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GrainGenes Reference Report: PPS-100-1744

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Reference	PPS-100-1744
Title	Identification of embryoid-abundant genes that are temporally expressed during pollen embryogenesis in wheat anther cultures
Journal	Plant Physiology
Year	1992
Volume	100
Pages	1744-1750
Author	Reynolds T Kitto S
Abstract	Uninucleate microspores in anther cultures of bread wheat (Triticum aestivum cv Pavon) are capable of producing haploid pollen embryoids and plants To gain an understanding of this alternate pathway of pollen development, we constructed a cDNA library to young pollen embryoids, isolated embryoid-specific genes, and analyzed their expression patterns during morphogenesis Two embryoid-abundant clones, pEMB4 and 94, were expressed very early during culture, suggesting that these genes are associated with development and are not simply expressed as a consequence of differentiation The accumulation patterns of five cloned mRNAs may indicate the activation of specific genes associated with the major morphological and physiological activities connected with the differentiation of embryoids in vitro These results suggest that embryoid-abundant gene expression is causally related to this pathway because gene expression is spatially and temporally specific and is not observed when microspores are cultured under noninductive conditions
Keyword	[ Hide all but 1 of 9 ] anther-culture complementary dna embryogenesis gametogenesis gene expression genes messenger rna pollen triticum aestivum

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