PoplarV1, Main, Exploration, bibRecord, 003623

Functional conservation of the meiotic genes SDS and RCK in male meiosis in the monocot rice.

Identifieur interne : 003623 ( Main/Exploration ); précédent : 003622; suivant : 003624

Functional conservation of the meiotic genes SDS and RCK in male meiosis in the monocot rice.

Auteurs : Ling Chang [République populaire de Chine] ; Hong Ma ; Hong-Wei Xue

Source :

Cell research [ 1748-7838 ] ; 2009.

RBID : pubmed:19417775

Descripteurs français

KwdFr :
- Cyclines (classification), Cyclines (génétique), Fleurs (génétique), Fleurs (métabolisme), Fécondité (MeSH), Gènes de plante (MeSH), Helicase (classification), Helicase (génétique), Interférence par ARN (MeSH), Méiose (MeSH), Oryza (croissance et développement), Oryza (génétique), Oryza (métabolisme), Phylogenèse (MeSH), Protéines d'Arabidopsis (classification), Protéines d'Arabidopsis (génétique), Protéines végétales (classification), Protéines végétales (génétique), Protéines végétales (métabolisme).
MESH :
- classification : Cyclines, Helicase, Protéines d'Arabidopsis, Protéines végétales.
- croissance et développement : Oryza.
- génétique : Cyclines, Fleurs, Helicase, Oryza, Protéines d'Arabidopsis, Protéines végétales.
- métabolisme : Fleurs, Oryza, Protéines végétales.
- Fécondité, Gènes de plante, Interférence par ARN, Méiose, Phylogenèse.

English descriptors

KwdEn :
- Arabidopsis Proteins (classification), Arabidopsis Proteins (genetics), Cyclins (classification), Cyclins (genetics), DNA Helicases (classification), DNA Helicases (genetics), Fertility (MeSH), Flowers (genetics), Flowers (metabolism), Genes, Plant (MeSH), Meiosis (MeSH), Oryza (genetics), Oryza (growth & development), Oryza (metabolism), Phylogeny (MeSH), Plant Proteins (classification), Plant Proteins (genetics), Plant Proteins (metabolism), RNA Interference (MeSH).
MESH :
- chemical , classification : Arabidopsis Proteins, Cyclins, DNA Helicases, Plant Proteins.
- chemical , genetics : Arabidopsis Proteins, Cyclins, DNA Helicases, Plant Proteins.
- genetics : Flowers, Oryza.
- growth & development : Oryza.
- metabolism : Flowers, Oryza, Plant Proteins.
- Fertility, Genes, Plant, Meiosis, Phylogeny, RNA Interference.

Abstract

The Arabidopsis SDS (SOLO DANCERS) and RCK (ROCK-N-ROLLERS) genes are important for male meiosis, but it is still unknown whether they represent conserved functions in plants. We have performed phylogenetic analyses of SDS and RCK and their respective homologs, and identified their putative orthologs in poplar and rice. Quantitative real-time RT-PCR analysis indicated that rice SDS and RCK are expressed preferentially in young flowers, and transgenic RNAi rice lines with reduced expression of these genes exhibited normal vegetative development, but showed significantly reduced fertility with partially sterile flowers and defective pollens. SDS deficiency also caused a decrease in pollen amounts. Further cytological examination of male meiocytes revealed that the SDS deficiency led to defects in homolog interaction and bivalent formation in meiotic prophase I, and RCK deficiency resulted in defective meiotic crossover formation. These results indicate that rice SDS and RCK genes have similar functions to their Arabidopsis orthologs. Because rice and Arabidopsis, respectively, are members of monocots and eudicots, two largest groups of flowering plants, our results suggest that the functions of SDS and RCK are likely conserved in flowering plants.

DOI: 10.1038/cr.2009.52
PubMed: 19417775

Affiliations:

République populaire de Chine

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Le document en format XML

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<author><name sortKey="Ma, Hong" sort="Ma, Hong" uniqKey="Ma H" first="Hong" last="Ma">Hong Ma</name>
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<term>RNA Interference</term>
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<term>Phylogenèse</term>
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<front><div type="abstract" xml:lang="en">The Arabidopsis SDS (SOLO DANCERS) and RCK (ROCK-N-ROLLERS) genes are important for male meiosis, but it is still unknown whether they represent conserved functions in plants. We have performed phylogenetic analyses of SDS and RCK and their respective homologs, and identified their putative orthologs in poplar and rice. Quantitative real-time RT-PCR analysis indicated that rice SDS and RCK are expressed preferentially in young flowers, and transgenic RNAi rice lines with reduced expression of these genes exhibited normal vegetative development, but showed significantly reduced fertility with partially sterile flowers and defective pollens. SDS deficiency also caused a decrease in pollen amounts. Further cytological examination of male meiocytes revealed that the SDS deficiency led to defects in homolog interaction and bivalent formation in meiotic prophase I, and RCK deficiency resulted in defective meiotic crossover formation. These results indicate that rice SDS and RCK genes have similar functions to their Arabidopsis orthologs. Because rice and Arabidopsis, respectively, are members of monocots and eudicots, two largest groups of flowering plants, our results suggest that the functions of SDS and RCK are likely conserved in flowering plants.</div>
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Functional conservation of the meiotic genes SDS and RCK in male meiosis in the monocot rice.

Functional conservation of the meiotic genes SDS and RCK in male meiosis in the monocot rice.

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki