Flowering and Pollen Fertility of an Interspecific CitrusHexaploid Somatic Hybrid

ACTA HORTICULTURAE SINICA ›› 2007, Vol. 34 ›› Issue (1): 71-74.

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Flowering and Pollen Fertility of an Interspecific CitrusHexaploid Somatic Hybrid

GUO Wen-wu
^*;CHEN Chun-li; DENG Yu-yang; DENG Xiu-xin

(National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China)

Received:1900-01-01 Revised:1900-01-01 Online:2007-02-25 Published:2007-02-25

Abstract

Abstract: Interspecific hexap loid somatic hybrid between J incheng orange and HR
(Hamlin orange + Rough lemon ) regenerated via electrofusion flowered seven years after
transp lantation in greenhouse. Flow cytometry analysis further confirmed its true hexap loid
nature. Its pollen stainability and germinabilitywas 40.8% and 3.7% , respectively. In 2006,
the hexalpoid plant flowered again and its pollen stainability was 20.3%. Since there is no
natural citrus hexaploid plant, this is the first report of fertile hexap loid somatic hybrid plant in
Citrus.

Key words: Citrus, Hexaploid, Somatic hybrid, Flowering, Fertility evaluation

GUO Wen-wu;CHEN Chun-li;DENG Yu-yang;DENG Xiu-xin. Flowering and Pollen Fertility of an Interspecific CitrusHexaploid Somatic Hybrid[J]. ACTA HORTICULTURAE SINICA, 2007, 34(1): 71-74.

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Flowering and Pollen Fertility of an Interspecific CitrusHexaploid Somatic Hybrid

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