TAIWAN 2013

Program

Tropical Deep-Sea Benthos (ex MUSORSTOM)

General information

Heads of mission

Chan Tin-Yam (Ocean Researcher 3)
Chen Wei-jen (Ocean Researcher 3)

Date and place of departure

20/05/2013

Date and place of arrival

30/05/2013

Leg	Date of departure	Date of arrival	Departure	Arrival	Ship
Ocean Researcher 3	20/05/2013	21/05/2013			Ocean Researcher 3
Ocean Researcher 1	27/05/2013	30/05/2013			Ocean Researcher 1

Goals :

Works :

Thanks :

Bibliography (8) [+] [-]

Export the bibliographies

Abdelkrim J., Aznar-cormano L., Fedosov A.E., Kantor Y.I., Lozouet P., Phuong M.A., Zaharias P. & Puillandre N. 2018. Exon-Capture-Based Phylogeny and Diversification of the Venomous Gastropods (Neogastropoda, Conoidea), in Vidal N.(Ed.), Molecular Biology and Evolution 35(10): 2355-2374. DOI:10.1093/molbev/msy144
Abstract [+] [-]
Transcriptome-based exon capture methods provide an approach to recover several hundred markers from genomic DNA, allowing for robust phylogenetic estimation at deep timescales. We applied this method to a highly diverse group of venomous marine snails, Conoidea, for which published phylogenetic trees remain mostly unresolved for the deeper nodes. We targeted 850 protein coding genes (678,322 bp) in ca. 120 samples, spanning all (except one) known families of Conoidea and a broad selection of non-Conoidea neogastropods. The capture was successful for most samples, although capture efﬁciency decreased when DNA libraries were of insufﬁcient quality and/or quantity (dried samples or low starting DNA concentration) and when targeting the most divergent lineages. An average of 75.4% of proteins was recovered, and the resulting tree, reconstructed using both supermatrix (IQ-tree) and supertree (Astral-II, combined with the Weighted Statistical Binning method) approaches, are almost fully supported. A reconstructed fossil-calibrated tree dates the origin of Conoidea to the Lower Cretaceous. We provide descriptions for two new families. The phylogeny revealed in this study provides a robust framework to reinterpret changes in Conoidea anatomy through time. Finally, we used the phylogeny to test the impact of the venom gland and radular type on diversiﬁcation rates. Our analyses revealed that repeated losses of the venom gland had no effect on diversiﬁcation rates, while families with a breadth of radula types showed increases in diversiﬁcation rates, thus suggesting that trophic ecology may have an impact on the evolution of Conoidea.

Accessible surveys cited (23) [+] [-]
ATIMO VATAE, AURORA 2007, BIOPAPUA, CEAMARC-AA, CONCALIS, Restricted, DongSha 2014, EXBODI, GUYANE 2014, ILES DU SALUT, INHACA 2011, KARUBENTHOS 2012, KAVIENG 2014, MAINBAZA, NORFOLK 2, NanHai 2014, PANGLAO 2005, PAPUA NIUGINI, Restricted, SALOMONBOA 3, TAIWAN 2013, TERRASSES, Restricted

Associated collection codes: IM (Molluscs)
Chen J.N., Samadi S. & Chen W.J. 2018. Rhodopsin gene evolution in early teleost fishes. PLOS ONE 13(11): e0206918. DOI:10.1371/journal.pone.0206918
Abstract [+] [-]
Rhodopsin mediates an essential step in image capture and is tightly associated with visual adaptations of aquatic organisms, especially species that live in dim light environments (e.g., the deep sea). The rh1 gene encoding rhodopsin was formerly considered a singlecopy gene in genomes of vertebrates, but increasing exceptional cases have been found in teleost fish species. The main objective of this study was to determine to what extent the visual adaptation of teleosts might have been shaped by the duplication and loss of rh1 genes. For that purpose, homologous rh1/rh1-like sequences in genomes of ray-finned fishes from a wide taxonomic range were explored using a PCR-based method, data mining of public genetic/genomic databases, and subsequent phylogenomic analyses of the retrieved sequences. We show that a second copy of the fish-specific intron-less rh1 is present in the genomes of most anguillids (Elopomorpha), Hiodon alosoides (Osteoglossomorpha), and several clupeocephalan lineages. The phylogenetic analysis and comparisons of alternative scenarios for putative events of gene duplication and loss suggested that fish rh1 was likely duplicated twice during the early evolutionary history of teleosts, with one event coinciding with the hypothesized fish-specific genome duplication and the other in the common ancestor of the Clupeocephala. After these gene duplication events, duplicated genes were maintained in several teleost lineages, whereas some were secondarily lost in specific lineages. Alternative evolutionary schemes of rh1 and comparison with previous studies of gene evolution are also reviewed.

