Identification of Stipules reduced, a leaf morphology gene in pea (Pisum sativum)

What is it about?

Stipules are enigmatic foliar structures at the base of leaves and in some species, such as pea, they are unusually large. To understand how stipule size is regulated, we screened for genomic DNA sequences present in normal pea types but missing from a pea deletion mutant, which had small stipules. This enabled us to isolate and characterise the gene Stipules reduced and show how it regulates cell division and expansion during stipule growth and development

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