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16 results for “Ducetia”
Phylogeography and genetic diversity of the widespread katydid Ducetia japonica (Thunberg, 1815) across China
Habitat fragmentation can lower migration rates and genetic connectivity among remaining populations of native species. Ducetia japonica as one of the most widespread katydids in China, but little is known about its genetic structure and phylogeographic distribution. We combined the five-prime region of cytochrome c oxidase subunit I (COI-5P), 11 newly developed microsatellite loci coupled with an ecological niche model (ENM) to examine the genetic diversity and population structure of D. japonica in China and beyond to Laos and Singapore. Both Bayesian inference (BI) and haplotype network methods revealed six mitochondrial COI-5P lineages. The distribution of COI-5P haplotypes may not demonstrate significant phylogeographic structure (NST > GST, p > 0.05). The STRUCTURE analysis based on microsatellite data also revealed six genetic clusters, but discordant with those obtained from COI-5P haplotypes. For both COI-5P and microsatellite data, Mantel tests revealed a significant positive correlation between geographic and genetic distances in mainland China. Bayesian skyline plots (BSP) analyses indicated that the population size of D. japonica's three major mitochondrial COI-5P lineages were seemingly not affected by last glacial maximum (LGM, 0.015-0.025 Mya). The ecological niche models showed that the current distribution of D. japonica was similar to the species' distribution during the LGM period, and only slightly extended in northern China. Further phylogeographic studies based on more extensive sampling are needed to identify specific locations of glacial refugia in northern China.
FIGURE 9 in A new species of Ducetia (Tettigoniidae, Phaneropterinae) from Mindanao, Philippines based on bioacoustics, stridulatory file morphology and genetic data
FIGURE 9. Dendrogram and the first-four best species partitions from ASAP analyses of COI sequences of 165 Ducetia specimens. ASAP, the header [x, y] represents the number of species delimited and the asap score; and the number in each partition represents the number of specimens grouped within the delimited species.
FIGURE 8 in A new species of Ducetia (Tettigoniidae, Phaneropterinae) from Mindanao, Philippines based on bioacoustics, stridulatory file morphology and genetic data
FIGURE 8. Habitats in the municipalities of Sibagat (A) and Bunawan (B), Agusan del Sur where Ducetia laniae sp. nov. was found.
FIGURE 7 in A new species of Ducetia (Tettigoniidae, Phaneropterinae) from Mindanao, Philippines based on bioacoustics, stridulatory file morphology and genetic data
FIGURE 7. Ducetia laniae sp. nov. ♂ calling song: oscillogram (A) and spectrogram (B) showing two echeme-sequences; oscillograms showing four echemes (C) and one echeme (D); power spectra of an echeme (E) where the gray line represents the power [dB] (axis name and scale in gray) and the black solid peak represents the relative amplitude (axis name in black).
FIGURE 5 in A new species of Ducetia (Tettigoniidae, Phaneropterinae) from Mindanao, Philippines based on bioacoustics, stridulatory file morphology and genetic data
FIGURE 5. Tooth distribution on the stridulatory file of Ducetia laniae sp. nov. ♂ based on tooth length (A) and inter-tooth distance (B).
FIGURE 6 in A new species of Ducetia (Tettigoniidae, Phaneropterinae) from Mindanao, Philippines based on bioacoustics, stridulatory file morphology and genetic data
FIGURE 6. Ducetia laniae sp. nov. ♀: habitus in lateral (A) and dorsal (B) views; head, pronotum and anterior part of tegmina in dorsal view (C); abdominal apex in lateral (D) and ventral (E) views. Scale bars: 5 mm (A, B); 2 mm (C–E).
FIGURE 4 in A new species of Ducetia (Tettigoniidae, Phaneropterinae) from Mindanao, Philippines based on bioacoustics, stridulatory file morphology and genetic data
FIGURE 4. Ducetia laniae sp. nov. ♂: head, pronotum and anterior part of tegmina in dorsal view (A); face in anterior view (B); head, pronotum and anterior part of tegmina in lateral view (C); stridulatory file of the left tegmen in ventral view (D); abdominal apex in lateral (E) and ventral (F) views. Scale bars: 2 mm (A, C, E, F); 1 mm (B, D).
FIGURE 4 in Description of two new species of the Genus Ducetia Stål 1874 (Orthoptera: Tettigoniidae: Phaneropterinae) from India
FIGURE 4. Ducetia rohinii sp. nov. Habitus (a) male, (b) female and Call pattern (c) spectrogram, (d) oscillogram.
FIGURE 3. D in Description of two new species of the Genus Ducetia Stål 1874 (Orthoptera: Tettigoniidae: Phaneropterinae) from India
FIGURE 3. D. assamica sp. nov. (a) pronotum depicting Plectrum (P) and Mirror (M); (b) stridulatory file; (c) lateral view of cercus; (d) ventral view of subgenital plate; (e) scanning electron microscope image of stridulatory file.
FIGURE 2 in Description of two new species of the Genus Ducetia Stål 1874 (Orthoptera: Tettigoniidae: Phaneropterinae) from India
FIGURE 2. Ducetia assamica sp. nov. Habitus (a) male, (b) female and Call pattern (c) spectrogram, (d) oscillogram.
FIGURE 5. D in Description of two new species of the Genus Ducetia Stål 1874 (Orthoptera: Tettigoniidae: Phaneropterinae) from India
FIGURE 5. D. rohinii sp. nov. (a) pronotum depicting Plectrum (P) and Mirror (M); (b) stridulatory file (c) lateral view of cercus; (d) ventral view of subgenital plate; (e) scanning electron microscope image of stridulatory file.
FIGURE 1 in Description of two new species of the Genus Ducetia Stål 1874 (Orthoptera: Tettigoniidae: Phaneropterinae) from India
FIGURE 1. (a) General morphology of Ducetia showing important taxonomic characters (b) Right male tegmina of (i) Ducetia inerma, D. dichotoma, D. serrata (ii) D. japonica, D. assamica, D. rohinii. (c) Subgenital plate of (i) D. japonica, (ii) D. assamica, (iii) D. rohinii
Phylogeography and genetic diversity of the widespread katydid Ducetia japonica (Thunberg, 1815) across China
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FIGURE 3 in A new species of Ducetia (Tettigoniidae, Phaneropterinae) from Mindanao, Philippines based on bioacoustics, stridulatory file morphology and genetic data
FIGURE 3. Ducetia laniae sp. nov. ♂ habitus in lateral (A) and dorsal (B) views. Scale bar: 5 mm.
FIGURE 2 in A new species of Ducetia (Tettigoniidae, Phaneropterinae) from Mindanao, Philippines based on bioacoustics, stridulatory file morphology and genetic data
FIGURE 2. Ducetia laniae sp. nov. ♂ in its natural environment in Agusan del Sur.
FIGURE 1 in A new species of Ducetia (Tettigoniidae, Phaneropterinae) from Mindanao, Philippines based on bioacoustics, stridulatory file morphology and genetic data
FIGURE 1. Ducetia laniae sp. nov. ♂ in its natural environment in Agusan del Sur.
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