Reference "OsMADS13, a novel rice MADS-box gene expressed during ovule development"

Reference ID

2512

Title

OsMADS13, a novel rice MADS-box gene expressed during ovule development

Source

Developmental genetics, 1999, vol. 25, pp. 237-244

Authors (8)

Lopez-Dee-Z-P	Wittich-P
Enrico_Pe-M	Rigola-D
Del_Buono-I	Gorla-M-S
Kater-M-M	Colombo-L

Abstract

MADS-box genes have been shown to play a major role in defining plant
architecture. Recently, several MADS-box genes have been reported that are
highly expressed in the ovule. However, only for the Petunia genes FBP7 and
FBP11 has a function in defining ovule identity been shown. We have isolated a
rice MADS-box gene named OsMADS13. Expression analysis has shown that this gene
is highly expressed in developing ovules. In order to facilitate a detailed
characterization of rice ovule-expressed genes, a comprehensive morphological
description of ovule development in rice has been performed. The predicted amino
acid sequence of OsMADS13 shows significant homology with ZAG2, a maize MADS-box
gene, which is also expressed mainly in the ovule. Mapping of the gene in the
rice genome showed that it is located on chromosome 12, which is syntenic to two
maize regions where ZAG2 and its paralogous gene ZMM1 have been mapped. Our
results suggest that OsMADS13 is the ortholog of ZAG2 and ZMM1 and might play a
role in rice ovule and seed development.