280 Works

Data from: Molecular evolution of shattering loci in U.S. weedy rice

Carrie Thurber, Michael Reagon, Briana Gross, Kenneth Olsen, Yulin Jia & Ana Caicedo
Cultivated rice fields worldwide are plagued with weedy rice, a conspecific weed of cultivated rice (Oryza sativa L.). The persistence of weedy rice has been attributed, in part, to its ability to shatter (disperse) seed prior to crop harvesting. In the United States, separately evolved weedy rice groups have been shown to share genomic identity with exotic domesticated cultivars. Here, we investigate the shattering phenotype in a collection of U.S. weedy rice accessions, as well...

Data from: Hybridization and invasion: an experimental test with diffuse knapweed (Centaurea diffusa Lam.)

Amy C Blair, Dana Blumenthal & Ruth A Hufbauer
A number of studies have suggested a link between hybridization and invasion. In this study, we experimentally test the potential for hybridization to influence invasion through a greenhouse common garden study. Diffuse knapweed (Centaurea diffusa Lam.) was introduced to North America with admixture from spotted knapweed (Centaurea stoebe subsp. stoebe L.). Comparisons between North American diffuse knapweed (including hybrid phenotypes) and native (European) diffuse knapweed in a common garden did not reveal enhanced performance or...

Data from: Microsatellite primers for the Pacific Northwest endemic conifer Chamaecyparis lawsoniana (Cupressaceae)

Tara N. Jennings, Brian J. Knaus, Scott Kolpak & Richard Cronn
Microsatellite primers were developed for the Pacific Northwest conifer, Chamaecyparis lawsoniana (A. Murray) Parl. (Cupressaceae), to enhance efficiencies in disease-resistance breeding and germplasm screening for gene conservation of this rare species. Using multiplexed massively parallel Illumina sequencing, we identified over 300,000 microsatellite-containing sequences from 2 million paired-end microreads. After stringent filtering and primer evaluation, we selected 11 primer pairs and used these to screen variation in 4 populations of C. lawsoniana. Loci show between three...

Data from: Divergence estimates and early evolutionary history of Figitidae (Hymenoptera: Cynipoidea)

Matthew L. Buffington, Seán G. Brady, Shelah I. Morita & Simon Van Noort
matrix08REDUCEDBayes04The combined molecular and morphological dataset analyzed using MrBayes.cynipoid_dating_all_calibrationsThe molecular dataset analyzed using BEAST.

Data from: Patterns of primary succession of native and introduced plants in lowland wet forests in eastern Hawai‘i

Naupaka Zimmerman, R. Flint Hughes, Susan Cordell, Patrick Hart, Heather Kalei Chang, David Perez, Ryan Kaipoalohaakala Like & Rebecca Ostertag
The majority of Hawaii’s lowland wet forests no longer exist, with many of the last remaining patches found on the eastern, windward sides of the largest islands. To better understand successional patterns and invasion in these native systems, we quantified basal area (BA) and densities of woody species and understory cover at nine sites in the Puna district on the Island of Hawai‘i, representing age gradients of native stand development on both ‘a’ā and pāhoehoe...

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