A fungal parasite regulates a putative female-suppressor gene homologous to maize tasselseed2 and causes induced hermaphroditism in male buffalograss

Molecular Plant-microbe Interactions : MPMI
Ambika Chandra, David R Huff

Abstract

Parasitically induced hermaphroditism is a fascinating illustration of floral sex organ modification; however, knowledge of how parasites induce hermaphroditism in plants is limited. Here, we show the fungal parasite pistil smut induces development of female sex organs (pistils) in flowers of male buffalograss, potentially by downregulating a putative female-suppressor gene, BdTs2, homologous to maize Tasselseed2 (ZmTs2). Full-length BdTs2, isolated using rapid amplification of cDNA ends, exhibits 89% nucleotide sequence similarity with ZmTs2 and 85% amino acid sequence homology with ZmTs2 protein. Scanning electron micrographs demonstrate that unisexual buffalograss flowers develop through a process of selective abortion of opposite sex organs within hermaphroditic floral primordia. Quantitative real-time polymerase chain reaction showed that high expression levels of BdTs2 within male inflorescences correlate with the selective abortion of gynoecium, leading to the development of unisexual male flowers. RNA in situ hybridization confirmed the expression of BdTs2 precisely within vestigial gynoeciums of male flowers and not in other floral organs of the inflorescence. Furthermore, we show that BdTs2 expression is downregulated...Continue Reading

References

Apr 15, 1997·Proceedings of the National Academy of Sciences of the United States of America·D LiS L Dellaporta
Jan 27, 1999·Bioinformatics·D Posada, K A Crandall
Mar 17, 1999·American Journal of Botany·L G Le Roux, E A Kellogg
Mar 13, 2001·Plant Physiology·E A Kellogg
Apr 5, 2002·Heredity·Deborah Charlesworth
Apr 23, 2002·Nature Reviews. Genetics·Spencer C H Barrett
Jan 1, 1958·Advances in Genetics·M WESTERGAARD
Nov 15, 2003·Molecular Phylogenetics and Evolution·M S KinneyE A Friar
Dec 12, 2003·Proceedings. Biological Sciences·Michael E Hood, Janis Antonovics
Jul 21, 2004·Briefings in Bioinformatics·Sudhir KumarMasatoshi Nei
Mar 6, 2007·Journal of Experimental Botany·Esteban Bortiri, Sarah Hake
Aug 19, 2008·The American Naturalist·Janis AntonovicsJessica Partain
Dec 17, 2008·Plant Molecular Biology·Rajendra Bari, Jonathan D G Jones
May 1, 1991·Trends in Ecology & Evolution·K Clay
Mar 1, 2002·American Journal of Botany·Helen J Young
Sep 1, 1993·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·D R HuffP E Smouse
Jul 1, 1985·Evolution; International Journal of Organic Evolution·Joseph Felsenstein

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