Cell death processes during expression of hybrid lethality in interspecific F(1) hybrid between Nicotiana gossei domin and Nicotiana tabacum

From: Plant Physiology | Date: December 1, 2002| Author: Inoue, Masayoshi; Maekawa, Kenji; Ogawa, Ken'ichi; Yamagishi, Hiroshi; Mino, Masanobu | Copyright information

Hybrid lethality, a type of reproductive isolation, is a genetically controlled event appearing at the seedling stage in interspecific hybrids. We characterized the lethality of F^sub 1^ hybrid seedlings from Nicotiana gossei Domin and Nicotiana tabacum cv Bright-Yellow 4 using a number of traits including growth rate, microscopic features of tissues and cells, ion leakage, DNA degradation, reactive oxygen intermediates including superoxide radical (O^sub 2^^sup -^) and hydrogen peroxide (H^s...

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