Results 21 to 30 of about 42,686 (159)

Insect herbivory (Choristoneura fumiferana, Tortricidea) underlies tree population structure (Picea glauca, Pinaceae). [PDF]

Sci Rep, 2017
Variation in insect herbivory can lead to population structure in plant hosts as indicated by defence traits. In annual herbaceous, defence traits may vary between geographic areas but evidence of such patterns is lacking for long-lived species. This may
Parent GJ, Giguère I, Germanos G, Lamara M, Bauce É, MacKay JJ.   +5 more
europepmc   +2 more sources

Spatial Variations in Seed Germination Traits of White Spruce (Picea glauca) and Black Spruce (P. mariana) Across the Canadian Boreal Forest [PDF]

Plants
This study focuses on the spatial variation in seed germination characteristics of Picea glauca and P. mariana, prominent and widespread species within the Canadian boreal forest.
Elaine Qualtiere, Yongsheng Wei, Dustin Snider, Yuguang Bai, Mark Johnston, Daniel W. McKenney, Pia Papadopol, Dale Simpson   +7 more
doaj   +2 more sources

Landscape of Fluid Sets of Hairpin-Derived 21-/24-nt-Long Small RNAs at Seed Set Uncovers Special Epigenetic Features in Picea glauca. [PDF]

Genome Biol Evol, 2017
Conifers’ exceptionally large genome (20–30 Gb) is scattered with 60% retrotransposon (RT) components and we have little knowledge on their origin and evolutionary implications.
Liu Y, El-Kassaby YA.
europepmc   +2 more sources

Organellar Genomes of White Spruce (Picea glauca): Assembly and Annotation. [PDF]

Genome Biol Evol, 2015
The genome sequences of the plastid and mitochondrion of white spruce (Picea glauca) were assembled from whole-genome shotgun sequencing data using ABySS.
Jackman SD, Warren RL, Gibb EA, Vandervalk BP, Mohamadi H, Chu J, Raymond A, Pleasance S, Coope R, Wildung MR, Ritland CE, Bousquet J, Jones SJ, Bohlmann J, Birol I.   +14 more
europepmc   +2 more sources

Genetic Adaptation vs. Ecophysiological Plasticity of Photosynthetic-Related Traits in Young Picea glauca Trees along a Regional Climatic Gradient. [PDF]

Front Plant Sci, 2016
Assisted population migration (APM) is the intentional movement of populations within a species range to sites where future environmental conditions are projected to be more conducive to growth. APM has been proposed as a proactive adaptation strategy to
Benomar L, Lamhamedi MS, Rainville A, Beaulieu J, Bousquet J, Margolis HA.   +5 more
europepmc   +2 more sources

Will It Survive? Evaluating the Effects of Damage and Silviculture on Tree Seedling Survival Using Multi-State Models. [PDF]

Ecol Evol
Plantations are the spearhead of adaptive silviculture, yet we do not understand how damage from abiotic and biotic agents relates to seedlings’ survival. In this study, we used multi‐state models, which originate from the medical field, to evaluate the relation between ‘damage history’, silvicultural treatments, and planted tree survival.
Champagne E, Dumais D, Picher G, Raymond P.   +3 more
europepmc   +2 more sources

Global Analysis of Small RNA Dynamics during Seed Development of Picea glauca and Arabidopsis thaliana Populations Reveals Insights on their Evolutionary Trajectories [PDF]

Frontiers in Plant Science, 2017
While DNA methylation carries genetic signals and is instrumental in the evolution of organismal complexity, small RNAs (sRNAs), ~18–24 ribonucleotide (nt) sequences, are crucial mediators of methylation as well as gene silencing.
Yang Liu, Yousry A. El-Kassaby
doaj   +2 more sources

Evolution of gene structure in the conifer Picea glauca: a comparative analysis of the impact of intron size. [PDF]

BMC Plant Biol, 2014
A positive relationship between genome size and intron length is observed across eukaryotes including Angiosperms plants, indicating a co-evolution of genome size and gene structure.
Stival Sena J, Giguère I, Boyle B, Rigault P, Birol I, Zuccolo A, Ritland K, Ritland C, Bohlmann J, Jones S, Bousquet J, Mackay J.   +11 more
europepmc   +2 more sources

Adaptation and exogenous selection in a Picea glauca × Picea engelmannii hybrid zone: implications for forest management under climate change. [PDF]

New Phytol, 2014
The nature of selection responsible for the maintenance of the economically and ecologically important Picea glauca × Picea engelmannii hybrid zone was investigated.
De La Torre AR, Wang T, Jaquish B, Aitken SN.   +3 more
europepmc   +2 more sources

The landscape of nucleotide polymorphism among 13,500 genes of the conifer picea glauca, relationships with functions, and comparison with medicago truncatula. [PDF]

Genome Biol Evol, 2013
Gene families differ in composition, expression, and chromosomal organization between conifers and angiosperms, but little is known regarding nucleotide polymorphism. Using various sequencing strategies, an atlas of 212k high-confidence single nucleotide
Pavy N, Deschênes A, Blais S, Lavigne P, Beaulieu J, Isabel N, Mackay J, Bousquet J.   +7 more
europepmc   +2 more sources