Accessible surveys cited (5) [+] [-]
EXBODI, NanHai 2014, PAPUA NIUGINI, TAIWAN 2013, ZhongSha 2015

Associated collection codes: IC (Ichthyology)
Dijkstra H.H. & Maestrati P. 2017. New species and new records of littoral and bathyal living Pectinoidea (Bivalvia: Propeamussiidae, Cyclochlamydidae, Pectinidae) from the western and southwestern Pacific. Zoosystema 39(4): 473-485. DOI:10.5252/z2017n4a3
Accessible surveys cited (13) [+] [-]
BIOCAL, BIOPAPUA, BORDAU 1, DongSha 2014, GEMINI, KARUBAR, KAVIENG 2014, MADEEP, MUSORSTOM 5, NanHai 2014, PAPUA NIUGINI, TAIWAN 2013, ZhongSha 2015

Associated collection codes: IM (Molluscs)
Kantor Y.I., Puillandre N. & Bouchet P. 2020. The challenge of integrative taxonomy of rare, deep-water gastropods: the genus Exilia (Neogastropoda: Turbinelloidea: Ptychatractidae). Journal of Molluscan Studies 86: 120-138. DOI:10.1093/mollus/eyz037
Abstract [+] [-]
According to a recent taxonomic revision by Kantor et al. (2001), the neogastropod genus Exilia Conrad, 1860, comprises ten mostly rare species that live at depths between 200 and 2000 m. Adult Exilia measure between 30 and 90 mm in shell length, and the genus is mostly represented in museum collections by empty shells. The abundance of this genus is low in the wild, but recent expeditions organized by the Muséum national d’Histoire naturelle have yielded several dozen specimens. These new collections include samples preserved for molecular studies. Here, we present the results of the ﬁrst molecular systematic study of Exilia. Our aim was to investigate the species limits proposed by Kantor et al. (2001) on the basis of shell and anatomical characters. Analysis of DNA sequence data for the cytochrome c oxidase I gene suggests that Exilia hilgendorﬁ, previously considered to be a single, polymorphic and broadly distributed species, is a complex of at least six species (four of which we sequenced). Two of these species, Exilia cognata n. sp. and E. fedosovi n. sp., are described as new to science. Exilia gracilior, E. claydoni and E. prellei are resurrected from the synonymy of Exilia hilgendorﬁ; of these three, only the last was sequenced. Exilia vagrans is a welldeﬁned taxon, but our molecular systematic data shows that it consists of two distinct species, which occur sympatrically off Taiwan and are strikingly similar in shell and radular morphology; due to the absence of DNA sequence data from the type locality of E. vagrans (Vanuatu), it is unclear to which of these two species the name would apply. Exilia karukera n. sp., which is conchologically very similar to E. vagrans, was discovered off Guadeloupe, represents the ﬁrst record of the genus from the Atlantic. For E. elegans, which was previously known only from a single shell, we provide new data including new distributional records (South Africa and the Mozambique Channel), details of the radula and DNA sequence data.

Accessible surveys cited (13) [+] [-]
ATIMO VATAE, AURORA 2007, DongSha 2014, KANACONO, KANADEEP, KARUBENTHOS 2, MAINBAZA, MIRIKY, NanHai 2014, SALOMON 2, SALOMONBOA 3, TAIWAN 2013, TARASOC

Associated collection codes: IM (Molluscs)
Koch M., Ďuriš Z., Huang J. & Chan T. 2014. First report of the swimming crab Ovalipes iridescens (Miers, 1886) (Brachyura, Portunidae) from Taiwan. Crustaceana 87(14): 1640-1647. DOI:10.1163/15685403-00003386
Abstract [+] [-]
The portunid crab Ovalipes iridescens (Miers, 1886) is reported for the first time from the marine waters of Taiwan, and is just the second Ovalipes species known from this region. The only previously known Ovalipes species from Taiwan is a commercially-used species, Ovalipes punctatus (De Haan, 1833). The present study provides morphological and distributional data, and discusses the variability of the external morphology. The colour pattern of the body and the shape of the male gonopods of the newly recorded O. iridescens are illustrated.

