Project description:We report the mRNA found in blood of photosensitive and photorefractory migratory buntings. The aim of this study was to study the effect of first long day on the mRNA makeup of blood in birds from two different seasonal states.
Project description:Most migrating passerine birds undertake their long biannual voyages during the night. During these times of the year birds are in a continuous state of severe sleep restriction, yet curiously they perform as well, or better, on tests of physical and cognitive performance than during non-migrating times of the year. This inherent physiological protection, a component of the endogenous circannual program regulating this crucial life history stage, disappears when birds are forced to stay awake at other times of the year, demonstrating that these protective changes are only associated with the nocturnal migratory state. The goal of the current study was to identify the physiological mechanisms that confer protection against the usually negative consequences of sleep loss while simultaneously allowing for the increased metabolic and cardiovascular output required for migration. To that end, we performed an RNA-seq analysis of heart and Liver collected from birds at different times of day under different migratory states and analyzed these data using differential expression, Ingenuity Pathway Analysis and Weighted Gene Co-expression Network Analysis. We identified numerous changes in gene expression networks implicating the involvement of multiple systems and pathways. These pathways regulate many aspects of metabolism, immune function, extracellular matrix wound repair, and protection of multiple organ systems in the body. Consequently, the circannual program controlling the appearance of the migratory phenotype involves the complex regulation of diverse gene networks associated with the physical demands of migration.
2019-04-23 | GSE116989 | GEO
Project description:Microbiota of hematophagous ectoparasites collected from migratory birds in Italy
Project description:We used transcriptomic information from the whole blood of migrating Garden warblers (Sylvia borin) to identify key regulatory pathways related to adaptations for migration. Birds were temporarily caged during stopover and then sampled twice at different refuelling states (lean vs fat), reflecting different migratory stages (stopover arrival vs departure) after the crossing of an extended ecological barrier.
2023-04-12 | GSE225337 | GEO
Project description:study on gut microbial sequencing of migratory birds in Poyang Lake
| PRJNA736842 | ENA
Project description:Microbial amplification sequencing data of Poyang Lake influenced by migratory birds
