A novel bud mutation that confers abnormal patterns of lycopene accumulation in sweet orange fruit (Citrus sinensis L. Osbeck).

A novel bud mutation that confers abnormal patterns of lycopene accumulation in sweet orange fruit (Citrus sinensis L. Osbeck). Research Abstract Details 

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A novel bud mutation that confers abnormal patterns of lycopene accumulation in sweet orange fruit (Citrus sinensis L. Osbeck). Abstract Text:

Qing Liu,Juan Xu,Yongzhong Liu,Xiaolong Zhao,Xiuxin Deng,Linlin Guo,Jianqin Gu,Qing Liu,Juan Xu,Yongzhong Liu,Xiaolong Zhao,Xiuxin Deng,Linlin Guo,Jianqin Gu,

A novel, pleiotropic sweet orange (Citrus sinensis L. Osbeck) mutant, 'Hong Anliu', is described. This mutation causes carotenoid accumulation, high sugar, and low acid in the fruits. Gas chromatographic analysis revealed that high sugar and low acid in the fruit were caused by the accumulation of sucrose and the deficiency of citric acid. The dominant carotenoid accumulated in albedo, segment membranes, and juice sacs is lycopene, which can reach levels that are a 1000-fold higher than those in comparable wild-type fruits. This mutation does not affect the carotenoid composition of leaves. Carotenoid concentration and biosynthetic gene expression of albedo, segment membranes, and juice sacs were dramatically altered by the mutation. Lycopene accumulation in the juice sacs was regulated by co-ordinate expression of carotenoid biosynthetic genes. However, in albedo and segment membranes, the expression of downstream carotenogenic genes seems to be feedback induced by lycopene accumulation. This implies that there must be at least two modes regulating lycopene accumulation in 'Hong Anliu' fruit. Taken together, these results suggest that massive amounts of lycopene might be synthesized in the juice sacs and then transported to the segment membrane and the albedo, which leads to lycopene accumulation there.

A novel bud mutation that confers abnormal patterns of lycopene accumulation in sweet orange fruit (Citrus sinensis L. Osbeck). Publishing Authors By Initials

Q Liu,J Xu,Y Liu,X Zhao,X Deng,L Guo,J Gu,Q Liu,J Xu,Y Liu,X Zhao,X Deng,L Guo,J Gu,

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A novel bud mutation that confers abnormal patterns of lycopene accumulation in sweet orange fruit (Citrus sinensis L. Osbeck). Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of experimental botany

VOLUME: 58

Page Numbers: 4161-71

Journal Abbreviation: J. Exp. Bot.

ISSN: 0022-0957

DAY: 9

MONTH: 01

YEAR: 2007

A novel bud mutation that confers abnormal patterns of lycopene accumulation in sweet orange fruit (Citrus sinensis L. Osbeck). Information

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LANGUAGE: eng

NlmUniqueID: 9882906

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Grant and Affiliation Information for A novel bud mutation that confers abnormal patterns of lycopene accumulation in sweet orange fruit (Citrus sinensis L. Osbeck).

AFFILIATION: National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, PR China.

Country: England

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MEDLINETA: J Exp Bot

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