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Perspective
| Open AccessMulti-omics for studying and understanding polar life
Endangered polar ecosystems play critical roles in the Earth’s climate system and comprise many different habitats with unique organisms. Here, the authors propose a community road map to use multi-omics data from polar organisms for conservation, ecosystem services and societal gain.
- M. S. Clark
- , J. I. Hoffman
- & T. Mock
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Article
| Open AccessThe genomic footprint of whaling and isolation in fin whale populations
Industrial whaling drove several species to near extinction. From an analysis of 50 whole-genomes from fin whale populations, this study shows that the fin whale population in the Eastern North Pacific was reduced 99% during whaling but has maintained genomic diversity, whereas the Gulf of California population remained small and isolated, resulting in increased genetic load.
- Sergio F. Nigenda-Morales
- , Meixi Lin
- & Robert K. Wayne
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Article
| Open AccessEarly stages of sympatric homoploid hybrid speciation in crater lake cichlid fishes
Here, the authors present a rare example of sympatric homoploid hybrid speciation, without ploidy changes, in the Midas cichlid fishes from Nicaragua. Midas cichlid hybrids occupy a different ecological niche, likely facilitated by body shape adaptations.
- Melisa Olave
- , Alexander Nater
- & Axel Meyer
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Article
| Open AccessChromosome-level and haplotype-resolved genome provides insight into the tetraploid hybrid origin of patchouli
The ploidy level of patchouli, an aromatic plant in the Lamiaceae family, remain unclear. Here, the authors assemble a chromosome-level and haplotype-resolved genome for patchouli and reveal that it is tetraploid hybrid as well as compensated aneuploidy.
- Yanting Shen
- , Wanying Li
- & Hong-bin Wang
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Article
| Open AccessGenomic insights into the conservation status of the world’s last remaining Sumatran rhinoceros populations
Highly endangered species like the Sumatran rhinoceros are at risk from inbreeding. Five historical and 16 modern genomes from across the species range show mutational load, but little evidence for local adaptation, suggesting that future inbreeding depression could be mitigated by assisted gene flow among populations.
- Johanna von Seth
- , Nicolas Dussex
- & Love Dalén
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Article
| Open AccessGenomic and transcriptomic insights into molecular basis of sexually dimorphic nuptial spines in Leptobrachium leishanense
The basis of sexual dimorphism in non-model species may be elusive, in part due to a lack of genomic and molecular resources. Here, Li et al. report a high-quality anuran genome and reveal candidate genes and pathways associated with shaping sexually dimorphic nuptial spines in a moustache toad.
- Jun Li
- , Haiyan Yu
- & Hua Wu
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Article
| Open AccessPuma genomes from North and South America provide insights into the genomic consequences of inbreeding
Pumas are experiencing increased isolation as human persecution and habitat loss fragment the populations of this once widespread species. Here, the authors estimate the genomic consequences of this isolation by analyzing the genomes of ten pumas from across North and South America.
- Nedda F. Saremi
- , Megan A. Supple
- & Beth Shapiro
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Article
| Open AccessGenomic signatures and correlates of widespread population declines in salmon
The Atlantic salmon has suffered widespread population declines over the last century. Here, Lehnert et al. reconstruct changes in effective population size of 172 populations based on genomic linkage information revealing mostly temperature-associated population declines with over 60% of populations in decline since 1975.
- S. J. Lehnert
- , T. Kess
- & I. R. Bradbury
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Article
| Open AccessIntermediate DNA methylation is a conserved signature of genome regulation
Many loci in the mammalian genome are intermediately methylated. Here, by comprehensively identifying these loci and quantifying their relationship with gene activity, the authors show that intermediate methylation is an evolutionarily conserved epigenomic signature of gene regulation.
- GiNell Elliott
- , Chibo Hong
- & Joseph F. Costello