13 Works

Data from: Complexity of the genetic basis of aging in nature revealed by a clinal study of lifespan and methuselah, a gene for aging, in Drosophila from eastern Australia.

Carla M. Sgrò, Belinda Van Heerwaarden, Vanessa Kellermann, Choon Wei Wee, Ary A. Hoffmann & Siu Fai Lee
Clinal studies are a powerful tool for understanding the genetic basis of climatic adaptation. However, while clines in quantitative traits and genetic polymorphisms have been observed within and across continents, few studies have attempted to demonstrate direct links between them. The gene methuselah in Drosophila has been shown to have a major effect on stress response and longevity phenotypes based largely on laboratory studies of induced mutations in the mth gene. Clinal patterns in the...

Data from: Sex-dependent evolution of life-history traits following adaptation to climate warming

Björn Rogell, William Widegren, Lára R. Hallsson, David Berger, Mats Björklund & Alexei A. Maklakov
1. Thermodynamic processes increase metabolic rate and decrease longevity at high temperatures in ectotherms. However, how sustained long-term increase in temperature affects the evolution of longevity is poorly understood. 2. Stress theory of ageing predicts that increased longevity is positively genetically correlated with resistance to different types of environmental stressors implying that evolutionary trajectories of ageing may be mediated by correlative selection for robust phenotypes under thermal stress. 3. Here, we test this hypothesis by...

Data from: A 34K SNP genotyping array for Populus trichocarpa: Design, application to the study of natural populations and transferability to other Populus species

Armando Geraldes, Steve P. DiFazio, Gancho T. Slavov, Priya Ranjan, Wellington Muchero, Jan Hannemann, Lee E. Gunter, Ann M. Wymore, Christopher J. Grassa, Nima Farzaneh, Ilga Porth, Athena D. Mckown, Oleksandr Skyba, Eryang Li, Miki Fujita, Jaroslav Klápště, Joel Martin, Wendy Schackwitz, Christa Pennacchio, Daniel Rokhsar, Michael C. Friedmann, Geoffrey O. Wasteneys, Robert D. Guy, Yousry A. El-Kassaby, Shawn D. Mansfield … & Gerald A. Tuskan
Genetic mapping of quantitative traits requires genotypic data for large numbers of markers in many individuals. For such studies, the use of large single nucleotide polymorphism (SNP) genotyping arrays still offers the most cost-effective solution. Herein we report on the design and performance of a SNP genotyping array for Populus trichocarpa (black cottonwood). This genotyping array was designed with SNPs pre-ascertained in 34 wild accessions covering most of the species latitudinal range. We adopted a...

Data from: Taphonomy of the Ediacaran fossil Pteridinium simplex preserved three-dimensionally in mass flow deposits, Nama Group, Namibia

Michael Meyer, David Elliott, James Schiffbauer, Patricia Vickers-Rich, Michael Hall, Karl Hoffman, Gabi Schneider, Shuhai Xiao, James D. Schiffbauer & Mike Meyer
Ediacara-type fossils are found in a diverse array of preservational styles, implying that multiple taphonomic mechanisms might have been responsible for their preservational expression. For many Ediacara fossils, the “death mask” model has been invoked as the primary taphonomic pathway. The key to this preservational regime is the replication or sealing of sediments around the degrading organisms by microbially induced precipitation of authigenic pyrite, leading toward fossil preservation along bedding planes. Nama-style preservation, on the...

Data from: Shades of red: bird-pollinated flowers target the specific colour discrimination abilities of avian vision

Mani Shrestha, Adrian G. Dyer, Skye Boyd-Gerny, Bob B. M. Wong & Martin Burd
Colour signals are a major cue in putative pollination syndromes. There is evidence that the reflectance spectra of many flowers target the distinctive visual discrimination abilities of hymenopteran insects, but far less is known about bird-pollinated flowers. Birds are hypothesized to exert different selective pressures on floral colour compared with hymenopterans because of differences in their visual systems. We measured the floral reflectance spectra of 206 Australian angiosperm species whose floral visitors are known from...

Data from: Colour-variable birds have broader ranges, wider niches and are less likely to be threatened

Kaspar Delhey, Jesse Smith & Anne Peters
Coloration fulfils a variety of adaptive functions in animals. Colour variability, both between and within species, can be caused by different colours being favoured for different functions and in different environments. Thus, species with highly variable coloration may have greater potential to persist in new and changing environments. As a consequence such colour variable species may be more able to adapt, colonize new areas and niches, occupy larger ranges, speciate more readily and in general...

