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Phloem-mobile signals affecting flowers: applications for crop breeding.

机译:韧皮部移动信号影响花卉:作物育种的应用。

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摘要

Transport of endogenous macromolecules within and between tissues serves as a signaling pathway to regulate numerous aspects of plant growth. The florigenic FT gene product moves via the phloem from leaves to apical tissues and induces the flowering program in meristems. Similarly, short interfering RNA (siRNA) signals produced in source or sink tissues move cell-to-cell and long distance via the phloem to apical tissues. Recent advances in identifying these mobile signals regulating flowering or the epigenetic status of targeted tissues can be applicable to crop-breeding programs. In this review, we address the identity of florigen, the mechanism of allocation, and how virus-induced flowering and grafting of transgenes producing siRNA signals affecting meiosis can produce transgene-free progenies useful for agriculture.
机译:组织内和组织之间的内源性大分子运输充当调节植物生长的许多方面的信号传导途径。产氟FT基因产物通过韧皮部从叶片移动到顶端组织,并诱导分生组织的开花程序。类似地,在源或汇组织中产生的短干扰RNA(siRNA)信号会通过韧皮部移动到细胞之间,而长距离移动到根尖组织。识别这些调节开花或目标组织表观遗传状态的移动信号的最新进展可应用于作物育种计划。在这篇综述中,我们讨论了荧光素的身份,分配机制以及病毒诱导的开花和嫁接产生影响减数分裂的siRNA信号的转基因可以产生无转基因的后代,这些后代可用于农业。

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