Accessible surveys cited (1) [+] [-]
TAIWAN 2013

Associated collection codes: IU (Crustaceans)
Pante E., France S.C., Gey D., Cruaud C. & Samadi S. 2015. An inter-ocean comparison of coral endemism on seamounts: the case of Chrysogorgia. Journal of Biogeography 42(10): 1907-1918. DOI:10.1111/jbi.12564
Accessible surveys cited (10) [+] [-]
BIOPAPUA, EXBODI, MADEEP, NORFOLK 2, PAPUA NIUGINI, SALOMON 1, SALOMON 2, SMIB 4, TAIWAN 2013, TERRASSES

Associated collection codes: IK (Cnidaires)
Phuong M.A., Alfaro M.E., Mahardika G.N., Marwoto R.M., Prabowo R.E., Von rintelen T., Vogt P.W., Hendricks J.R. & Puillandre N. 2018. Lack of signal for the impact of venom gene diversity on speciation rates in cone snails. bioRxiv 359976. DOI:10.1101/359976
Abstract [+] [-]
Understanding why some groups of organisms are more diverse than others is a central goal in macroevolution. Evolvability, or lineages' intrinsic capacity for evolutionary change, is thought to influence disparities in species diversity across taxa. Over macroevolutionary time scales, clades that exhibit high evolvability are expected to have higher speciation rates. Cone snails (family: Conidae, >900 spp.) provide a unique opportunity to test this prediction because their venom genes can be used to characterize differences in evolvability between clades. Cone snails are carnivorous, use prey-specific venom (conotoxins) to capture prey, and the genes that encode venom are known and diversify through gene duplication. Theory predicts that higher gene diversity confers a greater potential to generate novel phenotypes for specialization and adaptation. Therefore, if conotoxin gene diversity gives rise to varying levels of evolvability, conotoxin gene diversity should be coupled with macroevolutionary speciation rates. We applied exon capture techniques to recover phylogenetic markers and conotoxin loci across 314 species, the largest venom discovery effort in a single study. We paired a reconstructed timetree using 12 fossil calibrations with species-specific estimates of conotoxin gene diversity and used trait-dependent diversification methods to test the impact of evolvability on diversification patterns. Surprisingly, did not detect any signal for the relationship between conotoxin gene diversity and speciation rates, suggesting that venom evolution may not be the rate-limiting factor controlling diversification dynamics in Conidae. Comparative analyses showed some signal for the impact of diet and larval dispersal strategy on diversification patterns, though whether or not we detected a signal depended on the dataset and the method. If our results remain true with increased sampling in future studies, they suggest that the rapid evolution of Conidae venom may cause other factors to become more critical to diversification, such as ecological opportunity or traits that promote isolation among lineages.

Accessible surveys cited (25) [+] [-]
ATIMO VATAE, AURORA 2007, BIOPAPUA, CONCALIS, EBISCO, EXBODI, GUYANE 2014, INHACA 2011, KARUBENTHOS 2, KARUBENTHOS 2012, KAVIENG 2014, MADEEP, MAINBAZA, MIRIKY, NORFOLK 2, NanHai 2014, Restricted, PANGLAO 2004, PANGLAO 2005, PAPUA NIUGINI, SALOMONBOA 3, SANTO 2006, TAIWAN 2013, TERRASSES, Restricted

