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53 results for “Laticauda”
Fig. 3 in Laticauda frontalis (de Vis, 1905) and Laticauda saintgironsi n.sp. from Vanuatu and New Caledonia (Serpentes: Elapidae: Laticaudinae)- a New Lineage of Sea Kraits?
Fig. 3. (A) Dorsal view of holotype, AM R162999, of Laticauda saintgironsi from Porc-épic Island, Le Lagon, near Noumea, New Caledonia. (B) Ventral view of holotype, AM R162999, of Laticauda saintgironsi from Porc-épic Island, Le Lagon, near Noumea, New Caledonia.
Figure 2 in Rare or poorly known scorpions from Colombia. III. On the taxonomy and distribution of Rhopalurus laticauda Thorell, 1876 (Scorpiones: Buthidae), with description of a new species of the genus
Figure 2: Adult male holotype of Rhopalurus caribensis sp. n.: a) carapace and tergites; b) pedipalp; c) sternopectinal region; d) metasomal segments IV–V and telson, lateral view.
Figure 4 in Rare or poorly known scorpions from Colombia. III. On the taxonomy and distribution of Rhopalurus laticauda Thorell, 1876 (Scorpiones: Buthidae), with description of a new species of the genus
Figure 4: Adult female paratype of Rhopalurus caribensis sp. n. from Nazareth: a) carapace and tergites; b) pedipalp; c) movable finger, dorsal view; d) sternopectinal region; e) metasomal segments IV–V and telson, lateral view.
Fig. 1 in Laticauda frontalis (de Vis, 1905) and Laticauda saintgironsi n.sp. from Vanuatu and New Caledonia (Serpentes: Elapidae: Laticaudinae)- a New Lineage of Sea Kraits?
Fig. 1. Holotype, QM J202, of Platurus frontalis from "New Guinea".
Figure 1 in Rare or poorly known scorpions from Colombia. III. On the taxonomy and distribution of Rhopalurus laticauda Thorell, 1876 (Scorpiones: Buthidae), with description of a new species of the genus
Figure 1: Adult male holotype of Rhopalurus caribensis sp. n., entire dorsal view.
Figure 5 in Rare or poorly known scorpions from Colombia. III. On the taxonomy and distribution of Rhopalurus laticauda Thorell, 1876 (Scorpiones: Buthidae), with description of a new species of the genus
Figure 5: Juvenile male paratype of Rhopalurus caribensis sp. n. from Nazareth, entire dorsal view.
Horizontal transfer and subsequent explosive expansion of a DNA transposon in sea kraits (Laticauda)
<p><strong>Abstract</strong></p> <p>Transposable elements (TEs) are self replicating genetic sequences and are often described as important “drivers of evolution”. This driving force is because TEs promote genomic novelty by enabling rearrangement, and through exaptation as coding and regulatory elements. However, most TE insertions will be neutral or harmful, therefore host genomes have evolved machinery to supress TE expansion. Through horizontal transposon transfer (HTT) TEs can colonise new genomes, and since new hosts may not be able to shut them down, these TEs may proliferate rapidly. Here we describe HTT of the <em>Harbinger-Snek</em> DNA transposon into sea kraits (<em>Laticauda</em>), and its subsequent explosive expansion within <em>Laticauda</em> genomes. This HTT occurred following the divergence of <em>Laticauda</em> from terrestrial Australian elapids ~15-25 Mya. This has resulted in numerous insertions into introns and regulatory regions, with some insertions into exons which appear to have altered UTRs or added sequence to coding exons. <em>Harbinger-Snek</em> has rapidly expanded to make up 8-12% of <em>Laticauda</em> spp. genomes; this is the fastest known expansion of TEs in amniotes following HTT. Genomic changes caused by this rapid expansion may have contributed to adaptation to the amphibious-marine habitat.</p> <p><strong>Dataset</strong></p> <p>The deposited dataset contains scripts used in analysis, GFFs of the <em>Laticauda </em>genome gene annotations produced using Liftoff, repeat sequences of all <em>Harbinger-Snek variants and Harbinger-Snek</em>-like TEs, repeat library used in RepeatMasker repeat annotation, repeat annotation of <em>Laticauda, Notechis</em> and <em>Pseudonaja</em> genomes, screenshots of IGV showing RNASeq reads mapped to gene exons and UTRs containing <em>Harbinger-Snek</em> insertions, and all phylogenetic trees and the sequence data used in generating them.</p>
FIGURE 9. Osteological differences between Balitora chipkali and B in Balitora chipkali, a new species of stone loach (Teleostei: Balitoridae) from the northern Western Ghats of India, with a note on the distribution of B. laticauda
FIGURE 9. Osteological differences between Balitora chipkali and B. laticauda. (A) Neurocranium in lateral view, (B) infraorbital sensory canal in lateral view, (C) upper gill arch endoskeleton in dorsal view, (D) ventral gill-arch skeleton in dorsal view and hyoid bar and branchiostegal rays of in lateral view, (E) pectoral girdle in ventral view and (F) anal fin lateral view. Abbreviations: ACh, anterior ceratohyal; Cb5, ceratobranchials 5; Cl, cleithrum; IOC, infraorbital sensory canal; LE, lateral ethmoid; Pb2, pharyngobranchials 2; PCh, posterior ceratohyal; P–MR, proximal–middle radial; So, supraorbital.
