4 Search Results
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A synthesis of transcriptomic surveys to dissect the genetic basis of C4 photosynthesis
C4 photosynthesis is used by only three percent of all flowering plants, but explains a quarter of global primary production, including some of the worlds’ most important cereals and bioenergy grasses. Recent advances in our understanding of C4 development can be attributed to the application of comparative transcriptomics approaches that has been fueled by high throughput sequencing. Global surveys of gene expression conducted between different developmental stages or on phylogenetically closely related C3 and C4 species are providing new insights into C4 function, development and evolution. Importantly, through co-expression analysis and comparative genomics, these studies help define novel candidate genesmore » -
Sparse panicle1 is required for inflorescence development inSetaria viridis and maize
Setaria viridis is a rapid-life-cycle model panicoid grass. Here, to identify genes that may contribute to inflorescence architecture and thus have the potential to influence grain yield in related crops such as maize, we conducted an N-nitroso-N-methylurea (NMU) mutagenesis of S. viridis and screened for visible inflorescence mutant phenotypes. Of the approximately 2,700 M2 families screened, we identified four recessive sparse panicle mutants (spp1-spp4) characterized by reduced and uneven branching of the inflorescence. To identify the gene underlying the sparse panicle1 (spp1) phenotype, we performed bulked segregant analysis and deep sequencing to fine map it to an approximately 1 Mbmore »
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