Results 21 to 30 of about 1,091 (183)

The complete mitochondrial genome sequence of Boechera stricta [PDF]

Mitochondrial DNA. Part B. Resources, 2018
Boechera stricta (B. stricta) is a wild relative of Arabidopsis, occurring in mostly montane regions of western North America. In this article, we assembled the complete mitochondrial (mt) DNA sequence of B.
Junji Li, Changwei Bi, Jing Tu, Zuhong Lu   +3 more
doaj   +3 more sources

An antiviral jacalin-like lectin gene contributes to nonhost resistance and host determination of potexviruses among Brassicaceae. [PDF]

New Phytol
Summary Plant resistance influences the host range of pathogens; however, the mechanism driving this influence remains poorly understood. Brassicaceae species are not natural hosts of potexviruses, for reasons that have not yet been determined. This study investigated the molecular basis of nonhost resistance (NHR) to potexviruses in the Brassicaceae ...
Suzuki T, Ishikawa K, Yusa A, Iwabuchi N, Kimura K, Yoshida T, Ota M, Suzuki M, Nishikawa M, Maejima K, Namba S, Yamaji Y.   +11 more
europepmc   +2 more sources

Recombination suppression in plant adaptation and speciation. [PDF]

New Phytol
Summary Recombination suppression is increasingly recognized as an important facilitator of genomic divergence and speciation, especially under ongoing gene flow. In plants, however, the broader evolutionary consequences and the mechanisms by which recombination suppression arises and spreads are still incompletely understood, reflecting the inherent ...
Zhang X, Hu Y, Huang K, Wright SI, Rieseberg LH.   +4 more
europepmc   +2 more sources

On the Limits of Alpine Plants: A Systematic Review of the Factors Behind Species' Elevational Range Limits. [PDF]

Ecol Evol
This systematic review of 107 studies on the factors behind the elevational range limits of alpine vascular plants shows a persistent emphasis on upper limits and abiotic factors, especially temperature, while work at lower limits is more evenly distributed across water availability, plant–plant interactions, and selection/local adaptation.
Weides SE, Grytnes JA, Dullinger S, Lenoir J, Pacheco-Riaño LC, Pannell JR, Wipf S, Rumpf SB.   +7 more
europepmc   +2 more sources

Analysis of conserved microRNAs in floral tissues of sexual and apomictic Boechera species [PDF]

BMC Genomics, 2011
Background Apomixis or asexual seed formation represents a potentially important agronomic trait whose introduction into crop plants could be an effective way to fix and perpetuate a desirable genotype through successive seed generations.
Vogel Heiko, Corral José M, Amiteye Samuel, Sharbel Timothy F   +3 more
doaj   +4 more sources

Detecting cryptic ghost lineage introgression in four-taxon genomic datasets. [PDF]

Appl Plant Sci
Abstract Premise Hybridization and introgression are pervasive evolutionary forces that have played fundamental roles in shaping the diversity of wild and domesticated plants. Four‐taxon tests for introgression provide a reliable framework for detecting signatures of ancient introgression from genomic data, which have played an important role in ...
Forsythe ES, Pappa BS, Clavette DA, Mendoza DY.   +3 more
europepmc   +2 more sources

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

Frontiers in Plant Science, 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 ...
John G. Carman, Mayelyn Mateo de Arias, Mayelyn Mateo de Arias, Lei Gao, Xinghua Zhao, Xinghua Zhao, Becky M. Kowallis, David A. Sherwood, Manoj K. Srivastava, Manoj K. Srivastava, Krishna K. Dwivedi, Krishna K. Dwivedi, Krishna K. Dwivedi, Bo J. Price, Landon Watts, Michael D. Windham   +15 more
doaj   +2 more sources

A comparison of 16S rRNA-gene and 16S rRNA-transcript derived microbial communities in bulk and rhizosphere soils [PDF]

Frontiers in Microbiology
Root exudates in a plant’s rhizosphere alters microbial community membership and activity, which can in turn alter a plant’s health and fitness. In this study we characterized bacterial community composition, using 16S rRNA-gene (DNA) sequencing to ...
Alessandra Ceretto, Alessandra Ceretto, Cynthia Weinig, Cynthia Weinig, Cynthia Weinig   +4 more
doaj   +2 more sources

The Evolution of Sex is Tempered by Costly Hybridization in Boechera (Rock Cress) [PDF]

Journal of Heredity, 2020
Abstract Despite decades of research, the evolution of sex remains an enigma in evolutionary biology. Typically, research addresses the costs of sex and asexuality to characterize the circumstances favoring one reproductive mode. Surprisingly few studies address the influence of common traits that are, in many organisms, obligately ...
Rushworth, Catherine A., Mitchell-Olds, Tom   +1 more
openaire   +3 more sources

The Leading Edge Matters Too: Fitness and the Expression of Adaptive Differentiation Are Greatest at the High-Elevation Edge of a Species' Range. [PDF]

Ecol Lett
We tested hypotheses about adaptation across elevational range limits in Erythranthe laciniata, a montane plant endemic to the Sierra Nevada. Using common garden experiments, we found highest fitness and strongest climate adaptation at high elevations, suggesting potential for range expansion and challenging assumptions of limited adaptive potential at
Shay JE, Pennington LK, Toews DJ, Green E, Sexton JP.   +4 more
europepmc   +2 more sources