Publikationsdatum:
2008-08-09
Beschreibung:
Andromonoecy is a widespread sexual system in angiosperms characterized by plants carrying both male and bisexual flowers. In melon, this sexual form is controlled by the identity of the alleles at the andromonoecious (a) locus. Cloning of the a gene reveals that andromonoecy results from a mutation in the active site of 1-aminocyclopropane-1-carboxylic acid synthase. Expression of the active enzyme inhibits the development of the male organs and is not required for carpel development. A causal single-nucleotide polymorphism associated with andromonoecy was identified, which suggests that the a allele has been under recent positive selection and may be linked to the evolution of this sexual system.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Boualem, Adnane -- Fergany, Mohamed -- Fernandez, Ronan -- Troadec, Christelle -- Martin, Antoine -- Morin, Halima -- Sari, Marie-Agnes -- Collin, Fabrice -- Flowers, Jonathan M -- Pitrat, Michel -- Purugganan, Michael D -- Dogimont, Catherine -- Bendahmane, Abdelhafid -- New York, N.Y. -- Science. 2008 Aug 8;321(5890):836-8. doi: 10.1126/science.1159023.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉INRA (Institut National de la Recherche Agronomique)-CNRS, UMR1165, Unite de Recherche en Genomique Vegetale, 2 rue Gaston Cremieux, F-91057 Evry, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18687965" target="_blank"〉PubMed〈/a〉
Schlagwort(e):
Alleles
;
Amino Acid Sequence
;
Binding Sites
;
Biological Evolution
;
Crosses, Genetic
;
Cucumis melo/*enzymology/genetics/*physiology
;
Flowers/genetics/growth & development/*physiology
;
Genes, Plant
;
Haplotypes
;
Lyases/chemistry/*genetics/metabolism
;
Molecular Sequence Data
;
*Mutation
;
Phylogeny
;
*Polymorphism, Single Nucleotide
;
Reverse Transcriptase Polymerase Chain Reaction
;
Selection, Genetic
;
Sequence Analysis, DNA
Print ISSN:
0036-8075
Digitale ISSN:
1095-9203
Thema:
Biologie
,
Chemie und Pharmazie
,
Informatik
,
Medizin
,
Allgemeine Naturwissenschaft
,
Physik
