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Preliminary study on genetic diversity of endemic and threatened species of Petunia (Solanaceae) Darwiniana
Villaron Franceschinelli,Edivani; Stehmann,João Renato; Melo-Silva,Carlos; Neiva Mesquita Neto,José.
Rare and narrowly endemic species are more vulnerable to extinction due to their restricted geographical distribution. the genus Petunia has 14 species and most of them are endemic to a restricted area. Four Petunia species that grow in Southern Brazil were studied: P. bonjardinensis, P. reitzii, P. integrifolia subsp. depauperata, and P. exserta. We presented a preliminary study on the genetic diversity of five populations of Petunia, using allozyme markers. For the genetic analyses, allozyme electrophoresis was carried out and eight enzyme systems were reliably scored. Standard measures of allozyme diversity were calculated. The highest genetic diversity and the highest fixation index was found in the two studied populations of P. bonjardinensis (P = 90,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Allozyme; Rare species; Tropical plants.
Ano: 2013 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932013000200003
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