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Panu Somervuo Jouni Kvist Suvi Ikonen Petri Auvinen Lars Paulin Patrik Koskinen Liisa Holm Minna Taipale Anne Duplouy Annukka Ruokolainen Suvi Saarnio Jukka Sirén Jukka Kohonen Jukka Corander Mikko J. Frilander Virpi Ahola Ilkka Hanski 《PloS one》2014,9(7)
We characterize allelic and gene expression variation between populations of the Glanville fritillary butterfly (Melitaea cinxia) from two fragmented and two continuous landscapes in northern Europe. The populations exhibit significant differences in their life history traits, e.g. butterflies from fragmented landscapes have higher flight metabolic rate and dispersal rate in the field, and higher larval growth rate, than butterflies from continuous landscapes. In fragmented landscapes, local populations are small and have a high risk of local extinction, and hence the long-term persistence at the landscape level is based on frequent re-colonization of vacant habitat patches, which is predicted to select for increased dispersal rate. Using RNA-seq data and a common garden experiment, we found that a large number of genes (1,841) were differentially expressed between the landscape types. Hexamerin genes, the expression of which has previously been shown to have high heritability and which correlate strongly with larval development time in the Glanville fritillary, had higher expression in fragmented than continuous landscapes. Genes that were more highly expressed in butterflies from newly-established than old local populations within a fragmented landscape were also more highly expressed, at the landscape level, in fragmented than continuous landscapes. This result suggests that recurrent extinctions and re-colonizations in fragmented landscapes select a for specific expression profile. Genes that were significantly up-regulated following an experimental flight treatment had higher basal expression in fragmented landscapes, indicating that these butterflies are genetically primed for frequent flight. Active flight causes oxidative stress, but butterflies from fragmented landscapes were more tolerant of hypoxia. We conclude that differences in gene expression between the landscape types reflect genomic adaptations to landscape fragmentation. 相似文献
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Kyubin Lee Doyeong Yu Daejin Hyung Soo Young Cho Charny Park 《基因组蛋白质组与生物信息学报(英文版)》2022,20(3):466-482
Alternative splicing(AS) regulates biological processes governing phenotypes and diseases. Differential AS(DAS) gene test methods have been developed to investigate important exonic expression from high-throughput datasets. However, the DAS events extracted using statistical tests are insufficient to delineate relevant biological processes. In this study, we developed a novel application, Alternative Splicing Encyclopedia: Functional Interaction(ASpediaFI), to systemically identify DAS events an... 相似文献
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Russian Journal of Plant Physiology - Despite cold stress is a critical environmental condition that influences the growth and development of bell pepper (Capsicum annuum L.), the underlying... 相似文献