The 5' flanking sequences of two S alleles in Lycopersicon peruvianum are highly heterologous but contain short blocks of homologous sequences.
Copyright policy )The 5' flanking sequences of two S alleles in Lycopersicon peruvianum are highly heterologous but contain short blocks of homologous sequences.
To characterize the molecular structure of the S alleles in Lycopersicon peruvianum, we isolated two genomic fragments that corresponded to cDNAs for S11 and S12 RNases from a genomic library of a plant with the S11S12 genotype. The coding regions and the flanking regions in both fragments were sequenced. A single short intron was found in each gene for RNase, and it was located in the previously identified HV2 region [Chung et al. (1994) Plant Mol. Biol. 26: 757]. The site of initiation of transcription of the gene for S11 RNase was determined by a primer extension analysis and a putative TATA box was identified. Three short sequences that were highly homologous in the two S alleles were found within 360 bp upstream of the ATG initiation codon. It is suggested that these sequences might be involved in the regulation of transcription required for the appropriate-level or tissue-specific expression of the S genes in L. peruvianum.
- Pohang University of Science and Technology Korea (Republic of)
EXPRESSION, DNA, Complementary, Base Sequence, DNA, Plant, Lycopersicon peruvianum, PROTEINS, Molecular Sequence Data, Restriction Mapping, gametophytic self-incompatibility, Regulatory Sequences, Nucleic Acid, NICOTIANA-ALATA, Ribonucleases, Solanum lycopersicum, Gene Expression Regulation, Plant, S allele, LOCUS, PLANTS, Amino Acid Sequence, Cloning, Molecular, Alleles, Glycoproteins, Plant Proteins
EXPRESSION, DNA, Complementary, Base Sequence, DNA, Plant, Lycopersicon peruvianum, PROTEINS, Molecular Sequence Data, Restriction Mapping, gametophytic self-incompatibility, Regulatory Sequences, Nucleic Acid, NICOTIANA-ALATA, Ribonucleases, Solanum lycopersicum, Gene Expression Regulation, Plant, S allele, LOCUS, PLANTS, Amino Acid Sequence, Cloning, Molecular, Alleles, Glycoproteins, Plant Proteins
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