Abstract:
:The pathogenic life cycle of the rice blast fungus Magnaporthe oryzae involves a series of morphogenetic changes, essential for its ability to cause disease. The smo mutation was identified > 25 years ago, and affects the shape and development of diverse cell types in M. oryzae, including conidia, appressoria, and asci. All attempts to clone the SMO1 gene by map-based cloning or complementation have failed over many years. Here, we report the identification of SMO1 by a combination of bulk segregant analysis and comparative genome analysis. SMO1 encodes a GTPase-activating protein, which regulates Ras signaling during infection-related development. Targeted deletion of SMO1 results in abnormal, nonadherent conidia, impaired in their production of spore tip mucilage. Smo1 mutants also develop smaller appressoria, with a severely reduced capacity to infect rice plants. SMO1 is necessary for the organization of microtubules and for septin-dependent remodeling of the F-actin cytoskeleton at the appressorium pore. Smo1 physically interacts with components of the Ras2 signaling complex, and a range of other signaling and cytoskeletal components, including the four core septins. SMO1 is therefore necessary for the regulation of RAS activation required for conidial morphogenesis and septin-mediated plant infection.
journal_name
Geneticsjournal_title
Geneticsauthors
Kershaw MJ,Basiewicz M,Soanes DM,Yan X,Ryder LS,Csukai M,Oses-Ruiz M,Valent B,Talbot NJdoi
10.1534/genetics.118.301490subject
Has Abstractpub_date
2019-01-01 00:00:00pages
151-167issue
1eissn
0016-6731issn
1943-2631pii
genetics.118.301490journal_volume
211pub_type
杂志文章相关文献
GENETICS文献大全abstract::We have studied the deletion of inverted repeats cloned into the EcoRI site within the CAT gene of plasmid pBR325. A cloned inverted repeat constitutes a palindrome that includes both EcoRI sites flanking the insert. In addition, the two EcoRI sites represent direct repeats flanking a region of palindromic symmetry. A...
journal_title:Genetics
pub_type: 杂志文章
doi:
更新日期:1991-12-01 00:00:00
abstract::We discuss the conceptual conflict between a slow series of gene substitutions as the mechanism of evolutionary change, and the apparent need for rapid and coordinated changes at many loci simultaneously in producing complex adaptations. To improve on the limitations of classical theory and accommodate the enormous am...
journal_title:Genetics
pub_type: 杂志文章
doi:
更新日期:1980-03-01 00:00:00
abstract::Ataxia telangiectasia mutated (ATM) is a phosphatidyl-3-kinase-related protein kinase that functions as a central regulator of the DNA damage response in eukaryotic cells. In humans, mutations in ATM cause the devastating neurodegenerative disease ataxia telangiectasia. Previously, we characterized the homolog of ATM ...
journal_title:Genetics
pub_type: 杂志文章
doi:10.1534/genetics.107.080879
更新日期:2008-02-01 00:00:00
abstract::According to the ratchet mechanism hypothesis, deleterious mutations should accumulate in clonal genomes of unisexual fish of the genus Poeciliopsis. This study defines one such mutant, a silent carboxylesterase allele (ES-5 degrees) which is found in the heterozygous condition in a particular population of P. monacha...
journal_title:Genetics
pub_type: 杂志文章
doi:
更新日期:1982-02-01 00:00:00
abstract::LARK is an essential Drosophila RNA-binding protein of the RNA recognition motif (RRM) class that functions during embryonic development and for the circadian regulation of adult eclosion. LARK protein contains three consensus RNA-binding domains: two RRM domains and a retroviral-type zinc finger (RTZF). To show that ...
journal_title:Genetics
pub_type: 杂志文章
doi:
更新日期:2001-09-01 00:00:00
abstract::In fission yeast, regulation of p34cdc2 plays an important role in the checkpoint coupling mitosis to completion of DNA replication. The cdc2 mutations cdc2-3w (C67Y) and cdc2-4w (C67F) abolish checkpoint control without seriously affecting normal cell proliferation. However the molecular basis of this phenotype is no...
journal_title:Genetics
pub_type: 杂志文章
doi:
更新日期:1996-12-01 00:00:00
abstract::PGM plays a central role in the glycolytic pathway at the branch point leading to glycogen metabolism and is highly polymorphic in allozyme studies of many species. We have characterized the nucleotide diversity across the Pgm gene in Drosophila melanogaster and D. simulans to investigate the role that protein polymor...
journal_title:Genetics
pub_type: 杂志文章
doi:
更新日期:2000-12-01 00:00:00
abstract::Notch is a receptor that mediates cell-cell interactions in animal development, and aberrations in Notch signal transduction can cause cancer and other human diseases. Here, I describe the major advances in the Notch field from the identification of the first mutant in Drosophila almost a century ago through the eluci...
