Crossing and diagnostic methods of cubiu hybrid plants based on genetic markers

The objective of this study was to evaluate the effect of different artificial cross pollination techniques in cubiu(Solanum sessiliflorum) for breeding purposes and genetic control studies of economically important traits. The varietiesSanta Luzia and Thaís, with and without protection with organza...

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Published in:	Crop breeding and applied biotechnology Vol. 8; no. 4; pp. 283 - 290
Main Authors:	Pizzinato, J.R., Schuelter, A.R., Amaral Júnior, A.T., Rocha, A.C.S., Siva, J.M., Volkweis, C.R., Freitas, M.B., Ricardo, F., Schwantes, D.O.
Format:	Journal Article
Language:	English
Published:	Vicosa Crop Breeding and Applied Biotechnology 2008 Brazilian Society of Plant Breeding
Subjects:	allogamy controlled crosses Diagnostic systems genetic control Genetic markers Solanum sessiliflorum
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Summary:	The objective of this study was to evaluate the effect of different artificial cross pollination techniques in cubiu(Solanum sessiliflorum) for breeding purposes and genetic control studies of economically important traits. The varietiesSanta Luzia and Thaís, with and without protection with organza cloth, were used in natural crosses and crosses withemasculation. The methods were evaluated for pollination efficiency and fruit traits, namely: weight, length, width, length/width ratio and mean number of seeds. RAPD analysis indicated that all progenies were derived from the controlled crosses,which confirmed the pollination efficiency of the methods applied. The pollination efficiency varied from 4.57% to 8.37%among the crosses. The use of emasculation without organza cover was statistically best for fruit yield. The variety SantaLuzia is recommended as female parent for hybridization. Crossing seems to be the predominant mechanism of reproductionin this species.
ISSN:	1984-7033 1518-7853 1984-7033
DOI:	10.12702/1984-7033.v08n04a05