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15 results for “Eptatretus”
Assembled "juvenile head region" transcriptome from the hagfish Eptatretus burgeri (NCBI GenBank Accession: SRX2541845)
<p>1) The raw reads were dwonloaded from NCBI GenBank (SRA run accession: (SRR5234495) with sratoolkit.</p> <p>2) The assembly was performed with Trinity with the folllowing parameters:</p> <p>Trinity --seqType fq --max_memory 100G --left eb-hf-head-region-SRR5234495/eb-hf-head-region-SRR5234495_1.fastq --right eb-hf-head-region-SRR5234495/eb-hf-head-region-SRR5234495_1.fastq --CPU 10 --output trinity-transcriptome-eb/</p> <p>3) ORFs were predeicted with TransDecoder with the following settings:</p> <p>TransDecoder.LongOrfs -t transcriptome-eb-hf-head-region.fasta</p> <p>TransDecoder.Predict -t transcriptome-eb-hf-head-region.fasta</p> <p> </p>
FIGURE 4. Myxinidocotyle species sclerotised male copulatory tubes. A. Myxinidocotyle eptatreti n in A new species of Myxinidocotyle (Monogenea: Acanthocotylidae: Myxinidocotylinae) from captive sixgill hagfish, Eptatretus hexatrema (Chordata: Myxinidae), with amendment of the subfamily diagnosis
FIGURE 4. Myxinidocotyle species sclerotised male copulatory tubes. A. Myxinidocotyle eptatreti n. sp. B. M. japonica. C. M. californica. Scale bars = 50 μm.
FIGURE 3. Myxinidocotyle eptatreti n in A new species of Myxinidocotyle (Monogenea: Acanthocotylidae: Myxinidocotylinae) from captive sixgill hagfish, Eptatretus hexatrema (Chordata: Myxinidae), with amendment of the subfamily diagnosis
FIGURE 3. Myxinidocotyle eptatreti n. sp. Reproductive organs, ventral view (male accessory gland cells omitted). Abbreviations: md, muscular portion of distal male accessory gland reservoir; me, Mehlis' glands; mgo, male genital opening; mgp, male genital pocket; o, ovary; oot, oötype; pv, proximal part of vagina; sr, seminal receptacle; sv, seminal vesicle; t, testis; up, uterine pore; ut, uterus; v, vagina; vd, vas deferens; vit, vitelline duct; vp, vaginal pore (other abbreviations as for Figures 1 and 2). Scale bar = 300 μm.
FIGURE 2. Myxinidocotyle eptatreti n in A new species of Myxinidocotyle (Monogenea: Acanthocotylidae: Myxinidocotylinae) from captive sixgill hagfish, Eptatretus hexatrema (Chordata: Myxinidae), with amendment of the subfamily diagnosis
FIGURE 2. Myxinidocotyle eptatreti n. sp. A. Marginal hook. B. Pharynx. C. Male accessory gland reservoirs with ducts. Abbreviations: dar, distal male accessory gland reservoir; du, ducts leading to male accessory gland reservoirs; eg, egg; mct, male copulatory tube; par, proximal male accessory gland reservoir (other abbreviations as for Figure 1). Scale bars: A. 15 μm, B. 100 μm, C. 200 μm.
FIGURE 1. Myxinidocotyle eptatreti n in A new species of Myxinidocotyle (Monogenea: Acanthocotylidae: Myxinidocotylinae) from captive sixgill hagfish, Eptatretus hexatrema (Chordata: Myxinidae), with amendment of the subfamily diagnosis
FIGURE 1. Myxinidocotyle eptatreti n. sp. Whole mount, ventral view. Abbreviations: ag, anterior gland; al, anterior lobe; cap, confluent adhesive protuberances; cent, central anterior protuberance; eb, excretory bladder; go, gland opening; ha, haptor; hg, haptoral gland; i, intestinal caecum; m, mouth; mag, field of male accessory gland cells; p, pharynx; pc, field of pigmented cells with granular appearance; pg, cluster of pharyngeal gland cells; pha, pseudohaptor; pp, pharyngeal papilla; rt, raised anterior portion of tegument; tgc, tegumental gland cells with ducts; tr, transverse ridge; vf, vitelline follicle. Scale bar = 500 μm.
FIGURE 4 in A new species of six-gilled hagfish (Myxinidae: Eptatretus) from the Lakshadweep Sea
FIGURE 4. Dentition of Eptatretus wadgensis sp. nov., holotype CMFRI DNR.: GC.1.1.1.1 (A. Anterior row of teeth B. Posterior row of teeth (left series) and palatine tooth (PL).