journal_title:Genetics
pub_type: 杂志文章,评审
doi:10.1534/genetics.112.141812
更新日期:2012-07-01 00:00:00
abstract::Metazoan genomes encode an abundant collection of mRNA-like, long noncoding (lnc)RNAs. Although lncRNAs greatly expand the transcriptional repertoire, we have a limited understanding of how these RNAs contribute to developmental regulation. Here, we investigate the function of the Drosophila lncRNA called yellow-achae...
journal_title:Genetics
pub_type: 杂志文章
doi:10.1534/genetics.111.131706
更新日期:2011-10-01 00:00:00
abstract::Pigmentation is a rapidly evolving trait that can play important roles in mimicry, sexual selection, thermoregulation, and other adaptive processes in many groups of animals. In Drosophila, pigmentation can differ dramatically among closely related taxa, presenting a good opportunity to dissect the genetic changes und...
journal_title:Genetics
pub_type: 杂志文章
doi:10.1534/genetics.108.091728
更新日期:2008-09-01 00:00:00
abstract::We examined linkage relationships for RecBC-mediated recombination in lytic cycle crosses of lambda phages bearing two cohesive end sites (cos) oriented in the same direction. The relationships obtained imply that a given recombinant tends to be packaged from the cos site that is the nearer one to the right of the exc...
journal_title:Genetics
pub_type: 杂志文章
doi:
更新日期:1986-06-01 00:00:00
abstract::In multigene families, variation among loci and alleles can contribute to trait evolution. We explored patterns of functional and genetic variation in six duplicated Arabidopsis thaliana trypsin inhibitor (ATTI) loci. We demonstrate significant variation in constitutive and herbivore-induced transcription among ATTI l...
journal_title:Genetics
pub_type: 杂志文章
doi:10.1534/genetics.166.3.1419
更新日期:2004-03-01 00:00:00
abstract::Genetic adaptation to external stimuli occurs through the combined action of mutation and selection. A central problem in genetics is to identify loci responsive to specific selective constraints. Many tests have been proposed to identify the genomic signatures of natural selection by quantifying the skew in the site ...
journal_title:Genetics
pub_type: 杂志文章
doi:10.1534/genetics.113.152587
更新日期:2013-09-01 00:00:00
abstract::Additional experiments with homologous as well as heterologous hybridization confirmed our previous finding in Sciara coprophila that XX females have nearly twice the number of ribosomal RNA cistrons as XO males. A comparison between two different X' chromosomes revealed that only the one carrying the irradiation-indu...
journal_title:Genetics
pub_type: 杂志文章
doi:
更新日期:1976-05-01 00:00:00
abstract::We have identified a new locus involved in gibberellin (GA) signal transduction by screening for suppressors of the Arabidopsis thaliana GA biosynthetic mutant gal-3. The locus is named RGA for repressor of gal-3. Based on the recessive phenotype of the digenic rga/gal-3 mutant, the wild-type gene product of RGA is pr...
journal_title:Genetics
pub_type: 杂志文章
doi:
更新日期:1997-07-01 00:00:00
abstract::We present methods for estimating the parameters of inheritance and selection that appear in a quantitative genetic model for the evolution growth trajectories and other "infinite-dimensional" traits that we recently introduced. Two methods for estimating the additive genetic covariance function are developed, a "full...
journal_title:Genetics
pub_type: 杂志文章
doi:
更新日期:1990-04-01 00:00:00
abstract::The presence of large genomic regions with suppressed recombination (SR) is a key shared property of some sex- and mating-type determining (mat) chromosomes identified to date in animals, plants, and fungi. Why such regions form and how they evolve remain central questions in evolutionary genetics. The smut fungus Mic...
journal_title:Genetics
pub_type: 杂志文章
doi:10.1534/genetics.114.171702
更新日期:2015-03-01 00:00:00
abstract::Kinesin-1 is a motor protein that moves stepwise along microtubules by employing dimerized kinesin heavy chain (Khc) subunits that alternate cycles of microtubule binding, conformational change, and ATP hydrolysis. Mutations in the Drosophila Khc gene are known to cause distal paralysis and lethality preceded by the o...
journal_title:Genetics
pub_type: 杂志文章
doi:10.1534/genetics.112.140798
更新日期:2012-09-01 00:00:00
abstract::About 450 black rats (Rattus rattus) were collected from 25 localities in Asia and Oceania. Their serum transferrins were analyzed by a newly developed thin layer acrylamide gel electrophoresis accompanied with acrinol pretreatment, exhibiting 12 transferrin bands. Generally, Asian type rats (2N=42) had fast-moving tr...
