Two newly recorded invasive alien ascidians (Chordata, Tunicata, Ascidiacea) based on morphological and molecular phylogenetic analysis in Korea

Pyo, Jooyeon; Lee, Taekjun; Shin, Sook

doi:10.11646/zootaxa.3368.1.10

Cited by 19 publications

(12 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sequences obtained from GenBank and BOLD System databases were included in the analysis for comparison and as outgroups (Stach and Turbeville 2002;Kurabayashi et al 2003;Monniot et al 2011;Pyo et al 2012;López-Legentil et al 2015;Turon et al 2016). Once aligned using the BioEdit program 7.0.5.3 (Hall 1999), sequences were collapsed into haplotypes; the number of polymorphic sites and haplotypes were calculated using the program DNAsp 6 (Rozas et al 2017).…”

Section: Methodsmentioning

confidence: 99%

Not as clear as expected: what genetic data tell about Southern Hemisphere corellids (Ascidiacea: Phlebobranchia)

Alurralde

Aranzamendi

Taverna

et al. 2018

Journal of Natural History

View full text Add to dashboard Cite

The morphology of corellids (Ascidiacea) has led to numerous misidentifications and wrong taxonomic decisions over the last century. Paradoxically, the morphology has also enabled new species to be identified and ancient entities to be re-established in the Southern Hemisphere. There are many examples of the integration of morphological and molecular data leading to the same taxonomic conclusions, and therefore we aimed to analyse DNA sequences of the gene cytochrome oxidase subunit I of currently accepted species within Corellidae occurring in the Southern Hemisphere. Haplotype networks along with phylogenetic trees and genetic distances not only corroborate the distinction between Corella eumyota and Corella antarctica, but also separate the latter into two potential groups, one located in Terre Adélie and the other in the Antarctic Peninsula (AP). Furthermore, the C. antarctica group from the AP was closely related to the allied abyssal species, Corynascidia suhmi from Terre Adélie. Although the number of new sequences is reduced, our results are congruent with a long record of suspicion on the matter and stress the need for deeper and more extensive investigation of this ascidian family.

show abstract

Section: Methodsmentioning

confidence: 99%

Not as clear as expected: what genetic data tell about Southern Hemisphere corellids (Ascidiacea: Phlebobranchia)

Alurralde

Aranzamendi

Taverna

et al. 2018

Journal of Natural History

View full text Add to dashboard Cite

show abstract

“…To date, most studies have focused on cataloguing the exotic species observed in a given location or harbor (e.g. Arenas et al 2006 ; Callahan et al 2010 ; Carman et al 2010 ; Sephton et al 2011 ; Pyo et al 2012 ); while a surprisingly low number of studies have explored the links between these harbors, including patterns of species turnover (beta-diversity), harbor type (recreational, fishing, commercial or mixtures thereof), or temporal or geographic trends (e.g. Lambert and Lambert 2003 ; Cohen et al 2005 ; Grey 2009a ).…”

Section: Introductionmentioning

confidence: 99%

Harbor networks as introduction gateways: contrasting distribution patterns of native and introduced ascidians

et al. 2014

View full text Add to dashboard Cite

Harbors and marinas are well known gateways for species introductions in marine environments but little work has been done to ascertain relationships between species diversity, harbor type, and geographic distance to uncover patterns of secondary spread. Here, we sampled ascidians from 32 harbors along ca. 300 km of the NW Mediterranean coast and investigated patterns of distribution and spread related to harbor type (marina, fishing, commercial) and geographic location using multivariate techniques. In total, 28 ascidians were identified at the species level and another 9 at the genus level based on morphology and genetic barcoding. Eight species were assigned to introduced forms, 15 were given native status and 5 were classified as cryptogenic. Aplidium accarense was reported for the first time in the Mediterranean Sea and was especially abundant in 23 of the harbors. Introduced and cryptogenic species were abundant in most of the surveyed harbors, while native forms were rare and restricted to a few harbors. Significant differences in the distribution of ascidians according to harbor type and latitudinal position were observed. These differences were due to the distribution of introduced species. We obtained a significant correlation between geographic distance and ascidian composition, indicating that closely located harbors shared more ascidian species among them. This study showed that harbors act as dispersal strongholds for introduced species, with native species only appearing sporadically, and that harbor type and geographic location should also be considered when developing management plans to constrain the spread of non-indigenous species in highly urbanized coastlines.Electronic supplementary materialThe online version of this article (doi:10.1007/s10530-014-0821-z) contains supplementary material, which is available to authorized users.

show abstract

“…In South Korea, the species was recognized firstly in 2010 from cool-, mid-, and warm-temperate zones by Pyo et al (2012). However, we suggest the possibility in this paper that the Korean coastline was actually already inhabited by this species in the 1990s.…”

Section: Introductionmentioning

confidence: 59%

The Earliest Japanese records of the invasive European ascidian <i>Ascidiella aspersa</i> (Müller, 1776) (Urochordata: Ascidiidae) from Mutsu and Ago Bays, with a brief discussion of its invasion processes

Nishikawa

Yasuda

Murata³

et al. 2019

Sessile Org.

View full text Add to dashboard Cite

Study of the ascidian collection at the National Museum of Nature and Science, Tsukuba, revealed some Japanese specimens of the non-native ascidian, Ascidiella aspersa (Müller, 1776), collected in 2007 from both mid-temperate Oominato, Mutsu Bay, in the northernmost part of Honshû, and from warm-temperate Ago Bay, Kii Peninsula, middle Honshû. These specimens were collected one year earlier than the previous earliest Japanese record from cool-temperate Funka Bay, Hokkaido. Mutsu Bay has an international port, which can be assumed to be the invasion gateway for this ascidian from abroad. On the other hand, this ascidian may have arrived at Ago Bay by domestic transport because all of the bay's ports are strictly for domestic use under governmental regulations. A comparison of the publicly available sequences for the 18S rRNA gene among this species and its allies suggested the possibility that it inhabited Korean waters as far back as the late 1990s, and it entered Japanese waters from Korea through an as yet unknown international port(s).

show abstract

Two newly recorded invasive alien ascidians (Chordata, Tunicata, Ascidiacea) based on morphological and molecular phylogenetic analysis in Korea

Cited by 19 publications

References 50 publications

Not as clear as expected: what genetic data tell about Southern Hemisphere corellids (Ascidiacea: Phlebobranchia)

Not as clear as expected: what genetic data tell about Southern Hemisphere corellids (Ascidiacea: Phlebobranchia)

Harbor networks as introduction gateways: contrasting distribution patterns of native and introduced ascidians

The Earliest Japanese records of the invasive European ascidian <i>Ascidiella aspersa</i> (Müller, 1776) (Urochordata: Ascidiidae) from Mutsu and Ago Bays, with a brief discussion of its invasion processes

Contact Info

Product

Resources

About