Identification and Functional Analysis of WOX Genes in Macadamiaspp. Reveal WOX1 and WOX4 Homologs Involved in Shoot Regeneration

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Overexpressing MiWOX1b and MiWOX4a significantly enhanced de novo shoot regeneration in Nicotiana benthamiana.
Identification of 19 WOX family members in M. integrifolia, with specific expression patterns linked to regeneration.
Functional validation experiments showed that these homologs activate auxin biosynthesis genes to promote regeneration.
Findings suggest the potential for applying these genes in forest genetic engineering to improve crop yields.

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This analysis reveals the role of WOX1 and WOX4 homologs in enhancing shoot regeneration and auxin biosynthesis in Macadamia.

Mo et al. (2025) studied this question.

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