journal_title:Genetics
pub_type: 杂志文章
doi:
更新日期:1975-02-01 00:00:00
abstract::A point connecting a pair of homologous regions of DNA duplexes moves along the homology in a reaction intermediate of the homologous recombination. Formulating this movement as a random walk, we were previously successful at explaining the dependence of the recombination frequency on the homology length. Recently, th...
journal_title:Genetics
pub_type: 杂志文章
doi:
更新日期:1999-12-01 00:00:00
abstract::The Mre11/Rad50/Nbs1 (MRN) complex is required for eukaryotic DNA double-strand break (DSB) repair and meiotic recombination. We cloned the Coprinus cinereus rad50 gene and showed that it corresponds to the complementation group previously named rad12, identified mutations in 15 rad50 alleles, and mapped two of the mu...
journal_title:Genetics
pub_type: 杂志文章
doi:10.1534/genetics.108.092775
更新日期:2008-12-01 00:00:00
abstract::The evolutionary process leading to the fixation of newly duplicated genes is not well understood. It was recently proposed that the fixation of duplicate genes is frequently driven by positive selection for increased gene dosage (i.e., the gene dosage hypothesis), because haploinsufficient genes were reported to have...
journal_title:Genetics
pub_type: 杂志文章
doi:10.1534/genetics.108.090936
更新日期:2008-08-01 00:00:00
abstract::During meiotic prophase, assembly of the synaptonemal complex (SC) brings homologous chromosomes into close apposition along their lengths. The Zip1 protein is a major building block of the SC in Saccharomyces cerevisiae. In the absence of Zip1, SC fails to form, cells arrest or delay in meiotic prophase (depending on...
journal_title:Genetics
pub_type: 杂志文章
doi:10.1534/genetics.107.071100
更新日期:2007-06-01 00:00:00
abstract::The Mus101 family of chromosomal proteins, identified initially in Drosophila, is widely conserved and has been shown to function in a variety of DNA metabolic processes. Such functions include DNA replication, DNA damage repair, postreplication repair, damage checkpoint activation, chromosome stability, and chromosom...
journal_title:Genetics
pub_type: 杂志文章
doi:10.1534/genetics.104.036137
更新日期:2005-03-01 00:00:00
abstract::Drosophila adult leg development provides an ideal model system for characterizing the molecular mechanisms of hormone-triggered morphogenesis. A pulse of the steroid hormone ecdysone at the onset of metamorphosis triggers the rapid transformation of a flat leg imaginal disc into an immature adult leg, largely through...
journal_title:Genetics
pub_type: 杂志文章
doi:
更新日期:2003-11-01 00:00:00
abstract::THE FOLLOWING MODELS ARE CONSIDERED FOR THE GENETIC DETERMINATION OF QUANTITATIVE TRAITS: segregation at one locus, at two linked loci, at any number of equal and additive unlinked loci, and at one major locus and an indefinite number of equal and additive loci. In each case an appropriate likelihood is given for data...
journal_title:Genetics
pub_type: 杂志文章
doi:
更新日期:1973-04-01 00:00:00
abstract::The determination of segment identity in Drosophila melanogaster appears to be controlled by a small number of genes. In order to identity new components in the process, we have systematically screened the autosomal complement for loci that show a dosage-dependent interaction with mutations in previously characterized...
journal_title:Genetics
pub_type: 杂志文章
doi:
更新日期:1987-05-01 00:00:00
abstract::To identify hypothesized missing components of the synaptic G alpha(o)-G alpha(q) signaling network, which tightly regulates neurotransmitter release, we undertook two large forward genetic screens in the model organism C. elegans and focused first on mutations that strongly rescue the paralysis of ric-8(md303) reduct...
journal_title:Genetics
pub_type: 杂志文章
doi:10.1534/genetics.104.032334
更新日期:2005-02-01 00:00:00
abstract::Florida teosinte from Honduras and Guanajuato teosinte have most of their knobs internally located and a common inversion in the short arm of chromosome 8. Teosintes from northern Guatemala, Huixta and Monajil, have all their knobs terminally located and do not have any inversions. Therefore, Florida teosinte from Hon...
journal_title:Genetics
pub_type: 杂志文章
doi:
更新日期:1976-08-01 00:00:00
abstract::In the yeast Saccharomyces cerevisiae ectopic recombination has been shown to occur at high frequencies for artificially created repeats, but at relatively low frequencies for a natural family of repeated sequences, the Ty family. Little is known about the mechanism(s) that prevent recombination between repeated seque...
journal_title:Genetics
pub_type: 杂志文章
doi:
更新日期:1996-11-01 00:00:00