scholarly journals Self-compatibility of 3 Apple Cultivars and Identification of S-allele Genotypes in Their Self-pollinated Progenies

2007 ◽  
Vol 6 (1) ◽  
pp. 27-32 ◽  
Author(s):  
Akira Saito ◽  
Tomoko Fukasawa-Akada ◽  
Megumi Igarashi ◽  
Takashi Sato ◽  
Masahiko Suzuki
Keyword(s):  
Self Compatibility ◽  
Apple Cultivars ◽  
S Allele

scholarly journals S-genotypes of 15 Apple Cultivars and Self-compatibility of 'Megumi'.

1999 ◽  
Vol 68 (2) ◽  
pp. 236-241 ◽  
Author(s):  
Shogo Matsumoto ◽  
Sadao Komori ◽  
Kentaro Kitahara ◽  
Satomi Imazu ◽  
Junichi Soejima
Keyword(s):  
Self Compatibility ◽  
Apple Cultivars

S-ALLELE GENOTYPE OF APPLE CULTIVARS AND SELECTIONS

2003 ◽  
pp. 389-396 ◽  
Author(s):  
S. Matsumoto ◽  
K. Kitahara ◽  
Y. Furusawa ◽  
J. Soejima ◽  
H. Fukui ◽  
...  
Keyword(s):  
Apple Cultivars ◽  
S Allele

scholarly journals How does the S-locus determining self-incompatibility in stone fruits work in self-compatible peach?

2005 ◽  
pp. 93-100
Author(s):  
Attila Hegedűs ◽  
Júlia Halász ◽  
Zoltán Szabó ◽  
József Nyéki ◽  
Andrzej Pedryc
Keyword(s):  
Prunus Persica ◽  
Fruit Trees ◽  
S Locus ◽  
Recognition Mechanism ◽  
Specific Pcr ◽  
Fruit Species ◽  
Self Fertilization ◽  
Self Compatibility ◽  
S Allele ◽  
Available Information

The majority of stone fruit species are self-incompatible, a feature that is determined by a specific recognition mechanism between the S-ribonuclease enzymes residing in the pistils and the F-box proteins expressed in the pollen tubes. Failure in the function of any component of this bipartite system resulted in self-compatibility (SC) in many cultivars of Prunus species. Peach (Prunus persica (L.) Batsch.) is the only species in the Prunoideae subfamily that is traditionally known to be self-compatible, but its molecular background is completely unknown. Isoelectric focusing and S-gene specific PCR revealed that SC is not due to functional inability of pistil ribonucleases. We hypothesize that SC may be a consequence of a kind of pollen-part mutation or the action of one or more currently unknown modifier gene(s). Only two S-alleles were identified in a set of peach genotypes of various origin and phenotypes in contrast to the 17–30 alleles described in self-incompatible fruit trees. Most important commercial cultivars carry the same S-allele and are in a homozygote state. This indicates the common origin of these cultivars and also the consequence of self-fertilization. According to the available information, this is the first report to elucidate the role of S-locus in the fertilization process of peach. 

scholarly journals Determination of S-allele Genotypes of 21 Apple Cultivars and Strains and Confirmation of 45 Others by Controlled Crosses.

1998 ◽  
Vol 67 (6) ◽  
pp. 880-889 ◽  
Author(s):  
Sadao Komori ◽  
Junichi Soejima ◽  
Kazunori Kudo ◽  
Hidetoshi Kyotani ◽  
Kazuyuki Abe ◽  
...  
Keyword(s):  
Apple Cultivars ◽  
Controlled Crosses ◽  
S Allele

scholarly journals Update on and Review of the Incompatibility (S-) Genotypes of Apple Cultivars

HortScience ◽  
2004 ◽  
Vol 39 (5) ◽  
pp. 943-947 ◽  
Author(s):  
Wim Broothaerts ◽  
Ilse Van Nerum ◽  
Johan Keulemans
Keyword(s):  
Identification System ◽  
Published Data ◽  
Specific Pcr ◽  
S Alleles ◽  
Allele Specific ◽  
Self Fertilization ◽  
Apple Cultivars ◽  
S Allele ◽  
Allele Specific Pcr

Apple cultivars display a self-incompatibility system that restricts self-fertilization and fertilization between cultivars bearing identical S-alleles. There has been considerable progress in identification of S-alleles in apple in recent years and methods are now available for the accurate S-genotyping of cultivars. Following a recently revised numerical identification system for apple S-alleles, we present the first extensive compilation of apple cultivars with their S-genotypes. This list contains data from our own investigations using S-allele-specific PCR methodology, including a number of new data, as well as published data from various other sources. Eighteen different S-alleles are discriminated, which allowed the determination of the S-genotypes for 150 diploid or triploid European, American, and Japanese cultivars. Many of these cultivars are cultivated worldwide for their fruit. Also included are a number of old, obsolete cultivars and a few nondomestic genotypes. We observed a wide variation in the frequency of S-alleles in the apple germplasm. Three S-alleles (S2, S3, and S9) are very common in the cultivars evaluated, presumably as a result of the widespread use of the same breeding parents, and seven alleles are very rare (S4, S6, S8, S16, S22, S23, S26).

scholarly journals Molecular characterisation of indigenous Swedish apple cultivars based on SSR and S-allele analysis

Hereditas ◽  
2008 ◽  
Author(s):  
L. Garkava-Gustavsson ◽  
A. Kolodinska Brantestam ◽  
J. Sehic ◽  
H. Nybom
Keyword(s):  
Molecular Characterisation ◽  
Apple Cultivars ◽  
S Allele

scholarly journals Molecular characterisation of indigenous Swedish apple cultivars based on SSR and S-allele analysis

Hereditas ◽  
2008 ◽  
Vol 145 (3) ◽  
pp. 99-112 ◽  
Author(s):  
L. Garkava-Gustavsson ◽  
A. Kolodinska Brantestam ◽  
J. Sehic ◽  
H. Nybom
Keyword(s):  
Molecular Characterisation ◽  
Apple Cultivars ◽  
S Allele
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