Caracterizacion genetica de hibridos entre las especies Mytilus edulis platensis y Mytilus galloprovincialis (Mytilidae: Bivalvia) en la costa chilena

Valenzuela, Andrea; Astorga, Marcela; Oyarzún, Pablo A.; Toro, Jorge E.

doi:10.3856/vol44-issue1-fulltext-19

Cited by 5 publications

(4 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Toro, Castro, Ojeda, & Vergara, ) has been the subject of much debate due to discrepancies between studies; that is, it has been classified as M. edulis (e.g. Koehn, ) or as Mytilus galloprovincialis chilensis (Cárcamo, Comesaña, Winkler, & Sanjuan, 2005) using allozymes, as Mytilus edulis chilensis using nuclear DNA markers (Toro, ), as Mytilus chilensis using random amplified polymorphic DNAs (RAPDs; Toro, Innes, & Thompson, ) or nuclear DNA and mitochondrial DNA markers (Oyarzún, Toro, Cañete, & Gardner, ), as an SH lineage of Mytilus galloprovincialis or as a mixture of NH M. galloprovincialis , SH M. galloprovincialis , and M. edulis using a nuclear DNA marker (Westfall & Gardner, ), as Mytilus platensis using mitochondrial DNA markers (Astorga, Cardenas, & Vargas, ), as Mytilus edulis platensis as a subspecies of M. edulis using microsatellites (Valenzuela, Astorga, Oyarzún, & Toro, ) or upon published morphological and molecular data (Borsa, Rolland, & Daguin‐Thiébaut, ). Also, Mylitus planulatus (Lamarck, 1819), described in Albany (Australia), was a candidate to be the SH M. galloprovincialis lineage (e.g.…”

Section: Introductionmentioning

confidence: 99%

A biogeography‐based management for Mytilus chilensis: The genetic hodgepodge of Los Lagos versus the pristine hybrid zone of the Magellanic ecotone

Díaz‐Puente

Pita

Uribe

et al. 2020

Aquatic Conservation

View full text Add to dashboard Cite

This study was intended to identify mussel species from the Magellanic ecotone, quantifying interspecific hybridization within Mytilus and depicting the genetic architecture of Mytilus chilensis in its South Pacific range. The analysis comprises the sub‐Antarctic Magallanes Province as a rich ecotone of climates, ecosystems and admixed faunas embedded among the biogeographic regions of the Pacific, the Atlantic, and Antarctica. Highly conserved molecular sequences within species were used to identify species, and polymorphic microsatellites were used to calculate the genetic architecture of M. chilensis. The absence of the invasive species Mytilus galloprovincialis from the M. chilensis range clarifies previous doubts on its expansion southward from the Arauco Gulf. The ubiquitous presence of the typical Glu‐5′‐Me‐15/16 PAP allele of Mytilus trossulus in the Northern Hemisphere might come from hull biofouling, but rather it seems to be an ancient polymorphism conserved in M. chilensis as occurs in blue mussels from other regions of the Southern Hemisphere. There is a very limited connectivity (FST = 0.167) between two latitudinal gene pools of M. chilensis that are highly divergent in composition, architecture, and ecological relevance. Fifty years of aquaculture enhancement in Los Lagos explains its high diversity and genetic heterogeneity among patches, so its mussel management should seek a balance between exploitation and environmental sustainability. The Magellanic ecotone bears a pristine M. chilensis × Mytilus edulis platensis hybrid zone around the Southern Cone, larger (450 km) than previously thought. Such a hybrid zone permeates one of the last remaining wilderness areas in the world (Cape Horn Biosphere Reserve) and is a natural laboratory for addressing introgression, hybridization, and evolution of Mytilus spp. genomes in their last southern frontier.

show abstract

Section: Introductionmentioning

confidence: 99%

A biogeography‐based management for Mytilus chilensis: The genetic hodgepodge of Los Lagos versus the pristine hybrid zone of the Magellanic ecotone

Díaz‐Puente

Pita

Uribe

et al. 2020

Aquatic Conservation

View full text Add to dashboard Cite

show abstract

“…Analysis of mtDNA and nuclear DNA Me15/16 restriction fragment length polymorphisms (RFLP) revealed the occurrence of native M. chilensis and the alleged presence of the native Atlantic blue mussel M. edulis, Northern Hemisphere M. galloprovincialis , M. trossulus genes (not individuals) and hybrids ( M. chilensis × M. edulis ) in the region of the Strait of Magellan [ 66 ]. Recent studies also consider that M. chilensis should be named M. edulis platensis [ 59 , 67 ] or M. platensis [ 68 ]. A genetic analysis of Mytilus populations from Argentina and Uruguay using 30 enzyme loci and five DNA markers ( Glu - 5 , Fp - 1 , Its , CoIII and Mac - 1 ) showed that native Atlantic South American populations are closely related to North Atlantic M. edulis [ 69 ].…”

