Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Jeffery M. Saarela"'
Publikováno v:
PhytoKeys, Vol 217, Iss , Pp 1-135 (2023)
The Arctic ecozone is undergoing a rapid transformation in response to climate change. Establishing a baseline of current Arctic biodiversity is necessary to be able to track changes in species diversity and distribution over time. Here, we report a
Externí odkaz:
https://doaj.org/article/4401d2ca67194f688878f39804cbb43b
Publikováno v:
PeerJ, Vol 10, p e13884 (2022)
To investigate phylogenetic relationships among and within major lineages of Bromus, with focus on Bromus sect. Bromus, we analyzed DNA sequences from two nuclear ribosomal (ITS, ETS) and two plastid (rpl32-trnLUAG, matK) regions. We sampled 103 ingr
Externí odkaz:
https://doaj.org/article/4edf2e9bd2d64d23b9479fa77c69773e
Autor:
Jeffery M. Saarela, Paul C. Sokoloff, Lynn J. Gillespie, Roger D. Bull, Bruce A. Bennett, Sergei Ponomarenko
Publikováno v:
PhytoKeys, Vol 141, Iss , Pp 1-330 (2020)
Victoria Island in Canada’s western Arctic is the eighth largest island in the world and the second largest in Canada. Here, we report the results of a floristic study of vascular plant diversity of Victoria Island. The study is based on a specimen
Externí odkaz:
https://doaj.org/article/7c524b4dee1341f4a11cc78036d04762
Autor:
Jeffery M. Saarela, Roger D. Bull, Michel J. Paradis, Sharon N. Ebata, Paul M. Peterson, Robert J. Soreng, Beata Paszko
Publikováno v:
PhytoKeys, Vol 87, Iss , Pp 1-139 (2017)
Circumscriptions of and relationships among many genera and suprageneric taxa of the diverse grass tribe Poeae remain controversial. In an attempt to clarify these, we conducted phylogenetic analyses of >2400 new DNA sequences from two nuclear riboso
Externí odkaz:
https://doaj.org/article/536ea29b97b24481bc204e45e1fd3320
Autor:
Jeffery M. Saarela, Sean V. Burke, William P. Wysocki, Matthew D. Barrett, Lynn G. Clark, Joseph M. Craine, Paul M. Peterson, Robert J. Soreng, Maria S. Vorontsova, Melvin R. Duvall
Publikováno v:
PeerJ, Vol 6, p e4299 (2018)
The systematics of grasses has advanced through applications of plastome phylogenomics, although studies have been largely limited to subfamilies or other subgroups of Poaceae. Here we present a plastome phylogenomic analysis of 250 complete plastome
Externí odkaz:
https://doaj.org/article/ce4cf8bdc1994f828fc1fff749b00391
Publikováno v:
PhytoKeys, Vol 52, Pp 23-79 (2015)
The Canadian Arctic Archipelago is a vast region of approximately 1,420,000 km2, with a flora characterized by low species diversity, low endemicity, and little influence by alien species. New records of vascular plant species are documented here bas
Externí odkaz:
https://doaj.org/article/a81ed3a7ebe34fc58008b037cf3d56eb
Publikováno v:
PeerJ, Vol 5, p e2835 (2017)
The Coppermine River in western Nunavut is one of Canada’s great Arctic rivers, yet its vascular plant flora is poorly known. Here, we report the results of a floristic inventory of the lower Coppermine River valley and vicinity, including Kugluk (
Externí odkaz:
https://doaj.org/article/7fa9bc7188c0475f87122c547d41f973
Publikováno v:
Journal of Systematics and Evolution. 60:691-712
Publikováno v:
Phytotaxa. 471:147-192
Establishing a baseline of current Arctic vascular plant diversity and distribution is critical, given the rapid and major environmental changes occurring in the Arctic ecozone in response to climate change. Here, we report the results of a floristic
Autor:
Paul C. Sokoloff, Tatiana T. Souza-Chies, Jeffery M. Saarela, Leonardo Nogueira da Silva, Liliana Essi
Publikováno v:
Phytotaxa. 435:41-49
Chascolytrum serranum, a new species of C. sect. Hildaea restricted to Serra Geral National Park and surroundings, in Cambará do Sul, Rio Grande do Sul, Brazil, is described and illustrated. The new species is morphologically similar to C. ambiguum