Co-exposure to foodborne and waterborne ZnO nanoparticles in aquatic sediment environments enhances DNA damage and stress gene expression in freshwater Asian clam Corbicula fluminea

2020 ◽  
Vol 7 (4) ◽  
pp. 1252-1265
Author(s):  
Chi-Wei Huang ◽  
Chun-Han Chang ◽  
Shang-Wei Li ◽  
Pei-Ling Yen ◽  
Vivian Hsiu-Chuan Liao
Keyword(s):  
Gene Expression ◽  
Dna Damage ◽  
Zno Nanoparticles ◽  
Corbicula Fluminea ◽  
Asian Clam ◽  
Stress Genes ◽  
Genes Expression ◽  
Clam Corbicula ◽  
Aquatic Sediment ◽  
Stress Gene

Co-exposure to foodborne and waterborne ZnO nanoparticles in aquatic sediment environments increases mortality, Zn bioaccumulation, stress genes expression, and DNA damage in freshwater Asian clam Corbicula fluminea.

scholarly journals Dissecting the chromosome-level genome of the Asian Clam (Corbicula fluminea)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Tongqing Zhang ◽  
Jiawen Yin ◽  
Shengkai Tang ◽  
Daming Li ◽  
Xiankun Gu ◽  
...  
Keyword(s):  
De Novo ◽  
Corbicula Fluminea ◽  
Gene Families ◽  
Ruditapes Philippinarum ◽  
Genomic Sequences ◽  
Future Research ◽  
Asian Clam ◽  
Sequencing Technologies ◽  
East And Southeast Asia ◽  
Clam Corbicula

AbstractThe Asian Clam (Corbicula fluminea) is a valuable commercial and medicinal bivalve, which is widely distributed in East and Southeast Asia. As a natural nutrient source, the clam is rich in protein, amino acids, and microelements. The genome of C. fluminea has not yet been characterized; therefore, genome-assisted breeding and improvements cannot yet be implemented. In this work, we present a de novo chromosome-scale genome assembly of C. fluminea using PacBio and Hi-C sequencing technologies. The assembled genome comprised 4728 contigs, with a contig N50 of 521.06 Kb, and 1,215 scaffolds with a scaffold N50 of 70.62 Mb. More than 1.51 Gb (99.17%) of genomic sequences were anchored to 18 chromosomes, of which 1.40 Gb (92.81%) of genomic sequences were ordered and oriented. The genome contains 38,841 coding genes, 32,591 (83.91%) of which were annotated in at least one functional database. Compared with related species, C. fluminea had 851 expanded gene families and 191 contracted gene families. The phylogenetic tree showed that C. fluminea diverged from Ruditapes philippinarum, ~ 228.89 million years ago (Mya), and the genomes of C. fluminea and R. philippinarum shared 244 syntenic blocks. Additionally, we identified 2 MITF members and 99 NLRP members in C. fluminea genome. The high-quality and chromosomal Asian Clam genome will be a valuable resource for a range of development and breeding studies of C. fluminea in future research.

scholarly journals Smoke on the Water: Comparative Assessment of Combined Thermal Shock Treatments for Control of Invasive Asian Clam, Corbicula fluminea

2021 ◽  
Author(s):  
Neil E. Coughlan ◽  
Ross N. Cuthbert ◽  
Eoghan M. Cunningham ◽  
Stephen Potts ◽  
Diarmuid McSweeney ◽  
...  
Keyword(s):  
Thermal Shock ◽  
High Intensity ◽  
Corbicula Fluminea ◽  
Freshwater Ecosystems ◽  
Thermal Treatments ◽  
Dry Ice ◽  
Open Flame ◽  
Asian Clam ◽  
Clam Corbicula ◽  
Expensive Process

AbstractSuppression of established populations of invasive alien species can be a complex and expensive process, which is frequently unsuccessful. The Asian clam, Corbicula fluminea (Müller, 1774), is considered a high impact invader that can adversely alter freshwater ecosystems and decrease their socioeconomic value. To date, C. fluminea continues to spread and persist within freshwater environments worldwide, despite repeated management attempts to prevent dispersal and suppress established populations. As extensive C. fluminea beds can often become exposed during low-water conditions, the direct application of hot or cold thermal shock treatments has been proposed as suitable mechanism for their control. Further, mechanical substrate disturbance may enhance the efficacy of thermal shock treatments by facilitating exposures to multiple layers of buried clams. In the present study, we advanced these methods by assessing combined applications of both hot and cold thermal shock treatments for control of C. fluminea, using steam spray (≥100 °C; 350 kPa), low- or high-intensity open-flame burns (~1000 °C) and dry ice (−78 °C). In a direct comparison of raking combined with hot thermal shock applications, both steam and high-intensity open-flame treatments tended to be most effective, especially following multiple applications. In addition, when hot thermal treatments are followed by a final cold shock (i.e. dry ice), steam treatments tended to be most effective. Further, when dry ice was applied either alone or prior to an application of a hot shock treatment, substantial if not complete C. fluminea mortality was observed. Overall, this study demonstrated that combined applications of hot and cold thermal shock treatments, applied following the disruption of the substrate, can substantially increase C. fluminea mortality compared to separate hot or cold treatments.

Veligers of the invasive Asian clam Corbicula fluminea in the Columbia River Basin: Broadscale distribution, abundance, and ecological associations

2017 ◽  
Vol 33 (3) ◽  
pp. 234-248 ◽  
Author(s):  
Whitney Hassett ◽  
Stephen M. Bollens ◽  
Timothy D. Counihan ◽  
Gretchen Rollwagen-Bollens ◽  
Julie Zimmerman ◽  
...  
Keyword(s):  
River Basin ◽  
Columbia River ◽  
Corbicula Fluminea ◽  
Columbia River Basin ◽  
Asian Clam ◽  
Clam Corbicula ◽  
Ecological Associations

scholarly journals Palatability of the Asian clam Corbicula fluminea (Müller 1774) in an invaded system

Hydrobiologia ◽  
2017 ◽  
Vol 810 (1) ◽  
pp. 97-108 ◽  
Author(s):  
P. S. Castro ◽  
M. I. Ilarri ◽  
V. Modesto ◽  
C. Antunes ◽  
R. Sousa
Keyword(s):  
Corbicula Fluminea ◽  
Asian Clam ◽  
Clam Corbicula

scholarly journals Effects of Upper-Limit Water Temperatures on the Dispersal of the Asian Clam Corbicula fluminea

PLoS ONE ◽  
2012 ◽  
Vol 7 (10) ◽  
pp. e46635 ◽  
Author(s):  
Inês Correia Rosa ◽  
Joana Luísa Pereira ◽  
Raquel Costa ◽  
Fernando Gonçalves ◽  
Robert Prezant
Keyword(s):  
Corbicula Fluminea ◽  
Asian Clam ◽  
Upper Limit ◽  
Clam Corbicula
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