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Establishment of a highly efficient regeneration method from the scraped broken embryo of mature barley seed

文献类型: 外文期刊

作者: Hua, Wei 1 ; Zhu, Jinghuan 1 ; Shang, Yi 1 ; Wang, Junmei 1 ; Jia, Qiaojun 1 ; Lin, Feng 1 ; Yang, Jianming 1 ;

作者机构: 1.Zhejiang Acad Agr Sci, Natl Barley Improvement Ctr, Inst Crop & Nucl Technol Utilizat, Hangzhou 310021, Zhejiang, Peoples R China

关键词: Barley;callus induction;mature embryo;plant regeneration;scraped broken embryo

期刊名称:CANADIAN JOURNAL OF PLANT SCIENCE ( 影响因子:1.018; 五年影响因子:1.242 )

ISSN: 0008-4220

年卷期: 2013 年 93 卷 6 期

页码:

收录情况: SCI

摘要: An efficient and reproducible plant regeneration system for mature barley would represent a significant innovation for barley tissue culture and genetic transformations to optimize barley crop traits. To address this need, we used scraped broken embryos (SBEs) from dried barley seeds to establish a highly efficient regeneration system. Mature SBEs cultured in an induction medium with 2 mg L-1 2,4-D offered the best callus formation (92.99% induction efficiency) and no germination. Furthermore, call arising from SBEs had the highest regeneration frequency (69.72%) in FHG medium with 1 mg L-1 6-benzylaminopurine. We then compared three different cultivars: Golden Promise, Zaoshu3, and Zhepi8 for callogenesis and regeneration using an established protocol. Zhepi8 had the greatest callus induction (92.78%) and regeneration (68.24%). Our innovative methods for mature barley plant reproduction will contribute to improvements in genetic barley transformation as an alternate regeneration system.

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