Associated collection codes: IM (Molluscs)
Zaharias P., Kantor Y.I., Fedosov A.E., Criscione F., Hallan A., Kano Y., Bardin J. & Puillandre N. 2020. Just the once will not hurt: DNA suggests species lumping over two oceans in deep-sea snails (Cryptogemma). Zoological Journal of the Linnean Society 190(2): 532-557. DOI:10.1093/zoolinnean/zlaa010
Abstract [+] [-]
Abstract The practice of species delimitation using molecular data commonly leads to the revealing of species complexes and an increase in the number of delimited species. In a few instances, however, DNA-based taxonomy has led to lumping together of previously described species. Here, we delimit species in the genus Cryptogemma (Gastropoda: Conoidea: Turridae), a group of deep-sea snails with a wide geographical distribution, primarily by using the mitochondrial COI gene. Three approaches of species delimitation (ABGD, mPTP and GMYC) were applied to define species partitions. All approaches resulted in eight species. According to previous taxonomic studies and shell morphology, 23 available names potentially apply to the eight Cryptogemma species that were recognized herein. Shell morphometrics, radular characters and geographical and bathymetric distributions were used to link type specimens to these delimited species. In all, 23 of these available names are here attributed to seven species, resulting in 16 synonymizations, and one species is described as new: Cryptogemma powelli sp. nov. We discuss the possible reasons underlying the apparent overdescription of species within Cryptogemma, which is shown here to constitute a rare case of DNA-based species lumping in the hyper-diversified superfamily Conoidea.

Accessible surveys cited (25) [+] [-]
ATIMO VATAE, AURORA 2007, BIOMAGLO, BIOPAPUA, CONCALIS, DongSha 2014, EBISCO, EXBODI, GUYANE 2014, KANACONO, KANADEEP, KAVIENG 2014, MADEEP, MAINBAZA, MIRIKY, NORFOLK 2, NanHai 2014, PANGLAO 2004, PAPUA NIUGINI, SALOMON 2, SALOMONBOA 3, TAIWAN 2013, TARASOC, TERRASSES, ZhongSha 2015

Associated collection codes: IM (Molluscs)

List of documents

Google Earth: Stations TAIWAN 2013, Google earth

List of photos

List of participants

Detail :

: Barazer, Jean-François ( Genavir); Maître d'équipage; Chan, Tin-Yam (Carcinologie, National Taiwan Ocean University); Chef de mission; Chang, Su-Ching; Chen, Wei-jen (Ichtyologie, National Taiwan University); Chef de mission; Corbari, Laure (Carcinologie, Muséum national d'Histoire naturelle); Héros, Virginie (Malacologie, Muséum national d'Histoire naturelle); Lee, Hsin (Malacologie, National Taiwan University); Lozouet, Pierre (Malacologie, Muséum national d'Histoire naturelle); Samadi, Sarah (Biologie évolutive, Muséum national d'Histoire naturelle); Tshudy, Dale; Tu, Tzu-Hsuan; Wang, Teng-Wei

Stations map

GoogleEarth file (.kml)

List of stations

Station/Gathering	Latitude	Longitude	Date	Depths
CP4083	22°18'N	120°07'E	20130520 20/05/2013	688-747 m
CP4084	22°13'N	120°00'E	20130520 20/05/2013	976-1075 m
CP4085	22°13'N	120°25'E	20130521 21/05/2013	286-347 m
CP4086	22°12'N	120°24'E	20130521 21/05/2013	343-399 m
CP4087	22°11'N	120°22'E	20130521 21/05/2013	387-510 m
CP4088	22°11'N	120°23'E	20130521 21/05/2013	372-436 m
CP4089	22°13'N	120°25'E	20130527 27/05/2013	310-330 m
CP4090	22°13'N	120°23'E	20130527 27/05/2013	329-371 m
CP4091	22°14'N	119°59'E	20130527 27/05/2013	994-974 m
CP4092	22°19'N	121°05'E	20130528 28/05/2013	1107-1170 m
CP4093	22°15'N	121°04'E	20130528 28/05/2013	1187-1202 m
CP4094	22°11'N	121°05'E	20130528 28/05/2013	1213-1233 m
DW4095	21°12'N	121°33'E	20130529 29/05/2013	517-573 m
DW4096	21°13'N	121°33'E	20130529 29/05/2013	519-563 m
CP4098	21°47'N	120°39'E	20130530 30/05/2013	953-891 m
DW4097	21°47'N	120°39'E	20130530 30/05/2013	850-908 m

Taxonomy by access

Class	Access	Number of reports