Results 41 to 50 of about 1,120 (127)

Ecological causes and consequences of flower color polymorphism in a self‐pollinating plant (Boechera stricta) [PDF]

open access: yesNew Phytologist, 2018
SummaryIntraspecific variation in flower color is often attributed to pollinator‐mediated selection, yet this mechanism cannot explain flower color polymorphisms in self‐pollinating species. Indirect selection mediated via biotic and abiotic stresses could maintain flower color variation in these systems.The selfing forb,Boechera stricta, typically ...
Priya, Vaidya   +7 more
openaire   +2 more sources

Admixture, evolution, and variation in reproductive isolation in the Boechera puberula clade

open access: yesBMC Evolutionary Biology, 2018
Background Hybridization is very common in plants, and the incorporation of new alleles into existing lineages (i.e. admixture) can blur species boundaries. However, admixture also has the potential to increase standing genetic variation.
Martin P. Schilling   +4 more
doaj   +1 more source

The genome sequence of Barbarea vulgaris facilitates the study of ecological biochemistry [PDF]

open access: yes, 2017
peer-reviewedThe genus Barbarea has emerged as a model for evolution and ecology of plant defense compounds, due to its unusual glucosinolate profile and production of saponins, unique to the Brassicaceae. One species, B.
Agerbirk, Niels   +7 more
core   +2 more sources

Molecular Basis of Apomixis in Plants [PDF]

open access: yes, 2022
Apomixis is the consequence of a concerted mechanism that harnesses the sexual machinery and coordinates developmental steps in the ovule to produce an asexual (clonal) seed.

core   +1 more source

Evolutionary Ecological Genomics [PDF]

open access: yes, 2013
The recognition that evolution can happen on ecological timescales (Hairston et al. 2005; Pelletier et al. 2009; Ellner et al. 2011; Becks et al.
Anderson   +38 more
core   +1 more source

Effect of Drought on Herbivore-Induced Plant Gene Expression: Population Comparison for Range Limit Inferences

open access: yesPlants, 2016
Low elevation “trailing edge” range margin populations typically face increases in both abiotic and biotic stressors that may contribute to range limit development.
Gunbharpur Singh Gill   +4 more
doaj   +1 more source

Apospory and Diplospory in Diploid Boechera (Brassicaceae) May Facilitate Speciation by Recombination-Driven Apomixis-to-Sex Reversals [PDF]

open access: yes, 2019
Apomixis (asexual seed formation) in angiosperms occurs either sporophytically, through adventitious embryony, or gametophytically, where an unreduced female gametophyte (embryo sac) forms and produces an unreduced egg that develops into an embryo ...
Carman, John G.   +10 more
core   +5 more sources

Genome draft of the Arabidopsis relative Pachycladon cheesemanii reveals novel strategies to tolerate New Zealand’s high ultraviolet B radiation environment

open access: yesBMC Genomics, 2019
Background Pachycladon cheesemanii is a close relative of Arabidopsis thaliana and is an allotetraploid perennial herb which is widespread in the South Island of New Zealand.
Yanni Dong   +9 more
doaj   +1 more source

A Continental-Wide Perspective: The Genepool of Nuclear Encoded Ribosomal DNA and Single-Copy Gene Sequences in North American Boechera (Brassicaceae) [PDF]

open access: yes, 2012
74 of the currently accepted 111 taxa of the North American genus Boechera (Brassicaceae) were subject to pyhlogenetic reconstruction and network analysis. The dataset comprised 911 accessions for which ITS sequences were analyzed.
A Löve   +79 more
core   +4 more sources

Plant Evolution in Response to Abiotic and Biotic Stressors at “Rear-edge” Range Boundaries [PDF]

open access: yes, 2016
Most species in the mustard family are restricted to higher elevations and latitudes where they also have restricted local spatial distributions. In this chapter, we describe a novel hypothesis for the development of low-elevation range limits in upland ...
Gill, Gunbharpur S.   +4 more
core   +2 more sources

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