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Full-Text Articles in Life Sciences
Genome Of The Tropical Plant Marchantia Inflexa: Implications For Sex Chromosome Evolution And Dehydration Tolerance, Rose A. Marks, Jeramiah J. Smith, Quentin Cronk, Christopher J. Grassa, D. Nicholas Mcletchie
Genome Of The Tropical Plant Marchantia Inflexa: Implications For Sex Chromosome Evolution And Dehydration Tolerance, Rose A. Marks, Jeramiah J. Smith, Quentin Cronk, Christopher J. Grassa, D. Nicholas Mcletchie
Biology Faculty Publications
We present a draft genome assembly for the tropical liverwort, Marchantia inflexa, which adds to a growing body of genomic resources for bryophytes and provides an important perspective on the evolution and diversification of land plants. We specifically address questions related to sex chromosome evolution, sexual dimorphisms, and the genomic underpinnings of dehydration tolerance. This assembly leveraged the recently published genome of related liverwort, M. polymorpha, to improve scaffolding and annotation, aid in the identification of sex-linked sequences, and quantify patterns of sequence differentiation within Marchantia. We find that genes on sex chromosomes are under greater …
Intraspecific Variation In Dehydration Tolerance: Insights From The Tropical Plant Marchantia Inflexa, Rose A. Marks
Intraspecific Variation In Dehydration Tolerance: Insights From The Tropical Plant Marchantia Inflexa, Rose A. Marks
Theses and Dissertations--Biology
Plants are threatened by global change, increasing variability in weather patterns, and associated abiotic stress. Consequently, there is an urgent need to enhance our ability to predict plant community dynamics, shifts in species distributions, and physiological responses to environmental challenges. By building a fundamental understanding of plant stress tolerance, it may be possibly to protect the ecological services, economic industries, and communities that depend on plants. Dehydration tolerance (DhT) is an important mechanism of water stress tolerance with promising translational applications. Here, I take advantage natural variation in DhT to gain a deeper insight into this complex trait. In addition, …
Natural Selection For Disease Resistance In Hybrid Poplars Targets Stomatal Patterning Traits And Regulatory Genes., Karl Christian Fetter
Natural Selection For Disease Resistance In Hybrid Poplars Targets Stomatal Patterning Traits And Regulatory Genes., Karl Christian Fetter
Graduate College Dissertations and Theses
The evolution of disease resistance in plants occurs within a framework of interacting
phenotypes, balancing natural selection for life-history traits along a continuum of
fast-growing and poorly defended, or slow-growing and well-defended lifestyles. Plant
populations connected by gene flow are physiologically limited to evolving along a
single axis of the spectrum of the growth-defense trade-off, and strong local selection
can purge phenotypic variance from a population or species, making it difficult to
detect variation linked to the trade-off. Hybridization between two species that have
evolved different growth-defense trade-off optima can reveal trade-offs hidden in either
species by introducing phenotypic and …