筛选
科学数据
统计数据
共检索到29条 ,权限内显示50条;
Data from: Time-calibrated molecular phylogeny of pteropods
- 负责人:
- DOI:
- doi:10.5061/dryad.bp106
- 摘要:
- of Cytochrome Oxidase I, 28S, and 18S ribosomal rRNA sequences and a molecular clock calibrated using fossils and the estimated timing of the formation
Data from: Feasibility of nuclear ribosomal region ITS1 over ITS2 in barcoding taxonomically challenging genera of subtribe Cassiinae (Fabaceae)
- 负责人:
- DOI:
- doi:10.5061/dryad.64fg4
- 摘要:
- Premise of the Study The internal transcribed spacer (ITS) region is situated between 18S and 26S in a polycistronic rRNA precursor transcript
Data from: Coral feeding on microalgae assessed with molecular trophic markers
- 负责人:
- DOI:
- doi:10.5061/dryad.3kf75
- 摘要:
- and Oculina arbuscula. Herbivory was assessed by end-point PCR amplification of algae-specific 18S rRNA gene fragments purified from coral tissue genomic DNA
Data from: Metabarcoding reveals environmental factors influencing spatio-temporal variation in pelagic micro-eukaryotes
- 负责人:
- DOI:
- doi:10.5061/dryad.442dv
- 摘要:
- Marine environments harbour a vast diversity of micro-eukaryotic organisms (protists and other small eukaryotes) that play important roles in structuring marine ecosystems. However, micro-eukaryote diversity is not well understood. Likewise, knowledge is limited regarding micro-eukaryote spatial and seasonal distribution, especially over long temporal scales. Given the importance of this group for mobilizing energy from lower trophic levels near the base of the food chain to larger organisms, assessing community stability, diversity and resilience is important to understand ecosystem health. Herein, we use a metabarcoding approach to examine pelagic micro-eukaryote communities over a 2.5-year time series. Bimonthly surface sampling (July 2009 to December 2011) was conducted at four locations within Mobile Bay (Bay) and along the Alabama continental shelf (Shelf). Alpha-diversity only showed significant differences in Shelf sites, with the greatest differences observed between summer and winter. Beta-diversity showed significant differences in community composition in relation to season and the Bay was dominated by diatoms, while the Shelf was characterized by dinoflagellates and copepods. The northern Gulf of Mexico is heavily influenced by the Mobile River Basin, which brings low-salinity nutrient-rich water mostly during winter and spring. Community composition was correlated with salinity, temperature and dissolved silicate. However, species interactions (e.g. predation and parasitism) may also contribute to the observed variation, especially on the Shelf, which warrants further exploration. Metabarcoding revealed clear patterns in surface pelagic micro-eukaryote communities that were consistent over multiple years, demonstrating how these techniques could be greatly beneficial to ecological monitoring and management over temporal scales.
Data from: Diet and trophic interactions of a circumglobally significant gelatinous marine zooplankter, Dolioletta gegenbauri (Uljanin, 1884)
- 负责人:
- Frischer, Marc
- 关键词:
- Doliolid Pelagic Tunicate Selective Feeding qPCR South Atlantic Bight Next Generation Sequencing
- DOI:
- doi:10.5061/dryad.99p2308
- 摘要:
- an 18S rRNA amplicon metabarcoding approach to identify the diet of captive-fed and wild-caught D. gegenbauri on the mid-continental shelf
Data from: A reconsideration of the classification of the spider infraorder Mygalomorphae based on three nuclear genes and morphology (Arachnida: Araneae)
- 负责人:
- DOI:
- doi:10.5061/dryad.7sq2j
- 摘要:
- unresolved. METHODS AND FINDINGS: We report here a reevaluation of mygalomorph phylogeny using the rRNA genes 18S and 28S, the nuclear protein-coding gene EF
Data from: Chloroplast phylogenomic analysis of chlorophyte green algae identifies a novel lineage sister to the Sphaeropleales (Chlorophyceae)
- 负责人:
- 关键词:
- DOI:
- doi:10.5061/dryad.nh149
- 摘要:
- belong to the clade formed by the Chlamydomonadales (also called Volvocales) and Sphaeropleales. Although studies based on the nuclear 18S rRNA
Data from: Chloroplast phylogenomic analysis resolves deep-level relationships within the green algal class Trebouxiophyceae
- 负责人:
- DOI:
- doi:10.5061/dryad.q4432
- 摘要:
- among the major trebouxiophycean lineages that have been previously recognized in nuclear-encoded 18S rRNA phylogenies. To this end, we use
Data from: Monogenean anchor morphometry: systematic value, phylogenetic signal, and evolution
- 负责人:
- DOI:
- doi:10.5061/dryad.50sg7
- 摘要:
- ng methods of geometric morphometrics. We used 28S rRNA, 18S rRNA, and ITS1 sequence data to infer a maximum likelihood phylogeny. We discriminated species usi