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56 results for “life stage association”
FIGURE 2 in Anacroneuria flintorum Froehlich 2002 (Plecoptera: Perlidae): Notes, distribution, and life stages association using molecular tools
FIGURE 2. Nymph of Anacroneuria flintorum: head and pronotum (A), abdominal segments and cercus (B), mesonotum and metanotum in dorsal view (C) and ventral view (D). Scale: 1 mm.
FIGURE 1. Neighbor-joining tree for cytochrome c oxidase subunit I in Anacroneuria flintorum Froehlich 2002 (Plecoptera: Perlidae): Notes, distribution, and life stages association using molecular tools
FIGURE 1. Neighbor-joining tree for cytochrome c oxidase subunit I (COI) sequences (433 bp) from Anacroneuria flintorum Froehlich and related stoneflies from Espírito Santo and São Paulo States, Brazil, modeled by Kimura-2-parameter (K2P).
FIGURE 2 in A new record of Neoperla obliqua Banks, 1930 (Plecoptera: Perlidae) from Mt. Malindang, Mindanao, Philippines and association of life stages using DNA barcodes
FIGURE 2. Neoperla obliqua ♀ nymph. (2A) Nymphal habitus. (2B) Right mandible. (2C) Right foreleg. Scale = 1.00 mm, except for mandible which is 0.5 mm.
FIGURE 1 in A new record of Neoperla obliqua Banks, 1930 (Plecoptera: Perlidae) from Mt. Malindang, Mindanao, Philippines and association of life stages using DNA barcodes
FIGURE 1. Neoperla obliqua ova. (1A) Entire ova. (1B) Chorionic details (arrow refers to micropyle). (1C) Collar end. (1D) Anterior end. Scale = 100µm.
Data from: Winter territory prospecting is associated with life-history stage but not activity in a passerine
Finding a high quality territory is essential for many animals to reproduce successfully. Despite its importance for fitness, we know little about the process of territory prospecting in wild birds, and whether individual traits and behaviours, such as personality, co-vary with territory prospecting. Here, we use long-term data from a wild, insular house sparrow Passer domesticus population to test three hypotheses about territory fidelity and prospecting: (1) House sparrows show high territory fidelity between years and also during winter. (2) Individuals will prospect for a breeding territory during their first winter whereas older, more experienced individuals will keep a territory from previous years and will, therefore, show no or reduced winter territory prospecting. (3) More active behavioural types will prospect more than less active behavioural types. We use data from four winters from automatically, daily recorded nest-box visits of 188 birds of known age. The number of nest-boxes that each individual visited within each winter was used as a proxy of winter territory prospecting. We show that house sparrows visit multiple nest-boxes during their first winter, whereas older individuals keep territories year-round and, potentially because of this, indeed show reduced winter territory prospecting. Activity was not associated with the number of nest-boxes visited. Further research is needed to investigate whether time of territory and mate acquisition differs among individuals and the possible effect on lifetime fitness.
Data from: Winter territory prospecting is associated with life-history stage but not activity in a passerine
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Figure 4 from: Yu H-J, Lin X-L, Zhang R-L, Wang Q, Wang X-H (2020) Species delimitation and life stage association of Propsilocerus Kieffer, 1923 (Diptera, Chironomidae) using DNA barcodes. ZooKeys 975: 79-86. https://doi.org/10.3897/zookeys.957.54668
Figure 4 Head capsules of Propsilocerus akamusi (Tokunaga, 1938) and Propsilocerus taihuensis (Wen, Zhou & Rong, 1994) A head capsule of P. akamusi, ventral view B head capsule of P. taihuensis, ventral view C mandible of P. akamusiD mandible of P. taihuensisE antenna of P. akamusiF antenna of P. taihuensisG premento-hypopharyngeal complex of P. taihuensis. Scale bar: 100 µm (A, B), 50 µm (C, D), 25 µm (E, F).
