Cytological and reproductive behaviour of Setaria pflanzii (Poaceae)

Authors

  • Irene Caponio Cátedra de Genética y Fitotecnia, Facultad de Ciencias Agrarias, Universidad Nacional del Nordeste, Sargento Cabral 2131, 3400 Corrientes.
  • José F. Pensiero Cátedra de Botánica Sistemática Agronómica, Facultad de Ciencias Agrarias, Universidad Nacional del Litoral, Luis Kreder 2805, 3080 Esperanza, Santa Fe.

DOI:

https://doi.org/10.14522/darwiniana.2014.401-4.237

Keywords:

Setaria pflanzii, Embryology, Autogamy, Breeding system

Abstract

Setaria pflanzii is a wild species native to northwestern Argentina, SE of Bolivia and NE of Paraguay, with a potential of forage production and good palatability. The objective of this work was to determine its chromosome number, meiotic chromosome behavior and reproductive system. Our results indicate that  S. pflanzii would be an allotetraploid (2n=4x=36) with regular segregation and a mean of chromosome association of 0.21 I, 17.76 II and 0.02 IV per pollen mother cell. Pollen viability, seed production and embryological observations indicate that  S. pflanzii is sexual, mainly autogamous species.

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Published

31-12-2002

How to Cite

Caponio, I., & Pensiero, J. F. (2002). Cytological and reproductive behaviour of Setaria pflanzii (Poaceae). Darwiniana, Nueva Serie, 40(1-4), 17–23. https://doi.org/10.14522/darwiniana.2014.401-4.237

Issue

Vol. 40 No. 1-4 (2002)

Section

Reproductive Biology

License

Licencia de Creative Commons
Starting on 2012, Darwiniana Nueva Serie uses Licencia Creative Commons Atribución-NoComercial 2.5 Argentina .