Albertini, Emidio and Porceddu, Andrea and Ferranti, Francesco and Reale, Lara and Barcaccia, Gianni and Romano, Bruno and Falcinelli, Mario (2001) Apospory and parthenogenesis may be uncoupled in Poa pratensis: a cytological investigation. Sexual Plant Reproduction, Vol. 14 (4), p. 213-217. eISSN 1432-2145. Article.
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Despite the potential that apomixis has for agriculture, there is little information regarding the genetic control of its functional components. We carried out a cytohistological investigation on an F1 segregating population of Poa pratensis obtained from a cross between a sexual and an apomictic parent. About half of the F1 progeny plants were parthenogenic, as adjudicated by an auxin test. The degree of parthenogenesis ranged from 1.44% to 92.9%. Apospory was detected in parthenogenetic plants as well as in two non-parthenogenetic individuals. These results indicate that two distinct genetic factors control apospory and parthenogenesis in P. pratensis and that apospory and parthenogenesis may be developmentally uncoupled.
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