Figure 3 from: Yu H-J, Lin X-L, Zhang R-L, Wang Q, Wang X-H (2020) Species delimitation and life stage association of Propsilocerus Kieffer, 1923 (Diptera, Chironomidae) using DNA barcodes. ZooKeys 975: 79-86. https://doi.org/10.3897/zookeys.957.54668
Figure 3 Neighbor-joining tree based on the 42 COI barcode sequences of Propsilocerus. Bootstrap support (1000 replicates) > 70% are labelled.
Figure 2 from: Yu H-J, Lin X-L, Zhang R-L, Wang Q, Wang X-H (2020) Species delimitation and life stage association of Propsilocerus Kieffer, 1923 (Diptera, Chironomidae) using DNA barcodes. ZooKeys 975: 79-86. https://doi.org/10.3897/zookeys.957.54668
Figure 2 Histogram of pairwise K2P distances of 42 aligned sequences of five Propsilocerus morphospecies. The figure was a result of analysis with ABGD using the K2P model. The horizontal axis shows the pairwise K2P-distance, and the vertical axis shows the number of pairwise sequence comparisons.
Data from: Life-stage associated remodeling of lipid metabolism regulation in Atlantic salmon
Atlantic salmon migrates from rivers to sea to feed, grow and develop gonads before returning to spawn in freshwater. The transition to marine habitats is associated with dramatic changes in the environment, including water salinity, exposure to pathogens, and shift in dietary lipid availability. Many anticipatory changes in physiology occur before migration to sea, but little is known about the molecular nature of these changes. Here we use a long term feeding experiment to study transcriptional regulation of lipid metabolism in Atlantic salmon gut and liver in both fresh- and saltwater. We find that lipid metabolism is highly plastic in response to differences in dietary lipid composition in freshwater, but then undergoes a marked shift when salmon transitions to the marine life-stage. Expression of genes in liver relating to lipogenesis and lipid transport decrease overall and become less responsive to diet, while genes for lipid uptake in gut become more highly expressed. Finally, analyses of evolutionary consequences of the salmonid specific whole-genome duplication on lipid metabolism reveals several pathways with significantly different (p<0.05) duplicate retention or duplicate regulatory conservation. We also find a limited number of cases where the whole genome duplication has resulted in an increased gene dosage. Our results demonstrate the presence of a life-stage associated remodeling of lipid metabolism at the gene regulatory level, suggesting an evolved preparatory optimization of lipid metabolism
FIGURE 6 in Anacroneuria flintorum Froehlich 2002 (Plecoptera: Perlidae): Notes, distribution, and life stages association using molecular tools
FIGURE 6. Records of Anacroneuria flintorum Froehlich 2002.
Data from: Life-stage associated remodeling of lipid metabolism regulation in Atlantic salmon
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Single-oocyte transcriptome analysis reveals aging-associated effects influenced by life stage and calorie restriction
GEO Series GSE159281. Mus musculus. 401 samples. Type: Expression profiling by high throughput sequencing.
Figure 1 from: Yu H-J, Lin X-L, Zhang R-L, Wang Q, Wang X-H (2020) Species delimitation and life stage association of Propsilocerus Kieffer, 1923 (Diptera, Chironomidae) using DNA barcodes. ZooKeys 975: 79-86. https://doi.org/10.3897/zookeys.957.54668
Figure 1 Larva of Propsilocerus taihuensis (Wen, Zhou & Rong, 1994).
Identification of transcriptome changes associated with toxic effects of methanolic coal dust extract on fish early life stage by RNASeq
GEO Series GSE128900. Danio rerio. 9 samples. Type: Expression profiling by high throughput sequencing.
Exposure to contaminated river water is associated with early hatching and dysregulation of gene expression in early life stages of the endangered copper redhorse
GEO Series GSE185175. Moxostoma hubbsi. 18 samples. Type: Expression profiling by high throughput sequencing.
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