Deep sequencing of amplicons reveals widespread intraspecific hybridization and multiple origins of polyploidy in big sagebrush (Artemisia tridentata, Asteraceae)

Bryce A. Richardson; Justin T. Page; Prabin Bajgain; Stewart Sanderson; Joshua A. Udall

doi:10.3732/ajb.1200373

Treesearch

Deep sequencing of amplicons reveals widespread intraspecific hybridization and multiple origins of polyploidy in big sagebrush (Artemisia tridentata, Asteraceae)

Formally Refereed

Authors:

Bryce A. Richardson, Justin T. Page, Prabin Bajgain, Stewart Sanderson, Joshua A. Udall

Year:

2012

Type:

Scientific Journal

Station:

Rocky Mountain Research Station

DOI:

https://doi.org/10.3732/ajb.1200373

Source:

American Journal of Botany. 99(12): 1962-1975.

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Abstract

Premise of the study: Hybridization has played an important role in the evolution and ecological adaptation of diploid and polyploid plants. Artemisia tridentata (Asteraceae) tetraploids are extremely widespread and of great ecological importance. These tetraploids are often taxonomically identified as A. tridentata subsp. wyomingensis or as autotetraploids of diploid subspecies tridentata and vaseyana. Few details are available as to how these tetraploids are formed or how they are related to diploid subspecies.

Keywords

Artemesia tridentata, Asteraceae, gene discordance, haplotype clustering, networks, phylogeny, pyrosequencing, reticulate evolution

Citation

Richardson, Bryce A.; Page, Justin T.; Bajgain, Prabin; Sanderson, Stewart C.; Udall, Joshua A. 2012. Deep sequencing of amplicons reveals widespread intraspecific hybridization and multiple origins of polyploidy in big sagebrush (Artemisia tridentata, Asteraceae). American Journal of Botany. 99(12): 1962-1975.