Evidence map›Paper›PMID 17947432›Full record

ArticleGenetics2007

Expression of 10 S-class SLF-like genes in Nicotiana alata pollen and its implications for understanding the pollen factor of the S locus.

David Wheeler, Ed Newbigin

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In one paragraph

Article in Genetics, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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3 · Its place in the literature

Who cites it

32 citing papers in PubMed.

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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

2 authors.

David WheelerPlant Cell Biology Research Centre, School of Botany, University of Melbourne, Parkville, Victoria 3010, Australia.
Ed Newbigin

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The S locus of Nicotiana alata encodes a polymorphic series of ribonucleases (S-RNases) that determine the self-incompatibility (SI) phenotype of the style. The pollen product of the S locus (pollen S) in N. alata is unknown, but in species from the related genus Petunia and in self-incompatible members of the Plantaginaceae and Rosaceae, this function has been assigned to an F-box protein known as SLF or SFB. Here we describe the identification of 10 genes (designated DD1-10) encoding SLF-related proteins that are expressed in N. alata pollen. Because our approach to cloning the DD genes was based on sequences of SLFs from other species, we presume that one of the DD genes encodes the N. alata SLF ortholog. Seven of the DD genes were exclusively expressed in pollen and a low level of sequence variation was found in alleles of each DD gene. Mapping studies confirmed that all 10 DD genes were linked to the S locus and that at least three were located in the same chromosomal segment as pollen S. Finally, the different topologies of the phylogenetic trees produced using available SLF-related sequences and those produced using S-RNase sequences suggests that pollen S and the S-RNase have different evolutionary histories.

Indexed as

Base SequenceChromosome MappingEvolution, MolecularF-Box ProteinsGenes, PlantGenetic VariationGlycoproteinsMolecular Sequence DataNicotianaPhylogenyPlant ProteinsPollenRibonucleasesF-Box ProteinsGlycoproteinsPlant Proteinsribonuclease SRibonucleasesself-incompatibility glycoprotein, Nicotiana

Identifiers

PMID17947432
PMCPMC2219507

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