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A SECTORIAL ENTIRE‐PINNATE LEAF CHIMERA IN THE POTATO VARIETY MAJESTIC
Author(s) -
HOWARD H. W.
Publication year - 1966
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.1966.tb06363.x
Subject(s) - primordium , chimera (genetics) , biology , botany , shoot , horticulture , genetics , gene
S ummary The docken‐ (entire‐) leaf sport in the potato variety Majestic is a periclinal chimera in which L 2 and L 3 have a mutation for entire leaf but in which L 1 has the unchanged genotype for normal pinnate leaves. A shoot was found after X‐ray treatment which had pinnate, entire and sectorial leaves. The arrangement of leaves on this shoot would fit a hypothesis postulating only two initial cells for L 2 . The L 2 of leaf primordia may trace back to only two cells at a time when the L 2 has about sixteen or thirty‐two cells as seen in transverse section.