionmentioning

confidence: 99%

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Introgression and gene family contraction drive the evolution of lifestyle and host shifts of hypocrealean fungi

Zhang

Wang

et al. 2018

Mycology

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Hypocrealean fungi (Ascomycota) are known for their diversity of lifestyles. Their vital influences on agricultural and natural ecosystems have resulted in a number of sequenced genomes, which provide essential data for genomic analysis. Totally, 45 hypocrealean fungal genomes constructed a phylogeny. The phylogeny showed that plant pathogens in Nectriaceae diverged earliest, followed by animal pathogens in Cordycipitaceae, Ophiocordycipitaceae and Clavicipitaceae with mycoparasites in Hypocreaceae. Insect/nematode pathogens and grass endophytes in Clavicipitaceae diverged at last. Gene families associated with host-derived nutrients are significantly contracted in diverged lineages compared with the ancestral species. Introgression was detected in certain lineages of hypocrealean fungi, and the main functions of the genes located in the introgressed regions are involved in host recognition, transcriptional regulation, stress response and cell growth regulation. These results indicate that contraction of gene families and introgression might be main mechanisms to drive lifestyle differentiation and evolution and host shift of hypocrealean fungi.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Introgression and gene family contraction drive the evolution of lifestyle and host shifts of hypocrealean fungi

Zhang

Wang

et al. 2018

Mycology

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“…Hybridization is a powerful force for stimulating rapid genome-wide changes [115][116][117][118]. Since hybridization is the fusion of two haploid cells (gametes) from distinct organisms that usually do not interbreed, it has some analogies with symbiogenesis.…”

Section: Hybridizationmentioning

confidence: 99%

How life changes itself: The Read–Write (RW) genome

Shapiro

2013

Physics of Life Reviews

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The genome has traditionally been treated as a Read-Only Memory (ROM) subject to change by copying errors and accidents. In this review, I propose that we need to change that perspective and understand the genome as an intricately formatted Read-Write (RW) data storage system constantly subject to cellular modifications and inscriptions. Cells operate under changing conditions and are continually modifying themselves by genome inscriptions. These inscriptions occur over three distinct time-scales (cell reproduction, multicellular development and evolutionary change) and involve a variety of different processes at each time scale (forming nucleoprotein complexes, epigenetic formatting and changes in DNA sequence structure). Research dating back to the 1930s has shown that genetic change is the result of cell-mediated processes, not simply accidents or damage to the DNA. This cell-active view of genome change applies to all scales of DNA sequence variation, from point mutations to large-scale genome rearrangements and whole genome duplications (WGDs). This conceptual change to active cell inscriptions controlling RW genome functions has profound implications for all areas of the life sciences.

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“…It is possible that hybrid genomes improve the immunity of individuals which thus improves the long-term survival of the population, as has been found in North American salamanders (Fitzpatrick & Shaffer 2007). In these examples hybridisation could be viewed as a beneficial bridge for transfer of adaptations among lineages (Arnold 2004).…”

Section: La Conservationmentioning

confidence: 99%

“…1). As an important evolutionary process hybridisation can create new species (Kraus & Miyamato 1990 Arnold et al 1991;DeMarais et al 1992;Bullini 1994;Rieseberg et al 1995;Coyne & Orr 2004;Schwarz et al 2005), reinforce barriers between gene pools (Howard 1993;Coyne &Orr 1997Servedio & Noor 2003), limit speciation and adaptation (Slatkin 1987), swamp endangered species (Rhymer & Simberloff 1996) or form abridge for transfer of adaptations among lineages (Arnold 2004).…”

Section: Introductionmentioning

confidence: 99%

A review of genetic analyses of hybridisation in New Zealand

Morgan‐Richards

Smissen

Shepherd

et al. 2009

Journal of the Royal Society of New Zealand

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Hybridisation between related taxa has a range of possible biological consequences, ranging from the production of sterile offspring, through introgression of alleles into populations, to the formation of new species. Examples of plant and animal species hybridising with related taxa abound in the New Zealand region. We review New Zealand examples of hybridisation that have been verified with chromosomal, protein or DNA data. Contemporary hybridisation has been studied at hybrid zones where distinct populations meet and mate in a defined and stable zone of contact. The role of human habitat modification is highlighted with examples of recent range changes that have led to hybridisation and subsequent conservation problems. Hybridisation can result in the swamping of endangered species, although it can also act as a bridge for the transfer of adaptations among lineages. Historical hybridisation in New Zealand has been examined with phylogenetics and there are many examples of organelle introgression or capture. The origin of new species of New Zealand stick insects, ferns and daisies via hybridisation has been demonstrated with cytogenetic and DNA sequence evidence. Thus the importance of hybridisation in the evolution of New Zealand's flora and fauna is highlighted.

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Transfer and Origin of Adaptations through Natural Hybridization: Were Anderson and Stebbins Right?

Cited by 152 publications

References 66 publications

Introgression and gene family contraction drive the evolution of lifestyle and host shifts of hypocrealean fungi

Introgression and gene family contraction drive the evolution of lifestyle and host shifts of hypocrealean fungi

How life changes itself: The Read–Write (RW) genome

A review of genetic analyses of hybridisation in New Zealand

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