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Field evaluation of transgenic pineapple (Ananas comosus (L.) Merr.) cv. ‘Smooth Cayenne’ for resistance to blackheart under subtropical conditions

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Ko, L., Eccleston, K., O’Hare, T., Wong, L., Giles, J. and Smith, M. (2013) Field evaluation of transgenic pineapple (Ananas comosus (L.) Merr.) cv. ‘Smooth Cayenne’ for resistance to blackheart under subtropical conditions. Scientia Horticulturae, 159 . pp. 103-108. ISSN 0304-4238

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Article Link: http://dx.doi.org/10.1016/j.scienta.2013.05.006

Publisher URL: http://www.sciencedirect.com/science/article/pii/S0304423813002239

Abstract

A comparative analysis of transgenic pineapple lines transformed with a polyphenol oxidase (PPO) gene (ppo) and the untransformed cultivar ‘Smooth Cayenne’ was made from plants grown in a series of field trials under cool subtropical conditions in southeast Queensland. In the four field trials where blackheart was recorded, all of the control lines expressed blackheart on each occasion and exhibited the greatest incidence (50%) and severity (34%) of symptoms. Irrespective of the gene transfer method or the gene construct used, 38% of the lines produced were regarded as blackheart resistant, having no blackheart symptoms in two or more trials. Five blackheart resistant transgenic lines consistently performed as well as or better than control plants in terms of fruit characteristics and quality.

Item Type:Article
Business groups:Horticulture and Forestry Science
Keywords:Genetic modification Genetic engineering Gene silencing Blackheart disorder Polyphenol oxidase (PPO) Transgenic pineapple Field evaluation
Subjects:Plant culture > Fruit and fruit culture
Plant pests and diseases
Live Archive:01 Jul 2014 01:09
Last Modified:03 Sep 2021 16:49

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