秋水仙素诱导樱桃矮化砧木'吉塞拉6号'获得六倍体再生植株

园艺学报 ›› 2008, Vol. 35 ›› Issue (2): 285-288.

秋水仙素诱导樱桃矮化砧木'吉塞拉6号'获得六倍体再生植株

刘庆忠^{1, 2};马怀宇²;魏海蓉 ²;艾呈祥²;张力思²;赵彦³;罗伯特·戴维斯³;韩振海^{1 *}

(¹中国农业大学园艺植物研究所，北京 100094；²山东省果树研究所, 山东省果树生物技术育种重点实验室，山东泰安 271000；³ 美国农业部植物分子病理学实验室，美国马里兰州贝茨威尔 20705)

收稿日期:2007-08-01 修回日期:2007-11-16 出版日期:2008-02-25 发布日期:2008-02-25
通讯作者: 韩振海

Regeneration of Hexaploid Plants of Cherry Dwarf Rootstock 'Gisela 6' from in vitro Leave Treated with Colchicine

LIU Qing-zhong ^{1, 2}, MA Huai-yu ², WEI Hai-rong ², AI Cheng-xiang ² , ZHANG Li-si ² , ZHAO Yan ³, ROBERT E. Davis³ , and HAN Zhen-hai ^{1, *}

（¹ Institute of Horticulture Plants, China Agriculture University, Beijing 100094, China; ²Shandong Institute of Pomology, Key Laboratory for Fruit Biotechnology Breeding of Shandong, Tai' an, Shandong, 271000, China; ³USDA/ARS Molecular Plant Pathology Laboratory, Beltsville, MD 20705, USA）

Received:2007-08-01 Revised:2007-11-16 Online:2008-02-25 Published:2008-02-25
Contact: HAN Zhen-hai

摘要/Abstract

摘要：

以三倍体樱桃矮化砧木'吉塞拉6号'（Prunus ceransus × P. canescens）的离体叶片为外植体，采用秋水仙素诱导处理再生出六倍体植株。将外植体首先在加有秋水仙素（50 mg. L-1）、生长素（IBA 0.5 mg. L-1）和细胞分裂素（BA 5.0 mg. L-1）的改良WPM液体培养基中培养5 d，再转移到不含秋水仙素（其它成分相同）的固体培养基上继续培养56 d，再生出形态变异明显的新梢。采用流式细胞仪鉴定染色体倍性，确定其为六倍体新梢。六倍体植株与三倍体的'吉塞拉6号'植株形态学上有明显差异。六倍体的试管苗已在大田移栽成活，并已成功高接在甜樱桃大树上。

关键词: 樱桃, 矮化, 砧木, 秋水仙素, 多倍体, 六倍体, 再生植株

Abstract: An in vitro shoot regeneration technique combined with colchicine application has been employed to produce hexaploid plants from leaf segments of the triploid cherry rootstock Gisela 6 (Prunus ceransus× P.canescens). Leaf segments were treated firstly with colchicine (0~200 mg. L-1) in the liquid modified WPM medium supplemented with auxin (IBA 0.5 mg. L-1) and cytokinin (BA 5.0 mg. L^-1) for five days and then transferred on the same regeneration solid medium with no colchicine for 56 days. In this case, putative hexaploid shoots were only regenerated from the leaf explants in the treatment of 50 mg. L-1 colchicine after 8 weeks on the regeneration medium. Flow cytometry was used for ploidy determination. The hexaploid plants were distinguishable from the triploid on morphological characters. All plants were successfully transplanted into the field and topworked on the sweet cherry trees to evaluate its agronomic traits.

Key words: cherry, dwarf, rootstock, colchicines, polyploid, hexaploid, regeneration

中图分类号:

S 665.2

刘庆忠;;马怀宇;魏海蓉;艾呈祥;张力思;赵彦;罗伯特·戴维斯;韩振海 . 秋水仙素诱导樱桃矮化砧木'吉塞拉6号'获得六倍体再生植株[J]. 园艺学报, 2008, 35(2): 285-288.

LIU Qing-zhong;;MA Huai-yu;WEI Hai-rong;AI Cheng-xiang ;ZHANG Li-si ;ZHAO Yan;ROBERT E. Davis;and HAN Zhen-hai;. Regeneration of Hexaploid Plants of Cherry Dwarf Rootstock 'Gisela 6' from in vitro Leave Treated with Colchicine[J]. ACTA HORTICULTURAE SINICA, 2008, 35(2): 285-288.

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