落地生根胎生苗发育及其相关基因研究进展

doi:10.13560/j.cnki.biotech.bull.1985.2016.07.002

摘要/Abstract

摘要： 落地生根通过在叶片上形成胎生苗而进行无性繁殖。胎生苗在发育过程中经历了与合子胚发育类似的各个阶段。胎生苗的发育同时具有器官发生和胚胎发生的特征。研究表明,胎生苗的形成需要SHOOT MERISTEMLESS（STM）基因;LEAFY COTYLEDON 1（LEC1）基因在胎生苗发育过程中表达,但落地生根胎生苗的形成并不需要LEC1基因。FUSCA3（FUS3）基因、SAHH基因以及其他相关基因在落地生根胎生苗发育过程中的作用有待进一步的研究。对落地生根胎生苗的发育过程及相关基因进行综述,以期为相关研究提供一定的参考。

关键词: 落地生根, 胎生苗, STM, LEC1, FUS3

Abstract: Kalanchoë daigremontiana reproduces asexually by forming plantlets on the leaves. During the developing process,the plantlets experience the various stages similar to that of zygotic embryo. The development of the plantlet share features of both organogenesis and embryogenesis. Research has shown that SHOOT MERISTEMLESS（STM）gene is required for the formation of plantlet. LEAFY COTYLEDON 1（LEC1）gene is expressed during the development of plantlet,however,it is not needed in the formation of the plantlet of K. daigremontiana. The functions of FUSCA3（FUS3）,SAHH and other relevant genes in the development of the plantlet of K. daigremontiana still needs further investigation. This paper summarized the development of K. daigremontiana plantlet and relevant genes,aiming at providing some references for related researches.

Key words: Kalanchoë, daigremontiana, plantlet, STM, LEC1, FUS3

蒋文婷, 曾会明. 落地生根胎生苗发育及其相关基因研究进展[J]. 生物技术通报, 2016, 32(7): 13-20.

JIANG Wen-ting ZENG Hui-ming. Research Progress on Plantlet Development and Relevant Genes of Kalanchoë daigremontiana[J]. Biotechnology Bulletin, 2016, 32(7): 13-20.

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