The Biology of Invasions: The Genetic Adaptation Paradox

Pérez, Julio E.; Nirchio, Mauro; Alfonsi, Carmen; Muñoz, Carlos

doi:10.1007/s10530-005-8281-0

Cited by 84 publications

(73 citation statements)

References 31 publications

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“…This contrasts to Wares et al's (2005) review of heterozygozity comparisons between native and invasive populations which suggests that natural selection is the major determinant of evolutionary trajectories of invasive populations. Other genetic mechanisms such as epigenetic preadaptation or post-invasive adaptive mutation (see Perez et al 2006) may have also played a role in the invasive success of T. solanivora. A better understanding of these mechanisms will require further studies on populations and environments in both native and invaded areas through the analysis of nuclear markers and the comparison of fitness-related traits.…”

Section: Genetic Bottlenecks and Invasion Successmentioning

confidence: 99%

Genetic bottleneck in invasive species: the potato tuber moth adds to the list

et al. 2007

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The level of genetic diversity within populations of introduced species has received increasing attention as an important factor influencing their survival and adaptive potential. We examined this issue with the Guatemalan potato tuber moth Tecia solanivora, an agricultural pest which has successfully invaded South America and the Canary Islands within the last 20 years. To analyse changes in T. solanivora genetic diversity, the mitochondrial marker cytochrome b was sequenced from individuals collected across its known distribution area. High haplotypic diversity was observed in Guatemala, whereas only three haplotypes have been found in Venezuela and a single one in the remaining invaded South American countries and the Canary Islands. Invasive haplotypes were not observed in our samples from Guatemala but are closely related to Guatemalan haplotypes. These results are consistent with the hypotheses that (i) either a few individuals were introduced into Venezuela leading to a strong initial genetic bottleneck, or selection pressure may have lead to the disparition of all but a reduced number of introduced haplotypes, (ii) a second bottleneck occured between Venezuela and Colombia, and (iii) the invasion of the Canary Islands originated from South America. We further reviewed the recent literature to compare this change in genetic diversity with those reported for other invasive species. We quantified the changes in genetic diversity between native and introduced ranges for 57 biological invasions. We found that the genetic homogenization in T. solanivora was among the strongest reported and discuss factors that can explain the success of invasive populations with low genetic diversity.

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Section: Genetic Bottlenecks and Invasion Successmentioning

confidence: 99%

Genetic bottleneck in invasive species: the potato tuber moth adds to the list

et al. 2007

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“…Alternatively, the spreading of this introduced fungus could also be explained by the lack of co-evolution events. Introduced species often arrive in their new environment without coevolved natural enemies and/or competitors from their natural habitats (Allendorf and Lundquist 2003;Pérez et al 2006). It has been suggested that the presence of pathogens, competitive species, and, in more general terms, of high levels of biodiversity, may be a crucial key in making native ecosystems more resilient to colonization (Kennedy et al 2002).…”

Section: Mechanisms Of Invasionmentioning

confidence: 99%

Alien fungal species distribution: the study case of Favolaschia calocera

Vizzini

Zotti

Mello³

2008

Biol Invasions

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“…Irrespective of the specific underlying mechanisms, rapid shifts in distribution are expected for taxa with good dispersal capabilities (Pearson and Dawson 2003), with such changes in distributions likely impacting on current patterns of biodiversity; for example, taxa that exploit new environments may reduce the niche space of native species and/or alter ecosystem function (Sakai et al 2001;Gabbard and Fowler 2007). An essential part of biodiversity conservation, therefore, is to identify the evolutionary patterns and processes that are associated with successful colonisation (Pérez et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Patterns of spatial genetic structure and diversity at the onset of a rapid range expansion: colonisation of the UK by the small red-eyed damselfly Erythromma viridulum

2010

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Species' geographic ranges may vary in size in response to a change in environmental conditions. The specific genetic consequences of range expansions are context dependent, largely depending upon the rate of colonisation as well as the origins and numbers of founders, and the time since colonisation. Like other ''charismatic'' taxa, such as birds and lepidopterans, the distributions of odonates (dragonflies and damselflies) are wellknown through substantial monitoring programmes co-ordinated by various societies. The small red-eyed damselfly Erythromma viridulum (Odonata: Zygoptera) has undergone a substantial, northward range expansion in Europe in the last 30 years and has recently-colonised two distinct areas in the UK. We quantify the immediate genetic consequences of this rapid colonisation by genotyping more than 1,400 E. viridulum from 39 sites across the northwest margin of this species' geographic range. Levels of genetic diversity and spatial structure are impacted by this species recent range expansion and non-equilibrium conditions that drive weak genetic divergence, even at regional spatial scales. Populations of E. viridulum become less diverse towards the edge of this species' distribution, presumably as a consequence of colonisation through a series of founder events. Specifically, there is a significant reduction in genetic diversity in the smallest, most recent focus of colonisation in the UK; however, there are generally low levels of genetic diversity across this E. viridulum's northern range margin. While most populations are generally poorly differentiated, E. viridulum nonetheless consists of two distinct lineages that broadly differentiate between eastern and western Europe. Genetic divergence between the two UK colonisation foci are indicative of distinct immigration events from separate sources; however a general lack of spatial structure prevents us from pinpointing the specific origins of these migrant damselflies.

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The Biology of Invasions: The Genetic Adaptation Paradox

Cited by 84 publications

References 31 publications

Genetic bottleneck in invasive species: the potato tuber moth adds to the list

Genetic bottleneck in invasive species: the potato tuber moth adds to the list

Alien fungal species distribution: the study case of Favolaschia calocera

Patterns of spatial genetic structure and diversity at the onset of a rapid range expansion: colonisation of the UK by the small red-eyed damselfly Erythromma viridulum

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