TY - JOUR
T1 - Morphological analysis of female gametophyte development in thebel1 stk shp1 shp2mutant
AU - Battaglia, Raffaella
AU - Brambilla, V
AU - Colombo, L.
PY - 2008
Y1 - 2008
N2 - In Arabidopsis thaliana, cell fate in developing ovules is determined by the action of the homeodomain factor BELL1 (BEL1)
and of the MADS-box factors SEEDSTICK (STK), SHATTERPROOF1 (SHP1) and SHP2. The analysis of the bel1 and
the stk shp1 shp2 mutants revealed that the functional megaspore is formed, however, it does not proceed into
megagametogenesis. In the bel1 stk shp1 shp2, quadruple mutant megasporogenesis does not take place. In this article we
describe a detailed morphological analysis of the quadruple mutant, and we discuss the possibility that BELL1, STK, SHP1
and SHP2 not only control integument identity determination and development, but that they might also play a role during
megasporogenesis.
AB - In Arabidopsis thaliana, cell fate in developing ovules is determined by the action of the homeodomain factor BELL1 (BEL1)
and of the MADS-box factors SEEDSTICK (STK), SHATTERPROOF1 (SHP1) and SHP2. The analysis of the bel1 and
the stk shp1 shp2 mutants revealed that the functional megaspore is formed, however, it does not proceed into
megagametogenesis. In the bel1 stk shp1 shp2, quadruple mutant megasporogenesis does not take place. In this article we
describe a detailed morphological analysis of the quadruple mutant, and we discuss the possibility that BELL1, STK, SHP1
and SHP2 not only control integument identity determination and development, but that they might also play a role during
megasporogenesis.
KW - Arabidopsis thaliana, MADS-box genes, ovule development, megasporogenesis, megagametogenesis
KW - Arabidopsis thaliana, MADS-box genes, ovule development, megasporogenesis, megagametogenesis
UR - http://hdl.handle.net/10807/43311
UR - http://www.tandfonline.com/toc/tplb20/current
U2 - 10.1080/11263500802411098
DO - 10.1080/11263500802411098
M3 - Article
SN - 1126-3504
VL - 142
SP - 643
EP - 649
JO - Plant Biosystems
JF - Plant Biosystems
ER -