Mating system of the anther smut fungus Microbotryum violaceum: selfing under heterothallism.

نویسندگان

  • Tatiana Giraud
  • Roxana Yockteng
  • Manuela López-Villavicencio
  • Guislaine Refrégier
  • Michael E Hood
چکیده

Mating System of the Anther Smut Fungus Microbotryum violaceum: Selfing under Heterothallism Tatiana Giraud,†* Roxana Yockteng,† Manuela López-Villavicencio, Guislaine Refrégier, and Michael E. Hood* Ecologie, Systématique et Evolution, Bâtiment 360, Université Paris-Sud, F-91405 Orsay cedex, France; CNRS, F-91405 Orsay cedex, France; MNHN, Département Systématique et Evolution, 16 rue Buffon CP 39, 75005 Paris, France; and Department of Biology, Amherst College, Amherst, Massachusetts 01002

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Hybrid sterility and inviability in the parasitic fungal species complex Microbotryum.

Microbotryum violaceum, the anther-smut fungus, forms a complex of sibling species which specialize on different plants. Previous studies have shown the presence of partial ecological isolation and F1 inviability, but did not detect assortative mating apart from a high selfing rate. We investigated other post-mating barriers and show that F1 hybrid sterility, the inability of gametes to mate, i...

متن کامل

Evolutionary strata in a small mating-type-specific region of the smut fungus Microbotryum violaceum.

DNA sequence analysis and genetic mapping of loci from mating-type-specific chromosomes of the smut fungus Microbotryum violaceum demonstrated that the nonrecombining mating-type-specific region in this species comprises approximately 25% ( approximately 1 Mb) of the chromosome length. Divergence between homologous mating-type-linked genes in this region varies between 0 and 8.6%, resembling th...

متن کامل

Extensive Divergence Between Mating-Type Chromosomes of the Anther-Smut Fungus

Genomic regions that determine mating compatibility are subject to distinct evolutionary forces that can lead to a cessation of meiotic recombination and the accumulation of structural changes between members of the homologous chromosome pair. The relatively recent discovery of dimorphic mating-type chromosomes in fungi can aid the understanding of sex chromosome evolution that is common to dio...

متن کامل

Herbarium studies on the distribution of anther-smut fungus (Microbotryum violaceum) and Silene species (Caryophyllaceae) in the eastern United States.

We used herbarium specimens of Silene virginica, S. caroliniana, S. rotundifolia, and S. latifolia to survey the incidence of anther-smut disease (caused by Microbotryum violaceum sensu lato) in the eastern USA. We found no evidence of a collector bias against diseased specimens. Diseased specimens were frequently found in collections of S. virginica and S. caroliniana, but not in those of S. r...

متن کامل

Polymorphic Microsatellite Markers for the Tetrapolar Anther-Smut Fungus Microbotryum saponariae Based on Genome Sequencing

BACKGROUND Anther-smut fungi belonging to the genus Microbotryum sterilize their host plants by aborting ovaries and replacing pollen by fungal spores. Sibling Microbotryum species are highly specialized on their host plants and they have been widely used as models for studies of ecology and evolution of plant pathogenic fungi. However, most studies have focused, so far, on M. lychnidis-dioicae...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Eukaryotic cell

دوره 7 5  شماره 

صفحات  -

تاریخ انتشار 2008