biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 52:771-774, 2008 | DOI: 10.1007/s10535-008-0150-0

Flooding tolerance and genetic diversity in populations of Luehea divaricata

M. C. C. G. De Carvalho1, D. C. G. Da Silva1, P. M. Ruas1, M. E. Medri2, E. A. Ruas3, C. F. Ruas1,*
1 Departamento de Biologia Geral, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
2 Departamento de Biologia Animal e Vegetal, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
3 Departamento de Agronomia, Universidade Estadual de Londrina, Londrina, Paraná, Brazil

We investigated some aspects of flooding tolerance in two riparian populations (exposed and no exposed to flooding) of Luehea divaricata C. Martius. Plants derived from seeds collected in each population were submitted to flooding (30 and 60 d), submergence and re-aeration treatments. Plants exposed to flooding showed development of aerenchyma, hypertrophic lenticels and new adventitious roots. Interestingly, whereas the plants originated from population naturally exposed to flooding developed some of these alterations more markedly, they could not survive when totally submerged. The random amplified polymorphic DNA (RAPD) markers, showed a significant difference between populations, suggesting that seasonal flooding on riparian populations of L. divaricata has been selecting individuals who are more adapted to survive in these conditions.

Keywords: adventitious roots; aerenchyma; hypertrophic lenticels; RAPD; riparian populations
Subjects: flooding and recovery; flooding and recovery; genetic diversity, biodiversity; in vitro culture, regeneration; Luehea divaricata; random amplified polymorphic DNA (RAPD)

Received: August 19, 2007; Accepted: September 22, 2008; Published: December 1, 2008  Show citation

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De Carvalho, M.C.C.G., Da Silva, D.C.G., Ruas, P.M., Medri, M.E., Ruas, E.A., & Ruas, C.F. (2008). Flooding tolerance and genetic diversity in populations of Luehea divaricata. Biologia plantarum, 52(4), 771-774. doi: 10.1007/s10535-008-0150-0
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