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Extending the storage season of apples through selection of low ethylene breeding lines

Extending the storage season of apples through selection of low ethylene breeding lines

Colgan, Richard and Fernandez, Felicidad (2013) Extending the storage season of apples through selection of low ethylene breeding lines. In: Fruits and Roots: A Celebration and Forward Look. Aspects of Applied Biology (119). Association of Applied Biologists, Wellesbourne, Warwick, UK, pp. 119-126. ISSN 0265-1491

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Abstract

Improving the storage life of apples will help to extend scheduling of crop onto the UK market. Good storage life is associated with a slow decline of firmness coupled with full
development of aroma and flavour volatiles which are physiologically associated with ethylene production. The ethylene biosynthetic pathway is controlled by two enzymes:
ACS and ACO encoded by large gene families. In this study an existing gene specific molecular markers for Md-ACS1 was mapped onto linkage group 15 of the cross Fiesta × Gloster 69. The Md-ACS1-2 allele was responsible for reduced production of the enzyme ACS and ethylene. QTL analysis determined the Md-ACS1 allele contributed to 70% of
the total variance of the low-ethylene trait, a second QTL on LG15 contributed 15% of the variance. The storage quality of low ethylene apple lines showed that while fruits
remained firm during air and CA storage synthesis of acetate ester flavour volatiles was
reduced.

Item Type: Conference Proceedings
Title of Proceedings: Fruits and Roots: A Celebration and Forward Look
Additional Information: [1] Proceeding of East Malling Centenary Conference held at East Malling Research, Kent, UK on 6-7 November 2013, 6-7 NOV 2013 [2] The AAB produces the Aspects of Applied Biology series, which are the proceedings of conferences held by the Association or of other organisations for which the AAB provides this service [3] Copyright: © 2013 The Association of Applied Biologists
Uncontrolled Keywords: Apple, storage quality, ethylene, flavour, firmness, ACC synthase, ACS1
Subjects: Q Science > QH Natural history > QH301 Biology
S Agriculture > S Agriculture (General)
S Agriculture > SB Plant culture
Faculty / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > Natural Resources Institute
Faculty of Engineering & Science > Natural Resources Institute > Food & Markets Department
Related URLs:
Last Modified: 10 Aug 2015 15:03
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/12686

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