Data from: Evolutionary responses of a coccolithophorid Gephyrocapsa oceanica to ocean acidification

Peng Jin, Kunshan Gao & John Beardall
The ongoing ocean acidification associated with a changing carbonate system may impose profound effects on marine planktonic calcifiers. Here, we show that a coccolithophore, Gephyrocapsa oceanica, evolved in response to an elevated CO2 concentration of 1000 μatm (pH reduced to 7.8) in a long term (∼ 670 generations) selection experiment. The high CO2 selected cells showed increases in photosynthetic carbon fixation, growth rate, cellular particulate organic carbon (POC) or nitrogen (PON) production and a decrease...

Data from: Extinction and recolonization of maritime Antarctica in the limpet Nacella concinna (Strebel, 1908) during the last glacial cycle: toward a model of Quaternary biogeography in shallow Antarctic invertebrates

Claudio A. González-Wevar, Thomas Saucède, Simon A. Morley, Steven L. Chown & Elie Poulin
Quaternary glaciations in Antarctica drastically modified geographical ranges and population sizes of marine benthic invertebrates and thus affected the amount and distribution of intraspecific genetic variation. Here, we present new genetic information in the Antarctic limpet Nacella concinna, a dominant Antarctic benthic species along shallow ice-free rocky ecosystems. We examined the patterns of genetic diversity and structure in this broadcast spawner along maritime Antarctica and from the peri-Antarctic island of South Georgia. Genetic analyses showed...

Data from: Evolutionary constraints and the maintenance of individual specialization throughout succession

Keyne Monro & Dustin J. Marshall
Constraints on life-history traits, with their close links to fitness, are widely invoked as limits to niche expansion at most organizational levels. Theoretically, such constraints can maintain individual specialization by preventing adaptation to all niches available, but empirical evidence of them remains elusive for natural populations. This problem may be compounded by a tendency to seek constraints involving multiple traits, neglecting their added potential to manifest in trait expression across environments (i.e., within reaction norms)....

Data from: Flower colour and phylogeny along an altitudinal gradient in the Himalaya of Nepal

Mani Shrestha, Adrian Dyer, Prakash Bhattarai, Martin Burd & Adrian G. Dyer
1. Both the phylogenetic structure and trait composition of flowering plant communities may be expected to change with altitude. In particular, floral colours are thought to vary with altitude because Hymenoptera typically decline in importance as pollinators while Diptera and Lepidoptera become more important at higher elevations. Thus, ecological filtering among elevation zones and competitive processes among co-occurring species within zones could influence the floral chromatic cues present at low and high elevations. 2. We...

Data from: Perched at the mito-nuclear crossroads: divergent mitochondrial lineages correlate with environment in the face of ongoing nuclear gene flow in an Australian bird

Alexandra Pavlova, J. Nevil Amos, Leo Joseph, Kate Loynes, Jeremy J. Austin, J. Scott Keogh, Graham N. Stone, James Allan Nicholls & Paul Sunnucks
Relationships among multi-locus genetic variation, geography and environment can reveal how evolutionary processes affect genomes. We examined the evolution of an Australian bird, the eastern yellow robin Eopsaltria australis, using mitochondrial (mtDNA) and nuclear (nDNA) genetic markers, and bioclimatic variables. In southeastern Australia, two divergent mtDNA lineages occur east and west of the Great Dividing Range, perpendicular to latitudinal nDNA structure. We evaluated alternative scenarios to explain this striking discordance in landscape genetic patterning. Stochastic...

Data from: Reliable genotyping of the koala (Phascolarctos cinereus) using DNA isolated from a single faecal pellet

Faye Wedrowicz, Mawar Karsa, Jennifer Mosse & Fiona E. Hogan
The koala, an Australian icon, has been added to the threatened species list. Rationale for the listing includes proposed declines in population size, threats to populations (e.g. disease) and loss and fragmentation of habitat. There is now an urgent need to obtain accurate data to assess the status of koala populations in Australia, to ensure the long-term viability of this species. Advances in genetic techniques have enabled DNA analysis to study and inform the management...

Data from: Maternal sexual interactions affect offspring survival and ageing

Damian K. Dowling, Belinda R. Williams & F. Garcia-Gonzalez
In many species, females exposed to increased sexual activity experience reductions in longevity. Here, in Drosophila melanogaster, we report an additional effect on females brought about by sexual interactions, an effect that spans generations. We subjected females to a sexual treatment consisting of different levels of sexual activity and then investigated patterns of mortality in their offspring. We found reduced probabilities of survival, increases in the rate of senescence and a pattern of reduced mean...

Registration Year

  • 2013
    13

Resource Types

  • Dataset
    13

Affiliations

  • Monash University
    13
  • National Evolutionary Synthesis Center
    2
  • RMIT University
    2
  • University of Adelaide
    1
  • Xiamen University
    1
  • University of Queensland
    1
  • Western Carolina University
    1
  • West Virginia University
    1
  • Australian National University
    1
  • University of Melbourne
    1