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A single gene underlies the dynamic evolution of poplar sex determination
Although hundreds of plant lineages have independently evolved dioecy (that is, separation of the sexes), the underlying genetic basis remains largely elusive1. Here we show that diverse poplar species carry part...
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Article
Open AccessGene expression trajectories during male and female reproductive development in balsam poplar (Populus balsamifera L.)
Plant reproductive development from the first appearance of reproductively committed axes through to floral maturation requires massive and rapid remarshalling of gene expression. In dioecious species such as ...
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Article
Open AccessGenome of the tropical plant Marchantia inflexa: implications for sex chromosome evolution and dehydration tolerance
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 diver...
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Article
Population differentiation in relation to conservation: nuclear microsatellite variation in the Canary Island endemic Lotus sessilifolius (Fabaceae)
We developed and characterized microsatellite markers for the genus Lotus, a large genus of leguminous plants containing many endemic species of conservation interest. The marker system was then used to survey pa...
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Variation in the bacteriome of the tropical liverwort, Marchantia inflexa, between the sexes and across habitats
Plant-microbe interactions impact ecosystem function through nutrient cycling, community interactions, and individual costs/benefits to the organisms involved. However, information on the establishment, divers...
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Article
Environmental change in the terrestrial vegetation of Bermuda: Revisiting Harshberger (1905)
In June of 1905 the pioneer ecologist John W. Harshberger visited Bermuda to investigate sand dune plants, survey the main plant formations and collect herbarium specimens. His specimens and observations are o...
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Article
Open AccessSexual epigenetics: gender-specific methylation of a gene in the sex determining region of Populus balsamifera
Methylation has frequently been implicated in gender determination in plants. The recent discovery of the sex determining region (SDR) of balsam poplar, Populus balsamifera, pinpointed 13 genes with differentiate...
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Article
Open AccessEvolutionary origin of highly repetitive plastid genomes within the clover genus (Trifolium)
Some clover species, particularly Trifolium subterraneum, have previously been reported to have highly unusual plastomes, relative to closely related legumes, enlarged with many duplications, gene losses and the ...
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Article
Open AccessTransposon fingerprinting using low coverage whole genome shotgun sequencing in Cacao (Theobroma cacao L.) and related species
Transposable elements (TEs) and other repetitive elements are a large and dynamically evolving part of eukaryotic genomes, especially in plants where they can account for a significant proportion of genome siz...
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Images of nature
Green Imperialism: Colonial Expansion, Tropical Island Edens and the Origins of Environmentalism, 1600-1860.
