Recalcitrant adventitious root (AR) development is a major hurdle in propagating commercially important woody plants. Although significant progress has been made to identify genes involved in subsequent steps of AR development, the molecular basis of differences in apparent recalcitrance to form AR between easy-to-root and difficult-to-root genotypes remains unknown.

中文翻译：

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杨树基因型不定生根能力差异的分子基础

顽固的不定根 (AR) 发育是繁殖具有重要商业价值的木本植物的主要障碍。尽管在鉴定 AR 发展的后续步骤中涉及的基因方面取得了重大进展，但易生根和难生根基因型之间形成 AR 的明显顽固性差异的分子基础仍然未知。