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14 results for “Ostrinia furnacalis”
Multilocus evidence provides insight into the demographic history and asymmetrical gene flow between Ostrinia furnacalis and Ostrinia nubilalis (Lepidoptera: Crambidae) in the Yili area, Xinjiang, China
<p><span>Tianshan Mountain provides a model for studying biological evolution and speciation. Here we assess the evolutionary history of the <em>Ostrinia furnacalis</em> and <em>Ostrinia nubilalis</em>, which are sympatric in the Yili River Valley in Xinjiang, China. </span></p> <p><span>Our study is based on the historical gene flow analyses of two species by using three mitochondrial DNA (mtDNA, <em>COI</em> & <em>COII</em> & <em>Cytb</em>) and four nuclear DNA (nuDNA, <em>EF-1α</em> &<em> Wingless</em> & <em>RPS5</em> &<em> CAD</em>) markers obtained from representatives of HC (Huocheng), YN (Yining), XY (Xinyuan) and MNS (Manasi). </span></p> <p><span>Our results reveal that there is a strong asymmetrical gene flow pattern between the four populations. The population migratory pathways between these different populations show inflow into HC and YN, outflow from XY, and that MNS maintained a flow balance. Bayesian divergence time dating based on the <em>COI</em> gene suggest the genetic divergence between the two species in this area may have occurred in the late-Pleistocene (0.003</span><span>–0.0127</span><span> Mya). Neutrality tests (Tajima's <em>D</em>, Fu's <em>Fs</em>) and mismatch distribution test results suggest that population expansion events may not have occurred in the recent past, which may follow the 'mountain isolation' hypothesis. The ML and BI trees of the mtDNA haplotype dataset show that ECB haplotypes are clustered together in a distinct clade and are clearly separate from ACB haplotypes. However, the geographical pattern of haplotype distribution is less clear and there is no strong correspondence between haplotypes and their geographical pattern for both ACB and ECB, implying that there has been frequent gene flow among the geographic populations in the Tianshan Mountains.</span></p> <p><span>These findings confirm that geological factors play an important role in driving genetic patterns.</span></p>
Multilocus evidence provides insight into the demographic history and asymmetrical gene flow between Ostrinia furnacalis and Ostrinia nubilalis (Lepidoptera: Crambidae) in the Yili area, Xinjiang, China
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FIGURE 7 in Phylogenetic relationships and biological features reveal that male Ostrinia furnacalis (Lepidoptera: Crambidae) in Northeast China can be categorized into postmedial line-based clades
FIGURE 7. Host preference of clades of Ostrinia furnacalis 2015-2016. (Abbreviation: C=Corn, R=Rice, Sg=Sorghum, W=Weed, Sb=Soybean, G=Grape, V=Vegetation, CL=Corn-Larval (male from larval inside corn plants); I, II & III=Clade I-III). Note: IV in 2015 test represented males morphologically similar to males with postmedial line of IV clades, and was removed in 2016 test.
FIGURE 4 in Phylogenetic relationships and biological features reveal that male Ostrinia furnacalis (Lepidoptera: Crambidae) in Northeast China can be categorized into postmedial line-based clades
FIGURE 4. Phylogenic relationships within Ostrinia furnacalis: A: Phylogenic relationship within O. furnacalis clade I; B: Phylogenic relationship within O. furnacalis clade II; C: Phylogenic relationship within O. furnacalis clade III; D: Phylogenic relationship tree showing all typical taxa within O. furnacalis. A1 and A2 are outgroup O.nubilalis. Note: Maximum likelihood, Maximum parsimony, Bayesian posterior probabilities and Neighborjoining bootstrap values (%) are indicated above each branch in the format of ML/ MP/ BI/ NJ.
FIGURE 5 in Phylogenetic relationships and biological features reveal that male Ostrinia furnacalis (Lepidoptera: Crambidae) in Northeast China can be categorized into postmedial line-based clades
FIGURE 5. Life span of male Ostrinia furnacalis clades under different living conditions. Abbreviation: I~III=Clades I, II& III; N=none (no water provided); M = moisture (cotton ball full of water for air moisture, approximately 90% relative humidity); W=water (water was available); H=honey (5% honey was available); Comparision equals overall life span of the males under different conditions (captures from traps and sweep net were pooled); Life span equals life span of males captured just by traps. Note: right Y axis numbers are only used for the life span treatment.
