Project description:The genome of the white-throated sparrow (Zonotrichia albicollis) contains an inversion polymorphism on chromosome 2 that is linked to predictable variation in a suite of phenotypic traits including plumage color, aggression, and parental behavior. Differences in gene expression between the two color morphs, which represent the two common inversion genotypes (ZAL2/ZAL2 and ZAL2/ZAL2m), are therefore of potential interest toward understanding the molecular underpinnings of these phenotypes. To identify genes that are differentially expressed between the two morphs and correlated with behavior, we quantified both behavior and gene expression in a population of free-living white-throated sparrows. We quantified behavioral responses to simulated territorial intrusions (STIs) early during the breeding season. In the same birds, we then performed a transcriptomewide analysis of gene expression in two behaviorally relevant brain regions, the medial amygdala and hypothalamus. Using network analyses, we identified modules of genes that were correlated with both morph and STI-induced singing behavior. The majority of these genes were located within the inversion, demonstrating the profound effect the inversion has on the expression of genes captured by the rearrangement. Gene pathway analyses revealed that in the medial amygdala, the most prominent pathways were those related to steroid hormone receptor activity. Within these pathways, the only gene encoding such a receptor was ESR1 (estrogen receptor alpha). Our results thus suggest that ESR1 and related genes are important for behavioral differences between the morphs.
2017-11-06 | GSE77186 | GEO
Project description:Manakin Scapulohumeralis and Pectoralis Muscle Transcriptomes
Project description:The goal of this study was to compare next-generation sequencing (NGS)-derived liver and pectoralis major transcriptome profilings (RNA-seq) of chicken fed control diet to treatment birds fed methionine restriction diet. We sequenced mRNA from 10 Gallus gallus males fed either control (L-Methionine) or L-Methionine-deficient diet (5 control and 5 treatment) from 3-5 weeks of age. We sequenced both liver and the pectoralis major muscle.
2017-04-21 | GSE98039 | GEO
Project description:Dynamic molecular evolution of a supergene with suppressed recombination in white-throated sparrows
Project description:Investigate the effects loss of skeletal muscle Bmal1 has on systemic transcriptomes +/- exercise training. Mouse liver, heart, white adipose and lung tissues were collected 47 hours post their last exercise bout, with or without 6-weeks of daily treadmill training. +/- Skeletal muscle Bmal1
2024-07-02 | GSE253735 | GEO
Project description:Gene expression differences by morph, sex, and age in adult and nestling white-throated sparrows
Project description:Wooden Breast (WB) is a novel myopathy affecting the pectoralis major muscle of modern broiler chickens. We selected pectoralis fillet samples, a normal(healthy) fillet and a WB fillet.
