Results 111 to 120 of about 1,306 (141)

Breakdown of self-incompatibility in tetraploid Lycopersicon peruvianum: inheritance and expression of S-related proteins

Theoretical and Applied Genetics, 1997
Lycopersicon peruvianum displays gametophytic self-incompatibility (GSI). We have isolated self-compatible (SC) tetraploids of L. peruvianum from tissue-cultured leaves and have explored the expression and inheritance of their S-related proteins. The Srelated protein profiles of styles of SC tetraploids were indistinguishable from the diploid self ...
R Bernatzky, Bernatzky R
exaly   +2 more sources

The generation of new S alleles at the incompatibility locus of Lycopersicum peruvianum Mill

Theoretical and Applied Genetics, 1971
A detailed analysis has been made of S genotypes in progenies derived from induced and spontaneous inbreeding processes in a clonal population of Lycopersicum peruvianum Mill. The results indicate that, in certain genetic backgrounds, induced inbreeding leads to the generation of a new S allele which usually first appears in the pistil of individuals ...
D, de Nettancourt, R, Ecochard, M D, Perquin, T, van der Drift, M, Westerhof   +4 more
openaire   +2 more sources

Sequence of an S-protein of Lycopersicon peruvianum and comparison with other solanaceous S-proteins

Sexual Plant Reproduction, 1992
cDNA clones for an S-allele, designated S5, of the self-incompatibility locus (S-locus) of Lycopersicon peruvianum have been isolated by probing a pistil cDNA library with cDNAs for S-alleles of Petunia inflata and Solanum chacoense. The longest S5-cDNA is 869 bp and contains an open reading frame of 217 amino acids.
D.-S. Tsai, H.-S. Lee, L.C. Post, K.M. Kreiling, Teh-hui Kao   +4 more
openaire   +1 more source

Pollen-expressed S-RNases are not involved in self-incompatibility in Lycopersicon peruvianum

Sexual Plant Reproduction, 1999
Self-incompatibility in solanaceous plants is gametophytically controlled by a multiallelic S-locus. The only known S-locus product is a series of extracellular ribonucleases (the S-RNases) which are expressed in the mature style and determine its self-incompatibility phenotype. Potentially, S-RNases also determine the self-incompatibility phenotype of
P. N. Dodds, C. Ferguson, A. E. Clarke, E. Newbigin   +3 more
openaire   +1 more source

Facts and hypotheses on the origin of S mutations and on the function of the S gene in Nicotiana alata and Lycopersicum peruvianum

Proceedings of the Royal Society of London. Series B. Biological Sciences, 1975
Abstract Fragments in certain pollen-part mutants are suspected to originate from duplications of satellited regions. Linkage tests demonstrate that, if this interpretation is correct, either the specificity segment of the S locus is not on the fragment or two unliked specificity segments operate respectively in pollen and style.
D, de Nettancourt, M, Devreux, F, Carluccio, U, Laneri, M, Cresti, E, Pacini, G, Sarfatti, A J, van Gastel   +7 more
openaire   +2 more sources

EMBRYO RESCUE OF SOLANUM LYCOPERSICUM × S. PERUVIANUM TOMATO CROSS FOR TOCV RESISTANCE

Acta Horticulturae, 2012
The tomato line 'EELM-802' shows strong resistance to Tomato chlorosis virus (ToCV). Attempts to cross this line with a susceptible parent in order to study genetics of the resistance have failed. 'EELM-802' was derived by selfing and selection from 'IAC-CN-RT', a population obtained by embryo rescue in Brazil from a cross between the cultivated tomato
C.L. Encina, E. Carmona-Martin, R. Fernández-Muñoz   +2 more
openaire   +1 more source

АКТИВНЫЕ РЕТРОТРАНСПОЗОНЫ SOLANUM PERUVIANUM, ИНТРОГРЕССИРОВАННЫЕ В ГЕНОМ ТОМАТА (S. LYCOPERSICUM L.)

Биотехнология в растениеводстве, животноводстве и сельскохозяйственной микробиологии, 2023
Геном большинства сельскохозяйственных растений в значительной мере представлен мобильными элементами (МЭ, транспозоны), способными к перемещению и пролиферации внутри генома, что также может приводить к появлению генов нового функционального значения.
openaire   +1 more source

Long-read sequencing of extrachromosomal circular DNA and genome assembly of a Solanum lycopersicum breeding line revealed active LTR retrotransposons originating from S. peruvianum L. introgressions

2023
Abstract Transposable elements (TEs) are a major force in the evolution of plant genomes. Differences in the transposition activities and landscapes of TEs can vary substantially, even in closely related species. Interspecific hybridization, a widely employed technique in tomato breeding, results in the creation of ...
Pavel Merkulov, Melania Serganova, Georgy Petrov, Vladislav Mityukov, Ilya Kirov   +4 more
openaire   +1 more source

An S RNase Gene of Lycopersicon peruvianum L. is Highly Expressed in Transgenic Tobacco but Does not Affect Self-incompatibility

Journal of Plant Physiology, 1999
Summary Lycopersicon peruvianum has a gametophytic self-incompatibility (GSI) mechanism controlled by a single genetic locus (S locus) with multiple alleles. S RNases, an allelic series of abundant stylar proteins, are products of the S locus in L. peruvianum and other Solanaceous plants.
Chung, IK, Lee, SY, Lim, PO, Oh, SA, Kim, YS, Nam, HG   +5 more
openaire   +2 more sources

Fine mapping of the nematode resistance gene Mi-3 in Solanum peruvianum and construction of a S. lycopersicum DNA contig spanning the locus

Molecular Genetics and Genomics, 2005
Currently, the only genetic resistance against root-knot nematodes in the cultivated tomato Solanum lycopersicum (Lycopersicon esculentum) is due to the gene Mi-1. Another resistance gene, Mi-3, identified in the related wild species Solanum peruvianum (Lycopersicon peruvianum) confers resistance to nematodes that are virulent on tomato lines that ...
J, Yaghoobi, J L, Yates, V M, Williamson
openaire   +2 more sources