Premium
FATE MAP OF THE ORGANIZING SHOOT APEX IN GOSSYPIUM
Author(s) -
Christianson M. L.
Publication year - 1986
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1986.tb08538.x
Subject(s) - biology , apex (geometry) , cotyledon , botany , shoot , embryo , apical cell , compartment (ship) , microbiology and biotechnology , genetics , epithelium , oceanography , geology
Chimeral seedlings from a “semigametic” strain of cotton were used as the basis for a clonal analysis of events in the progressive organization of the nascent shoot apex. At the time the proembryo becomes a globular stage embryo with a distinct dermatogen, the surface of the embryo contains an eight‐celled compartment for each cotyledon, a two‐celled compartment for the first leaf, a one‐celled compartment for the second leaf, and a three‐celled compartment for the apical initials and all subsequent leaves and aerial structures. The developmental history of the first two leaves differs in a fundamental way from that of all the other leaves.