scholarly journals Genetic analyses of Astragalus sect. Humillimi (Fabaceae) resolve taxonomy and enable effective conservation

2018 ◽  
Vol 105 (10) ◽  
pp. 1703-1711
Author(s):  
Rob Massatti ◽  
Matthew T. Belus ◽  
Shahed Dowlatshahi ◽  
Gerard J. Allan
Keyword(s):  
Genetic Analyses ◽  
Astragalus Sect ◽  
Effective Conservation

Review of the genus Astragalus section Helmia (Fabaceae)

2019 ◽  
pp. 120-131
Author(s):  
M. S. Knyazev
Keyword(s):  
Identification Key ◽  
The Other ◽  
Taxonomic Review ◽  
Narrow Scope ◽  
A Priority ◽  
Astragalus Sect

A taxonomic review of species and intraspecific taxa of the Astragalus L. section Helmia Bunge is presented. We treat the section Helmia in a traditional, narrow scope, including only 9 species and subspecies: A. helmii Fisch. ex DC., A. tergeminus (Knjaz., Kulikov et E. G. Philippov) Knjaz., A. permiensis C. A. Mey. ex Rupr., A. depauperatus Ledeb. (= A. chakassiensis Polozhij), A. kasachstanicus Golosk. subsp. kasachstanicus, A. kasachstanicus subsp. coloratus Knjaz., A. gregorii B. Fedtsch. et Basil. (= A. tuvinicus Timokhina), A. heptapotamicus Sumnev., A. ionae Palib. ex Gontsch. et Popov. With regard to the other 16 species of sect. Helmia in its widest sense, as accepted in the monograph by D. Podlech and Sh. Zarre (2013), we believe it more correct to attribute them to other sections. The rank of A. helmii var. tergeminus Knjaz., Kulikov et E. G. Philippov is raised to the species, A. tergeminus (Knjaz., Kulikov et E. G. Philippov) Knjaz. It is shown that A. gregorii is a priority name of A. tuvinicus. The epitype of A. permiensis C. A. Mey. ex Rupr. is designated. An identification key and a map of distribution for all species and subspecies of Astragalus sect. Helmia are presented.

Towards evolutionary agroecology

2018 ◽  
Vol 6 (14) ◽  
pp. 51 ◽  
Author(s):  
Kristin L. Mercer
Keyword(s):  
Social Dynamics ◽  
Agricultural Systems ◽  
Short Term ◽  
Ecological Processes ◽  
Genetic Analyses ◽  
Holistic Perspective ◽  
Evolutionary Study ◽  
Quantitative Genetic ◽  
Field Evolution

Agroecology derives much of its strength from interactions between disciplines that produce a holistic perspective on agricultural systems and issues.  Although ongoing integration of social dynamics into agroecology has strengthened the field, evolution and genetics have not been embraced to the same degree, despite the fact that they have been are discussed in some common agroecology texts.  I argue that the field of agroecology could extend its reach and depth by embracing the evolutionary study of agroecosystems.  Areas of evolutionary inquiry with relevance to agriculture focus on long or short term processes, encompass a range of scales, incorporate molecular or quantitative genetic analyses, and explore ecological processes to differing degrees.

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