Conservation genetics of two critically endangered island dwarf carnivores

Flores‐Manzanero, Alejandro; Valenzuela‐Galván, David; Cuarón, Alfredo D.; Vázquez‐Domínguez, Ella

doi:10.1007/s10592-021-01401-x

Cited by 9 publications

(10 citation statements)

References 90 publications

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“…The effect of human activities on hybridization has long been known [ 102 ], and domestication is one of many anthropogenic factors that may increase the frequency of hybridization. The introduction of invasive species to distribution ranges of closely related species may have a similar effect [ 36 , 103 ]. Together with habitat fragmentation and destruction, introduced species are an important threat to global biodiversity [ 104 , 105 , 106 , 107 ].…”

Section: Discussionmentioning

confidence: 99%

Consequences of Hybridization in Mammals: A Systematic Review

Adavoudi¹,

Pilot²

2021

Genes

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Hybridization, defined as breeding between two distinct taxonomic units, can have an important effect on the evolutionary patterns in cross-breeding taxa. Although interspecific hybridization has frequently been considered as a maladaptive process, which threatens species genetic integrity and survival via genetic swamping and outbreeding depression, in some cases hybridization can introduce novel adaptive variation and increase fitness. Most studies to date focused on documenting hybridization events and analyzing their causes, while relatively little is known about the consequences of hybridization and its impact on the parental species. To address this knowledge gap, we conducted a systematic review of studies on hybridization in mammals published in 2010–2021, and identified 115 relevant studies. Of 13 categories of hybridization consequences described in these studies, the most common negative consequence (21% of studies) was genetic swamping and the most common positive consequence (8%) was the gain of novel adaptive variation. The total frequency of negative consequences (49%) was higher than positive (13%) and neutral (38%) consequences. These frequencies are biased by the detection possibilities of microsatellite loci, the most common genetic markers used in the papers assessed. As negative outcomes are typically easier to demonstrate than positive ones (e.g., extinction vs hybrid speciation), they may be over-represented in publications. Transition towards genomic studies involving both neutral and adaptive variation will provide a better insight into the real impacts of hybridization.

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Section: Discussionmentioning

confidence: 99%

Consequences of Hybridization in Mammals: A Systematic Review

Adavoudi¹,

Pilot²

2021

Genes

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“…Although the number of whole genomes available for nonmodel organisms has grown dramatically, mitochondrial DNA (mtDNA) remains a cornerstone for many areas of research, including species diversification dynamics, phylogenetics, and conservation genetics (Cardeñosa et al, 2021; Flores‐Manzanero et al, 2022; Reese et al, 2020; Schmidt et al, 2018; Serrao et al, 2018), especially for study species from which high‐quality tissue samples cannot be easily obtained. Difficulties with invasive sampling for high‐quality tissues or blood include practical issues with trapping large‐bodied, arboreal, or marine animals, as well as ethical considerations, such as risks to the animal and to researchers (Aristizabal Duque et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…Mitochondrial markers and genomes are especially useful for species identification and delimitation (Reese et al, 2020), for assessing population structure (Flores‐Manzanero et al, 2022; Gagneux et al, 1999; Phukuntsi et al, 2021; Serrao et al, 2018; Skovrind et al, 2021), for assessing introgression and admixture (Makhov et al, 2021; Malukiewicz et al, 2021), for monitoring of species assemblages using environmental DNA (Barnes & Turner, 2016; Thomsen & Willerslev, 2015), and for identifying the origin of animals found in wild meat markets and the illegal pet trade (Cardeñosa et al, 2021; Maligana et al, 2020; Russello et al, 2008). However, many of these methods are reliant on databases from which sequences can be integrated and against which results can be compared, and which are often incomplete (Curry et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…Mitochondrial markers and genomes are especially useful for species identification and delimitation (Reese et al, 2020), for assessing population structure (Flores-Manzanero et al, 2022;Gagneux et al, 1999;Phukuntsi et al, 2021;Serrao et al, 2018;Skovrind et al, 2021), for assessing introgression and admixture (Makhov et al, 2021;Malukiewicz et al, 2021), for monitoring of species assemblages using environmental DNA (Barnes & Turner, 2016;Thomsen & Willerslev, 2015), and for identifying the origin Handling Editor: David Coltman phylogeny based on these samples along with additional published platyrrhine mitogenomes, and use this to assess support for the long-standing riverine barrier hypothesis (RBH), which proposes that river formation was a major driver of speciation in Amazonian primates. Along the Amazon, Negro, and Madeira rivers, we found mixed support for the RBH.…”

Section: Introductionmentioning

confidence: 99%

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Two hundred and five newly assembled mitogenomes provide mixed evidence for rivers as drivers of speciation for Amazonian primates

et al. 2022

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Mitochondrial DNA remains a cornerstone for molecular ecology, especially for study species from which high-quality tissue samples cannot be easily obtained. Methods using mitochondrial markers are usually reliant on reference databases, but these are often incomplete. Furthermore, available mitochondrial genomes often lack crucial metadata, such as sampling location, limiting their utility for many analyses. Here, we assembled 205 new mitochondrial genomes for platyrrhine primates, most from the Amazon and with known sampling locations. We present a dated mitogenomic

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“…The largest native vertebrate predators are the endemic pygmy raccoon ( Procyon pygmaeus ) and Cozumel coati ( Nasua nelsoni ), both critically endangered, and the endemic roadside hawk ( Rupornis magnirostris gracilis ) (Cuarón, 2009; Flores‐Manzanero et al . 2021). There are, however, established populations of introduced (stray and feral) domestic cats and dogs and a significant population of introduced boas ( Boa imperator ; Martínez‐Morales & Cuarón, 1999; Suárez‐Atilano et al .…”

Section: Figurementioning

confidence: 99%