کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2181294 1095287 2008 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A putative pheromone signaling pathway is dispensable for self-fertility in the homothallic ascomycete Gibberella zeae
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیولوژی سلول
پیش نمایش صفحه اول مقاله
A putative pheromone signaling pathway is dispensable for self-fertility in the homothallic ascomycete Gibberella zeae
چکیده انگلیسی

Gibberella zeae, a homothallic ascomycetous fungus, does not seek a partner for mating. Here, we focused on the role(s) of putative pheromone and receptor genes during sexual development in G. zeae. Orthologs of two pheromone precursor genes (GzPPG1 and GzPPG2), and their cognate receptor genes (GzPRE2 and GzPRE1) were transcribed during sexual development. The expression of these genes was controlled by the mating-type (MAT) locus and a MAP kinase gene, but not in a MAT-specific manner. Targeted gene deletion and subsequent outcrosses generated G. zeae strains lacking these putative pheromone/receptor genes in various combinations (from single to quadruple deletions). All G. zeae deletion strains were similar to the self-fertile progenitor in both male- and female fertility and other traits. Sometimes, the deletions including ΔGzPPG1;ΔGzPRE2 caused increased numbers of immature perithecia. Taken together, it is clear that these putative pheromones/receptors play a non-essential role in the sexual development of G. zeae.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fungal Genetics and Biology - Volume 45, Issue 8, August 2008, Pages 1188–1196
نویسندگان
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