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Apospory and parthenogenesis may be uncoupled in Poa pratensis: a cytological investigation

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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DOI: 10.1007/s00497-001-0116-2

Abstract

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.

Item Type:Article
ID Code:4059
Status:Published
Refereed:Yes
Uncontrolled Keywords:Poa pratensis L., apomixis, apospory, parthenogenesis, cytohistology
Subjects:Area 07 - Scienze agrarie e veterinarie > AGR/07 Genetica agraria
Divisions:001 Università di Sassari > 01 Dipartimenti > Scienze agronomiche e genetica vegetale agraria
Publisher:Springer Berlin / Heidelberg
eISSN:1432-2145
Deposited On:28 Jun 2010 15:59

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