FIGURE 2 in Phylogenetic relationships and biological features reveal that male Ostrinia furnacalis (Lepidoptera: Crambidae) in Northeast China can be categorized into postmedial line-based clades
FIGURE 2. The external appearance of male Ostrinia nubilalis and clades of male Ostrina furnacalis. A: terminology relating to postmedial line; a, b, c and d: four typical postmedial line; a-b, b-c and c-d: clades I, II, and III; e & f: Ostrinia nubilalis sex pheromone strains of General and New York.
Data from: The genetic structure of Asian corn borer, Ostrinia furnacalis, populations in China: haplotype variance in Northern populations and potential impact on management of resistance to transgenic maize
Asian corn borer, Ostrinia furnacalis (Guenée), is a severe pest that infests cultivated maize in the major production regions of China. Populations show genotype-by-environment variation in voltinism, such that populations with a single generation (univoltine) are fixed in Northern China where growing seasons are short. Low genetic differentiation was found among samples from 33 collection sites across China and one site from North Korea (n = 1,673) using variation at 6 nuclear microsatellite loci (ENA corrected global FST = 0.020; P-value < 0.05). Analysis of molecular variance (AMOVA) indicated that geographic region, number of generations or voltinism accounted for < 0.38% of the total genetic variation at nuclear loci and was corroborated by clustering of co-ancestries among genotypes using the program STRUCTURE. In contrast, a mitochondrial haplotype network identified four distinct clusters, where 70.5% of samples from univoltine populations were within a single group. Univoltine populations were also placed into a unique cluster using Population Graph and Principal Component analyses, which showed significant differentiation with multivoltine populations (ST = 0.400; P-value < 0.01). This study suggests that gene flow among O. furnacalis in China may be high among regions, with the exception of northeastern localities. Haplotype variation may be due to random genetic drift resulting from partial reproductive isolation between univoltine and multivoltine O. furnacalis populations. Such reproductive isolation might impact the potential spread of alleles that confer resistance to transgenic maize in China.
Data from: The genetic structure of Asian corn borer, Ostrinia furnacalis, populations in China: haplotype variance in Northern populations and potential impact on management of resistance to transgenic maize
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Data from: Lateralized courtship behaviors and mating success in Ostrinia furnacalis (Lepidoptera: Crambidae): A population-level study on maize plants under greenhouse conditions
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FIGURE 6B in Phylogenetic relationships and biological features reveal that male Ostrinia furnacalis (Lepidoptera: Crambidae) in Northeast China can be categorized into postmedial line-based clades
FIGURE 6B. Male dynamics of Ostrina furnacalis clades I, II & III in various field in 2016.
FIGURE 6A in Phylogenetic relationships and biological features reveal that male Ostrinia furnacalis (Lepidoptera: Crambidae) in Northeast China can be categorized into postmedial line-based clades
FIGURE 6A. Male dynamics of Ostrinia furnacalis clades in 2015 (I~III =Clade I, II&III).
Next Generation Sequencing Facilitates Quantitative Analysis of the transcriptome of different developmental stages and tissues in Ostrinia furnacalis
GEO Series GSE197663. Ostrinia furnacalis. 30 samples. Type: Expression profiling by high throughput sequencing.
FIGURE 3 in Phylogenetic relationships and biological features reveal that male Ostrinia furnacalis (Lepidoptera: Crambidae) in Northeast China can be categorized into postmedial line-based clades
FIGURE 3. Scuulus structures of Ostrinia furnacalis and O. nubilalis: I. Clade I of O. furnacalis; II. Clade II of O. furnacalis; III. Clade III of O. furnacalis.
FIGURE 1 in Phylogenetic relationships and biological features reveal that male Ostrinia furnacalis (Lepidoptera: Crambidae) in Northeast China can be categorized into postmedial line-based clades
FIGURE 1. Males of Ostrinia furnacalis in and outside the sex-pheromone baited traps. A: Postmedial line of the males on the inner-wall of the trap (A-1), on the inner-wall of trap's lid (A-2) and on our fingers (A-3); B,C and D: Sex-pheromone baited traps in corn field, weed field and soybean field.
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