FIGURE 3 in A new species of six-gilled hagfish (Myxinidae: Eptatretus) from the Lakshadweep Sea
FIGURE 3. Anatomy of Eptatretus wadgensis sp. nov., Paratypes CMFRI DNR GC.1.1.1.4 Separated ventral aorta between 4th and 5th gill pouch. Branchial region (gill pouches (GP), median ventral aorta (MVA), separated ventral aorta (SVA), efferent branchial duct (EBD), dental muscle (DM), heart (H) and liver (L) (photo: K.R. Aju)
FIGURE 1 in A new species of six-gilled hagfish (Myxinidae: Eptatretus) from the Lakshadweep Sea
FIGURE 1. Known distribution of Eptatretus wadgensis sp. nov., based on the type series (represents holotype and represents paratypes)
FIGURE 2 in A new species of six-gilled hagfish (Myxinidae: Eptatretus) from the Lakshadweep Sea
FIGURE 2. (A) Holotype (B) Gill apertures (GA) Eptatretus wadgensis sp. nov., CMFRI DNR.: GC.1.1.1.1, 400mm in TL, fresh specimen (photo: K.R. Aju)
FIGURE 5 in A new species of six-gilled hagfish (Myxinidae: Eptatretus) from the Lakshadweep Sea
FIGURE 5. Bayesian inference (BI) phylogenetic tree from the partial mitochondrial sequences A. COI sequence of 18 Eptatretus species, 7 relatives and 3 outgroups B. 16S rRNA sequences of 19 Eptatretus species, 7 relatives and 3 outgroups.
Figure 5 from: Song YS, Kim J-K (2020) A new species of hagfish, Eptatretus wandoensis sp. nov. (Agnatha, Myxinidae), from the southwestern Sea of Korea. ZooKeys 926: 81-94. https://doi.org/10.3897/zookeys.926.48745
Figure 5 Phylogenetic tree of hagfishes based on mitochondrial DNA sequences, constructed with the Neighbor-joining (NJ) method using Kimura 2-parameter distances A mitochondrial DNA 16S rRNA sequences B mitochondrial DNA cytochrome c oxidase subunit I (COI) sequences. Numbers above tree branches are bootstrap values based on 1000 replicates. Scale bar represent nucleotide substitutions per site.
Figure 4 from: Song YS, Kim J-K (2020) A new species of hagfish, Eptatretus wandoensis sp. nov. (Agnatha, Myxinidae), from the southwestern Sea of Korea. ZooKeys 926: 81-94. https://doi.org/10.3897/zookeys.926.48745
Figure 4 Anatomical morphology of Eptatretus wandoensis sp. nov. PKU 62167. A palatine tooth, anterior unicusps (AUC) and posterior unicusps (PUC) B branchial region dissected, gill pouches (GP), median ventral aorta (MVA), separated ventral aorta (SVA), efferent branchial duct (EBD), pharyngocutaneous duct (PCD), dental muscle (DM), liver (L), and heart (H).
Figure 3 from: Song YS, Kim J-K (2020) A new species of hagfish, Eptatretus wandoensis sp. nov. (Agnatha, Myxinidae), from the southwestern Sea of Korea. ZooKeys 926: 81-94. https://doi.org/10.3897/zookeys.926.48745
Figure 3 Eptatretus wandoensis sp. nov. PKU 62167, prior to preservation A head dorsal view, white arrow indicates a white mid-dorsal line B head ventral view C gill apertures (GA) and pharyngocutaneous duct (PCD), note the location of GA and PCDD ventral view of body, black arrow indicates the ventral fin-fold (VFF) E dorsal region of body with a white mid-dorsal line.
Figure 2 from: Song YS, Kim J-K (2020) A new species of hagfish, Eptatretus wandoensis sp. nov. (Agnatha, Myxinidae), from the southwestern Sea of Korea. ZooKeys 926: 81-94. https://doi.org/10.3897/zookeys.926.48745
Figure 2 Overall view of Eptatretus wandoensis sp. nov., A holotype, PKU 62167, 292.0 mm in total length (TL) B paratype, PKU 62169, 202.0 mm TLC paratype, PKU 62171, 290.0 mm TLD paratype, PKU 62173, 275.0 mm TL, photographed prior to preservation. Scale bars: 1 mm.
Figure 1 from: Song YS, Kim J-K (2020) A new species of hagfish, Eptatretus wandoensis sp. nov. (Agnatha, Myxinidae), from the southwestern Sea of Korea. ZooKeys 926: 81-94. https://doi.org/10.3897/zookeys.926.48745
Figure 1 Sampling location of Eptatretus wandoensis sp. nov. in Korea.
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