Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Environmental drivers and genomic architecture of trait differentiation in fire-adapted Banksia attenuata ecotypes

    Access Status
    Fulltext not available
    Authors
    He, Tianhua
    Lamont, Byron
    Enright, N.
    D'Agui, Haylee
    Stock, W.
    Date
    2018
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    He, T. and Lamont, B. and Enright, N. and D'Agui, H. and Stock, W. 2018. Environmental drivers and genomic architecture of trait differentiation in fire-adapted Banksia attenuata ecotypes. Journal of Integrative Plant Biology.
    Source Title
    Journal of Integrative Plant Biology
    DOI
    10.1111/jipb.12697
    ISSN
    1672-9072
    School
    School of Molecular and Life Sciences (MLS)
    URI
    http://hdl.handle.net/20.500.11937/73124
    Collection
    • Curtin Research Publications
    Abstract

    © 2018 Institute of Botany, Chinese Academy of Sciences Trait divergence between populations is considered an adaptive response to different environments, but to what extent this response is accompanied by genetic differentiation is less clear since it may be phenotypic plasticity. In this study, we analyzed phenotypic variation between two Banksia attenuata growth forms, lignotuberous (shrub) and epicormic resprouting (tree), in fire-prone environments to identify the environmental factors that have driven this phenotypic divergence. We linked genotype with phenotype and traced candidate genes using differential gene expression analysis. Fire intervals determined the phenotypic divergence between growth forms in B. attenuata. A genome-wide association study identified 69 single nucleotide polymorphisms, putatively associated with growth form, whereas no growth form- or phenotype-specific genotypes were identified. Genomic differentiation between the two growth forms was low (Fst = 0.024). Differential gene expression analysis identified 37 genes/transcripts that were differentially expressed in the two growth forms. A small heat-shock protein gene, associated with lignotuber presence, was differentially expressed in the two forms. We conclude that different fire regimes induce phenotypic polymorphism in B. attenuata, whereas phenotypic trait divergence involves the differential expression of a small fraction of genes that interact strongly with the disturbance regime. Thus, phenotypic plasticity among resprouters is the general strategy for surviving varying fire regimes.

    Related items

    Showing items related by title, author, creator and subject.

    • Ecological divergence and evolutionary transition of resprouting types in Banksia attenuata
      He, Tianhua (2014)
      Resprouting is a key functional trait that allows plants to survive diverse disturbances. The fitness benefits associated with resprouting include a rapid return to adult growth, early flowering, and setting seed. The ...
    • Analysis of candidate genes within the 3p14-p22 region of the human genome for association with bone mineral density phenotypes
      Mullin, Benjamin H (2011)
      Previous studies have identified the 3p14-p22 chromosomal region as a quantitative trait locus for bone mineral density (BMD). The overall aim of this thesis is to identify the gene or genes from this region that are ...
    • Molecular mechanism underlying aberrant expression of the connective tissue growth factor in paediatric pre-B cell acute lymphoblastic leukemia
      Welch, Mathew D. (2011)
      Acute lymphoblastic leukaemia (ALL) is the most common cancer diagnosed in children aged 1-14 years. There have been vast improvements in clinical outcomes for children diagnosed with ALL with cure rates of up to 90% ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.