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Annals of Botany
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Annals of Botany: Plant Science Research
Annals of Botany: Plant Science Research

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Are carnivorous plants in competition with fish for the same resources? Bladderwort versus the Bluegill http://buff.ly/2lAYzs5
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Contrasting evolutionary patterns and historical hybridization of Anthosachne
http://buff.ly/2lzVlW5

Polyploidization and apomixis contribute to taxonomic complexity in Anthosachne, a perennial genus native to Australia in the wheat tribe. Sha et al. performed a phylogenetic analysis to explore differentiation patterns of polyploidy amongst Australasian wheat relatives.

Chloroplast rbcL and trnH-psbA and nuclear Acc1 gene sequences of 60 Anthosachne taxa and 9 Roegneria species were analyzed with those of 33 diploid taxa representing 20 basic genomes in Triticeae. Anthosachne is shown to have originated as a result of historical hybridization between Australopyrum and Roegneria species. Greater diversity in island Anthosachne compared to continental Roegneria might correlate with genetic mutation, polyploidization, apomixes and expansion.

"Genome origin, historical hybridization and genetic differentiation in Anthosachne australasica (Triticeae; Poaceae), inferred from chloroplast rbc L, trn H- psb A and nuclear Acc1 gene sequences." is available from Annals of Botany at http://buff.ly/2lzVlW5 . If you don't have access to a library with a subscription then it will be free access from January 2018.

blogpost: http://buff.ly/2lzDyhJ

Image: Scheme de monstrating the process of the colonization of Roegneria entity during the late Miocene, the speciation of Anthosachne polyploids during the Pliocene and subsequent range expansions within the A. australasica complex.
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Gene editing in legal limbo in Europe

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Amazing, super-sweet natural proteins

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Toxin-tainted submarine snow - AoBBlog

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10+ Surprising Pics That Show How Food Looks Before It’s Harvested (or is it surprising that people are surprised?)

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Trait coordination and structural variation in Amborella trichopoda
http://buff.ly/2lFtJ3V

Finding that Amborella trichopoda is sister to the rest of the angiosperms has raised the question of whether it shares certain key functional trait characteristics and plastic responses apparently widespread within the angiosperms at large. With this in mind, Trueba et al. tested the hypothesis that local canopy openness induces plastic responses in Amborella in a recent study published in AoB PLANTS. The authors provide evidence of intraspecific coordination between leaf and stem economic spectra in this key species. Moreover, by presenting the first architectural and biomechanical characterization of Amborella, their study offers new insights for the understanding of the early sequences of angiosperm form evolution.

You can pick up this paper FREE from AoB PLANTS at: http://buff.ly/2lFtJ3V

blogpost: http://buff.ly/2lFubil

Image: Illustration of ontogenetic architectural stages of Amborella trichopoda, and architectural variability under closed or open canopies. (A) Seedling and unbranched young plant 6 months after germination (stage 1). (B) 1-year-old plant (stage 2). (C) 1.5-year-old plant with a rooted ‘pseudo-rhizome’ (stage 2). (D) Around 6-year-old plant (stage 3). (E) >10-year-old plant growing under a closed canopy (stage 4). (F) >10 year-old-plant growing under open canopy (stage 4). Only one sequence of the successive modules of stage 4 individuals is represented. Abbreviations: adv, adventitious root; co, collar zone. Thick lines represent structural axes, thin lines represent lateral branches, arrowhead lines represent delayed relays, crosses are dead apices, circles are inflorescences, and gray shadings indicate successive architectural modules.
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Do floral and niche shifts favour the establishment of new polyploids?
http://buff.ly/2ljTENX

Polyploidization plays a critical role in plant evolution. The majority of neopolyploids do not become established, either because they have fewer potential mates, or may not be able to successfully compete with co-occurring progenitors at lower ploidy levels. Casazza et al. assess floral traits and ecological preferences that might be involved in establishment and persistence for polyploids of Primula marginata and Primula allionii and their hexaploid progenitors.

The results might explain the origin of polyploidized populations, suggesting that dodecaploids established and persisted by occupying geographical areas not yet filled by their closest relatives yet without significant evolution in their climatic and pollination niches.

"Do floral and niche shifts favour the establishment and persistence of newly arisen polyploids? A case study in an Alpine primrose" is available from Annals of Botany at http://buff.ly/2ljTENX If you don't have access to a library with a subscription, it will be free access from January 2018.

blogpost: http://buff.ly/2ljKi4G

Image: Floral traits measured in individuals of P. marginata (hexaploids and dodecaploids) and P. allionii (hexaploid species). Diagrams of long-styled (L) and short-styled (S) morphs. Sexual organ traits: AP, anther position; SP, stigma position. Corolla traits: TL, corolla tube length; MD, corolla mouth diameter; LL, petal limb length.
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Differential pollen placement on an Old World nectar bat increases pollination efficiency.
Now FREE access

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"Hi, I'm an #ActualLivingScientist" - Megan Lynch, Megan Lynch, on the hashtag that hit the headlines.
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