RRC ID 4908
Author Yamada K, Saraike T, Shitsukawa N, Hirabayashi C, Takumi S, Murai K.
Title Class D and B(sister) MADS-box genes are associated with ectopic ovule formation in the pistil-like stamens of alloplasmic wheat (Triticum aestivum L.).
Journal Plant Mol Biol
Abstract Homeotic transformation of stamens into pistil-like structures (pistillody) has been reported in cytoplasmic substitution (alloplasmic) lines of bread wheat (Triticum aestivum L.) that have the cytoplasm of a related wild species, Aegilops crassa. An ectopic ovule differentiates in the pistil-like stamen in the alloplasmic wheat. The SEEDSTICK (STK)-like class D MADS-box gene, wheat STK (WSTK), was expressed in the primordia of ectopic ovules in the pistil-like stamens as well as in the true pistil, suggesting that ectopic ovule formation results from WSTK expression in the pistil-like stamens of alloplasmic wheat. The ectopic ovule is abnormal as it fails to form complete integuments. Based on the expression pattern of WSTK and B(sister) MADS-box gene, WBsis (wheat B ( sister )), we conclude that WSTK plays a role in determination of ovule identity in the pistil-like stamen, but complete ovule development fails due to aberrant expression of WBsis.
Volume 71(1-2)
Pages 1-14
Published 2009-9-1
DOI 10.1007/s11103-009-9504-z
PMID 19488678
MeSH Actins / genetics DNA Primers Flowers / genetics Flowers / growth & development* Flowers / physiology Gene Expression Regulation, Plant Genes, Plant MADS Domain Proteins / genetics* Phylogeny Plant Proteins / genetics Pollen / physiology Reverse Transcriptase Polymerase Chain Reaction Seeds / physiology Triticum / genetics* Triticum / growth & development
IF 3.302
Times Cited 33
WOS Category PLANT SCIENCES BIOCHEMISTRY & MOLECULAR BIOLOGY
Resource
Wheat LPGKU2269(Chinese Spring) LPGKU2039(CS Ditelosomic 7BS)