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543 results for “larval development”
Aerial Images_Part 1_Integrating Remote Sensing and Machine Learning for Developing Spatio-Temporal Model to Predict Aquatic Larval Habitats of Malaria
<p>Aerial Images_Part 1_Integrating Remote Sensing and Machine Learning for Developing Spatio-Temporal Model to Predict Aquatic Larval Habitats of Malaria</p>
Data set for the article 'Temporal scaling in C. elegans larval development'
<p>This directory contains all analyzed data and data analysis scripts to create all figures for the article<br> Filina et al., Temporal scaling in C. elegans larval development, PNAS 2022 119:e2123110119</p>
Fig. 8 in Eight Species Of Anuran Amphibians (Amphibia, Anura) Found In Ukraine: Comparative Morphology And Classification Of Larval Development Stages
Fig. 8. Dynamics of four species' anuran amphibians body linear parameters.
Figure 4 in Husbandry, captive breeding, larval development and stages of the Malayan horned frog Megophrys nasuta (Schlegel, 1858) (Amphibia: Anura: Megophryidae)
Figure 4. Megophrys nasuta larvae in stages 25 to 45. Drawings: M. Wildenhues.
Figure 3 in Husbandry, captive breeding, larval development and stages of the Malayan horned frog Megophrys nasuta (Schlegel, 1858) (Amphibia: Anura: Megophryidae)
Figure 3. Megophrys nasuta larvae in stages 18 to 22. Drawings: R. Bach.
Figure 7 in Husbandry, captive breeding, larval development and stages of the Malayan horned frog Megophrys nasuta (Schlegel, 1858) (Amphibia: Anura: Megophryidae)
Figure 7. Megophrys nasuta larvae in stages 30 to 34. Photos: M. Wildenhues.
Figure 6 in Husbandry, captive breeding, larval development and stages of the Malayan horned frog Megophrys nasuta (Schlegel, 1858) (Amphibia: Anura: Megophryidae)
Figure 6. Megophrys nasuta larvae in stages 25 to 29. Photos: M. Wildenhues.
Figure 9 in Husbandry, captive breeding, larval development and stages of the Malayan horned frog Megophrys nasuta (Schlegel, 1858) (Amphibia: Anura: Megophryidae)
Figure 9. Megophrys nasuta larvae in stages 41 to 46. Photos: M. Wildenhues.
Temporally-balanced selection during development of larval Pacific oysters (Crassostrea gigas) inherently preserves genetic diversity within offspring
<p>Balancing selection is one of the mechanisms which has been proposed to explain the maintenance of genetic diversity in species across generations. For species with large populations and complex life histories, however, heterogeneous selection pressures may create a scenario in which the net effects of selection are balanced across developmental stages. With replicated cultures and a pooled sequencing approach, we show that genotype-dependent mortality in larvae of the Pacific oyster (Crassostrea gigas) is largely temporally dynamic and inconsistently in favor of a single genotype or allelic variant at each locus. Overall, the patterns of genetic change we observe to be taking place are more complex than what would be expected under classical examples of additive or dominant genetic interactions. They are also not easily explained by our current understanding of the effects of genetic load. Collectively, temporally heterogeneous selection pressures across different larval developmental stages may act to maintain genetic diversity in oysters, while also inherently sheltering genetic load within populations.</p>
Figure 8. Pilumnus spinifer H. Milne Edwards, 1834 in The complete larval development of the crab Pilumnus spinifer (Brachyura: Xanthoidea: Pilumnidae) reared in the laboratory
Figure 8. Pilumnus spinifer H. Milne Edwards, 1834. Maxilla of the megalopa. Scale bar: 0.05 mm.
Fig. 9 in Larval external morphology and development in Feihyla kajau (Dring, 1983) (Amphibia: Anura: Rhacophoridae)
Fig. 9. Morphological changes in Feihyla kajau tadpoles from Stages 36 to 37.
Fig. 10 in Larval external morphology and development in Feihyla kajau (Dring, 1983) (Amphibia: Anura: Rhacophoridae)
Fig. 10. Morphological changes in right pes of Feihyla kajau tadpoles from Stages 38 to 40.
Fig. 8 in Larval external morphology and development in Feihyla kajau (Dring, 1983) (Amphibia: Anura: Rhacophoridae)
Fig. 8. Morphological changes of Feihyla kajau tadpoles from Stages 34 to 35.
Fig. 6 in Larval external morphology and development in Feihyla kajau (Dring, 1983) (Amphibia: Anura: Rhacophoridae)
Fig. 6. Morphological changes of Feihyla kajau tadpoles from Stages 30 to 31.
Fig. 5 in Larval external morphology and development in Feihyla kajau (Dring, 1983) (Amphibia: Anura: Rhacophoridae)
Fig. 5. Morphological changes of Feihyla kajau tadpoles from Stages 26 to 29.
Fig. 1 in Larval external morphology and development in Feihyla kajau (Dring, 1983) (Amphibia: Anura: Rhacophoridae)
Fig. 1. Adult Feihyla kajau from Kubah National Park, Sarawak.
Fig. 7 in Larval external morphology and development in Feihyla kajau (Dring, 1983) (Amphibia: Anura: Rhacophoridae)
Fig. 7. Morphological changes of Feihyla kajau tadpoles from Stages 32 to 33.
Fig. 4 in Larval external morphology and development in Feihyla kajau (Dring, 1983) (Amphibia: Anura: Rhacophoridae)
Fig. 4. Dorsal and ventral views of Feihyla kajau tadpole (EC 1; Stage 26).
Data from: Larval development in the Pacific oyster and the impacts of ocean acidification: differential genetic effects in wild and domesticated stocks
<p>The adaptive capacity of marine calcifiers to ocean acidification (OA) is a topic of great interest to evolutionary biologists and ecologists. Previous studies have provided evidence to suggest that larval resilience to high <i>p</i>CO<sub>2</sub> seawater for these species is a trait with a genetic basis and variability in natural populations. To date, however, it remains unclear how the selective effects of OA occur within the context of complex genetic interactions underpinning larval development in many of the most vulnerable taxa. Here we evaluated phenotypic and genetic changes during larval development of Pacific oysters (<i>Crassostrea gigas</i>) reared in ambient (~ 400 µatm) and high (~ 1600 µatm) <i>p</i>CO<sub>2</sub> conditions, both in domesticated and naturalized 'wild' oysters from the Pacific Northwest, USA. Using pooled DNA samples, we determined changes in allele frequencies across larval development, from early "D-stage" larvae to metamorphosed juveniles (spat), in both groups and environments. Domesticated larvae had ~ 26% fewer loci with changing allele frequencies across developmental stages and < 50% as many loci affected by acidified culture conditions, compared to larvae from wild brood stock. Functional enrichment analyses of genetic markers with significant changes in allele frequency revealed that the structure and function of cellular membranes were disproportionately affected by high <i>p</i>CO<sub>2</sub> conditions in both groups. These results indicate the potential for a rapid adaptive response of oyster populations to OA conditions; however, underlying genetic changes associated with larval development differ between these wild and domesticated oyster stocks and influence their adaptive responses to OA conditions.</p>
Fig. 26 in Comparative study of the larval development of four anuran species from the Khorat Plateau, Thailand
Fig. 26. Tadpoles of Polypedates megacephalus during ontogenetic development: Stages 35 to 46.
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International Brain Laboratory public data
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OpenNeuro
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