Abstract
Angiosperm flower organ formation is regulated by three conserved groups of MADS-box genes, but the function of a fourth conserved group, the TM3 orthologues, remains unclear. We report the isolation of six different MADS- box cDNAs from male cones of the gymnosperm Pinus radiata. All are orthologues of TM3 and two encode proteins with different sized deletions within the conserved K domain. Both the deletions and the large number of paralogous duplications within one clade of MADS-box genes are unusual and indicate that this gene family may have been under selection to evolve new functions in conifers.
Original language | English (US) |
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Pages (from-to) | 167-176 |
Number of pages | 10 |
Journal | Plant Science |
Volume | 138 |
Issue number | 2 |
DOIs | |
State | Published - Nov 23 1998 |
Keywords
- Gymnosperm
- K-domain
- MADS-box
- Pinus radiata
- TM3
ASJC Scopus subject areas
- Genetics
- Agronomy and Crop Science
- Plant Science