Hybridization between Lycopersicon esculentum Mill. and Lycopersicon pennellii Cor.: pollen fertility and viability in F1 and F2 hybrids

• Published in: Bulgarian Journal of Agricultural Science (Bulgaria) Vol. 12; no. 6; pp. 767 - 774
• Main Authors: Nikolova, V, Rodeva, V
• Format: Journal Article
• Language: English
• Published: 2006
• Subjects: FERTILIDAD; FERTILITE; FERTILITY; HIBRIDACION; HIBRIDOS; http://www.fao.org/aos/agrovoc#c_26556; http://www.fao.org/aos/agrovoc#c_2862; http://www.fao.org/aos/agrovoc#c_3706; http://www.fao.org/aos/agrovoc#c_3707; http://www.fao.org/aos/agrovoc#c_4475; http://www.fao.org/aos/agrovoc#c_6071; http://www.fao.org/aos/agrovoc#c_8210; HYBRIDATION; HYBRIDE; HYBRIDIZATION; HYBRIDS; INCOMPATIBILIDAD DEL POLEN; INCOMPATIBILITE POLLINIQUE; LYCOPERSICON ESCULENTUM; LYCOPERSICON PENNELLII; POLLEN INCOMPATIBILITY; VIABILIDAD; VIABILITE; VIABILITY
• ISSN: 1310-0351

In result of this investigation it was comfirmed very high level of incompatibility between L. esculentum genotypes - line N 83602029 and Balka F1 and self-incompatibility L. pennellii accession N 914750050. Different preventing answers to the pollen germination and penetration in the stigma, style and ovary tissue and in the ovules in the reciprocal crosses of the both studied species were observed. In self pollunation of F1 and F2 hybrids and also in backcrossing with the both parents were registered the same type of strong expressed incompatibility. Compared to the plants with high pollen fertility and semi-sterility lower level of incompatibility after self pollination was registered in F2 generation in a plant with 10% fertility. Successful pollen germination and entering the tubes in the ovules was established only in pollination of mother plants L. esculentum (Balka F1) with pollen from F1 hybrid N 336.