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Cryptic Repeated Genomic Recombination During Speciation In Gossypium Gossypioides, Richard Clark Cronn, Randall Lee Small, Tamara Haselkorn, Jonathan F. Wendel Nov 2003

Cryptic Repeated Genomic Recombination During Speciation In Gossypium Gossypioides, Richard Clark Cronn, Randall Lee Small, Tamara Haselkorn, Jonathan F. Wendel

Ecology, Evolution and Organismal Biology Publications

The Mexican cotton Gossypium gossypioides is a perplexing entity, with conflicting morphological, cytogenetic, and molecular evidence of its phylogenetic affinity to other American cottons. We reevaluated the evolutionary history of this enigmatic species using 16.4 kb of DNA sequence. Phylogenetic analyses show that chloroplast DNA (7.3 kb), nuclear ribosomal internal transcribed spacers (ITS; 0.69 kb), and unique nuclear genes (8.4 kb) yield conflicting resolutions for G. gossypioides. Eight low-copy nuclear genes provide a nearly unanimous resolution of G. gossypioides as the basalmost American diploid cotton, whereas cpDNA sequences resolve G. gossypioides deeply nested within the American ...


Natural Ecosystems I. The Rocky Mountains, William A. Reiners, William L. Baker, Jill S. Baron, Diane M. Debinski, Scott A. Elias, Daniel B. Fagre, James S. Findley, Linda O. Mearns, David W. Roberts, Timothy R. Seastedt, Thomas J. Stohlgren, Thomas T. Veblen, Frederic H. Wagner Jan 2003

Natural Ecosystems I. The Rocky Mountains, William A. Reiners, William L. Baker, Jill S. Baron, Diane M. Debinski, Scott A. Elias, Daniel B. Fagre, James S. Findley, Linda O. Mearns, David W. Roberts, Timothy R. Seastedt, Thomas J. Stohlgren, Thomas T. Veblen, Frederic H. Wagner

Ecology, Evolution and Organismal Biology Publications

This assessment of climate-change effects on Rocky Mountain terrestrial ecosystems is prepare from information generated by a workshop focused on terrestrial systems of the Rocky Mountains, and held in Boulder, CO, on 29-30 September 2000 at the National Center for Atmospheric Research. It is a compilation of this workshop's discussion along with material from earlier workshops.