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1.
Gene ; 658: 54-62, 2018 Jun 05.
Artículo en Inglés | MEDLINE | ID: mdl-29524581

RESUMEN

Crassadoma gigantea is an important commercial marine bivalve species in Baja California and Mexico. In this study, we have applied RNA-Seq technology to profile the transcriptome of the C. gigantea for the first time. A total of 80,832,518 raw reads were produced from a Illumina HiSeq4000 platform, and 77,306,198 (95.64%) clean reads were generated after trimming the adaptor sequences. The transcriptome assembled into 158,855 transcripts with an N50 size of 1995 bp and an average size of 1008 bp. A number of DNA repair related genes, such as MSH3, EGF, TGF, IGF, FGF, encoding different groups of growth factors were found in the transcriptome data of C. gigantean. In addition, immune related genes Toll-like receptor (TLR) including TLR1, TLR2, TLR3, TLR4, TLR5, TLR6, TLR7, TLR8, and TLR9 was also observed in C. gigantean. A set of 12 polymorphic microsatellite loci were firstly developed and characterized in C. gigantea. The results show that the number of alleles and expected heterozygosity ranged from 3 to 9 and from 0.254 to 0.820, respectively. The average polymorphic information content was 0.790. These microsatellite loci will facilitate future studies of population structure and conservation genetics in this species.


Asunto(s)
Marcadores Genéticos , Anotación de Secuencia Molecular , Pectinidae/genética , Análisis de Secuencia de ADN/métodos , Transcriptoma , Animales , Bivalvos/genética , Bivalvos/metabolismo , Bases de Datos Genéticas , Perfilación de la Expresión Génica , Ontología de Genes , Secuenciación de Nucleótidos de Alto Rendimiento , Repeticiones de Microsatélite , Pectinidae/metabolismo
2.
Mitochondrial DNA B Resour ; 3(2): 827-828, 2018 Jul 27.
Artículo en Inglés | MEDLINE | ID: mdl-33474337

RESUMEN

In this study, the complete 18,495 bp mitochondrial genome was determined from Rock scallop (Crassadoma gigantea) using next-generation sequencing technology. The complete mitochondrial genome contained 12 protein-coding genes (PCGs), 2 ribosomal RNA genes, 23 transfer RNA genes, without ATP8 and D-loop, which was similar with most mitochondrial genomes of marine bivalve molluscs. Gene annotations, including gene order, genetic code, start and stop codons and codons bias, were identified. Phylogenetic tree was constructed using Neighbor-Joining (NJ) method based on the PCGs showed the present species clustered within the Pteriomorphia clade. This work should be of importance not only for the better understanding of the relationships within Pectinidae, but also for the development of useful genetic markers in Rock scallop aquaculture and restoration efforts.

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