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| Title: Spatially and temporally regulated expression of rice MADS box genes with similarity to Arabidopsis class A , B and C genes .
| | Author: Kyozuka J Kobayashi T Morita M Shimamoto K | | Journal: Plant Cell Physiol .
Citation: V : 41 ( 6 ) P : 710-8 Year: 2000 Type: ARTICLE | | Literature: oryza Field: abstract Doc ID: pub10945340 | | Abstract: The floral morphology of grass species is distinct from that of typical dicot plants .
In order to achieve a better understanding of the molecular basis for this diversion , we isolated RAP1A , RAP1B and RAG , putative rice orthologs for the Arabidopsis class A gene APETALA1 ( AP1 ) and class C gene AGAMOUS ( AG ) .
The expression patterns of RAP1A , RAG and OsMADS2 , a rice ortholog of the class B gene , were analyzed by in situ hybridization .
RAP1A mRNA was expressed in the apical region of the floral meristem at an early stage of spikelet development , and then its expression was localized in developing lemma , palea and lodicules .
The OsMADS2 transcript was first observed in the region where stamen primordia are formed .
Soon after , OsMADS2 mRNA appeared in the lodicule primordia as well as the stamen primordia , and this RNA accumulation pattern persisted until late stages of floral development .
The expression of RAG was observed in stamens and pistils of wild-type young spikelets .
These RNA accumulation patterns are mostly similar to those of Arabidopsis class A , B , C genes , supporting the notion that the ABC model may be extended to rice . | Matching Sentences:
[ Sen. 2, subscore: 1.00 ]: In order to achieve a better understanding of the molecular basis for this diversion , we isolated RAP1A , RAP1B and RAG , putative rice orthologs for the Arabidopsis class A gene APETALA1 ( AP1 ) and class C gene AGAMOUS ( AG ) .
[ Sen. 3, subscore: 1.00 ]: The expression patterns of RAP1A , RAG and OsMADS2 , a rice ortholog of the class B gene , were analyzed by in situ hybridization .
[ Sen. 4, subscore: 1.00 ]: RAP1A mRNA was expressed in the apical region of the floral meristem at an early stage of spikelet development , and then its expression was localized in developing lemma , palea and lodicules .
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