FIGURE 4 in Balitora chipkali, a new species of stone loach (Teleostei: Balitoridae) from the northern Western Ghats of India, with a note on the distribution of B. laticauda
FIGURE 4. Balitora chipkali paratypes in life. (A) BNHS FWF 196 (29.0mm SL) and (B) WILD-15-PIS-252 (51.4mm SL).
FIGURE 1 in Balitora chipkali, a new species of stone loach (Teleostei: Balitoridae) from the northern Western Ghats of India, with a note on the distribution of B. laticauda
FIGURE 1. Balitora chipkali holotype (BNHS FWF 193, 47.7mm SL) in (A) lateral, (B) dorsal and (C) ventral view.
FIGURE 6 in Balitora chipkali, a new species of stone loach (Teleostei: Balitoridae) from the northern Western Ghats of India, with a note on the distribution of B. laticauda
FIGURE 6. Habitat at the type locality Ramnagar on Astoli River, Kali River system, Karnataka, India.
FIGURE 8 in Balitora chipkali, a new species of stone loach (Teleostei: Balitoridae) from the northern Western Ghats of India, with a note on the distribution of B. laticauda
FIGURE 8. Comparison of dorsal saddle shape and extent in (A) Balitora chipkali (holotype, 47.7mm SL), (B) B. laticauda (BNHS FWF 199, 46.2mm SL), (C) B. mysorensis (BNHS FWF 197, 72.7mm SL) and (D) B. jalpalli (paratype, WILD-12- PIS-025, 58.1mm SL).
FIGURE 2 in Balitora chipkali, a new species of stone loach (Teleostei: Balitoridae) from the northern Western Ghats of India, with a note on the distribution of B. laticauda
FIGURE 2. Details of head and mouth of Balitora chipkali holotype (BNHS FWF 193, 47.7mm SL). (A) Head in dorsal view, (B) Head in lateral view, (C) mouth and (D) line drawing of mouth.
FIGURE 7 in Balitora chipkali, a new species of stone loach (Teleostei: Balitoridae) from the northern Western Ghats of India, with a note on the distribution of B. laticauda
FIGURE 7. Maximum likelihood tree based on concatenated COI and Cytb gene sequences depicting the phylogenetic position of southern Indian balitorids marked with different colors. Species of family Gastromyzontidae and Myxocyprinus asiaticus (Family: Catostomidae) are used as outgroups with M. asiaticus as a root. Balitora chipkali is a monophyletic group and sister taxon of B. laticauda. Southern India species of Balitora form a monophyletic group with Hemimyzon elongatus. Voucher numbers, wherever available, are provided in parenthesis.
FIGURE 5 in Balitora chipkali, a new species of stone loach (Teleostei: Balitoridae) from the northern Western Ghats of India, with a note on the distribution of B. laticauda
FIGURE 5. Distribution of Balitora chipkali and its sister taxa B. laticauda. Star indicates type locality. Balitora chipkali is distributed in westward flowing Kali River system, while B. laticauda is widely distributed in eastward flowing rivers which are tributaries of Krishna River system.
FIGURE 3. Synidotea laticauda Benedict, 1897 in A new record and mitochondrial identification of Synidotea laticauda Benedict, 1897 (Crustacea: Isopoda: Valvifera: Idoteidae) from the Yangtze Estuary, China
FIGURE 3. Synidotea laticauda Benedict, 1897. Female (total length, 9.7 mm). A–G, pereopods 1–7. Scale = 1mm.
FIGURE 2. Synidotea laticauda Benedict, 1897. A–C in A new record and mitochondrial identification of Synidotea laticauda Benedict, 1897 (Crustacea: Isopoda: Valvifera: Idoteidae) from the Yangtze Estuary, China
FIGURE 2. Synidotea laticauda Benedict, 1897. A–C, female (total length, 9.7 mm); D, adult male (total length, 13.4 mm). A and D, habitus in dorsal view; B, Antenna 1 flagellum; C and E, uropod. Scale = 1mm.
FIGURE 5 in A new record and mitochondrial identification of Synidotea laticauda Benedict, 1897 (Crustacea: Isopoda: Valvifera: Idoteidae) from the Yangtze Estuary, China
FIGURE 5. Phylogram showing relationships among selected species of the family Idoteidae, inferred from ML analysis of COI sequences. Numbers below branches are bootstrap values (950 replicates); only values higher than 50% are shown.
FIGURE 1. Synidotea laticauda Benedict, 1897. A in A new record and mitochondrial identification of Synidotea laticauda Benedict, 1897 (Crustacea: Isopoda: Valvifera: Idoteidae) from the Yangtze Estuary, China
FIGURE 1. Synidotea laticauda Benedict, 1897. A, female (total length, 9.7 mm); B, adult male (total length, 13.4 mm), habitus in dorsal view. Scale = 1mm.
FIGURE 4. Synidotea laticauda Benedict, 1897 in A new record and mitochondrial identification of Synidotea laticauda Benedict, 1897 (Crustacea: Isopoda: Valvifera: Idoteidae) from the Yangtze Estuary, China
FIGURE 4. Synidotea laticauda Benedict, 1897. Adult male (total length, 13.4 mm). A–G, pereopods 1–7; H, pleopod 2 and appendix masculina; I, penial plate. Scale = 1mm.
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