Section: Introductionmentioning

confidence: 99%

Single nucleotide polymorphisms in native South American Atlantic coast populations of smooth shelled mussels: hybridization with invasive European Mytilus galloprovincialis

2018

View full text Add to dashboard Cite

BackgroundThroughout the world, harvesting of mussels Mytilus spp. is based on the exploitation of natural populations and aquaculture. Aquaculture activities include transfers of spat and live adult mussels between various geographic locations, which may result in large-scale changes in the world distribution of Mytilus taxa. Mytilus taxa are morphologically similar and difficult to distinguish. In spite of much research on taxonomy, evolution and geographic distribution, the native Mytilus taxa of the Southern Hemisphere are poorly understood. Recently, single nucleotide polymorphisms (SNPs) have been used to clarify the taxonomic status of populations of smooth shelled mussels from the Pacific coast of South America. In this paper, we used a set of SNPs to characterize, for the first time, populations of smooth shelled mussels Mytilus from the Atlantic coast of South America.ResultsMytilus spp. samples were collected from eastern South America. Six reference samples from the Northern Hemisphere were used: Mytilus edulis from USA and Northern Ireland, Mytilus trossulus from Canada, and Mytilus galloprovincialis from Spain and Italy. Two other reference samples from the Southern Hemisphere were included: M. galloprovincialis from New Zealand and Mytilus chilensis from Chile. Fifty-five SNPs were successfully genotyped, of which 51 were polymorphic. Population genetic analyses using the STRUCTURE program revealed the clustering of eight populations from Argentina (Mytilus platensis) and the clustering of the sample from Ushuaia with M. chilensis from Chile. All individuals in the Puerto Madryn (Argentina) sample were identified as M. platensis × M. galloprovincialis F2 (88.89%) hybrids, except one that was classified as Mediterranean M. galloprovincialis. No F1 hybrids were observed.ConclusionsWe demonstrate that M. platensis (or Mytilus edulis platensis) and M. chilensis are distinct native taxa in South America, which indicates that the evolutionary histories of Mytilus taxa along the Atlantic and Pacific coasts differ. M. platensis is endangered by hybridization with M. galloprovincialis that was introduced from Europe into the Puerto Madryn area in Argentina, presumably by accidental introduction via ship traffic. We confirm the occurrence of a native M. chilensis population in southern Argentina on the coast of Patagonia.Electronic supplementary materialThe online version of this article (10.1186/s12711-018-0376-z) contains supplementary material, which is available to authorized users.

show abstract

“…The interaction between P. perna and M. galloprovincialis has already been reported to the African coast, where the two species live together (Bownes & McQuaid, 2006). However, hybridization cases such as those that occur on the Chilean coast can cause impact to other species (Valenzuela et al, 2016), as is the case in Venezuela with the introduction of another Mytilidae species [Perna viridis (Linnaeus, 1758)] in the early 1990s, and which has been competing strongly with the most abundant Mytilidae in the region (P. perna) (Rylander et al, 1996). Recently P. viridis was also introduced in Guanabara Bay, Rio de Janeiro, Brazil (Messano et al, 2019), which makes this scenario of frequent introductions of alien species and possible hybridizations increasingly worrying.…”

Section: Discussionmentioning

confidence: 90%

First record of the Mediterranean mussel Mytilus galloprovincialis (Bivalvia, Mytilidae) in Brazil

Belz

Simone

Júnior³

et al. 2020

Pap. Avulsos Zool.

View full text Add to dashboard Cite

The genus Mytilus comprises a large number of bivalve mollusk species distributed throughout the world and many of these species are considered invasive. In South America, many introductions of species of this genus have already taken place, including reports of hybridization between them. Now, the occurrence of the Mediterranean mussel Mytilus galloprovincialis is reported for the first time from the Brazilian coast. Several specimens of this mytilid were found in a shellfish growing areas in Florianópolis and Palhoça, Santa Catarina State, Brazil. Morphological analysis of the shells and molecular analysis through sequencing of the cytochrome oxidase subunit 1 (COI) confirmed the taxonomic identification. The species is known for its great invasive potential and can become a major environmental problem for seafood business and coastal communities, as it can compete and even hybridize with local species.

show abstract

Caracterizacion genetica de hibridos entre las especies Mytilus edulis platensis y Mytilus galloprovincialis (Mytilidae: Bivalvia) en la costa chilena

Cited by 5 publications

References 33 publications

A biogeography‐based management for Mytilus chilensis: The genetic hodgepodge of Los Lagos versus the pristine hybrid zone of the Magellanic ecotone

A biogeography‐based management for Mytilus chilensis: The genetic hodgepodge of Los Lagos versus the pristine hybrid zone of the Magellanic ecotone

Single nucleotide polymorphisms in native South American Atlantic coast populations of smooth shelled mussels: hybridization with invasive European Mytilus galloprovincialis

First record of the Mediterranean mussel Mytilus galloprovincialis (Bivalvia, Mytilidae) in Brazil

Contact Info

Product

Resources

About