Statistical differentiation between self incompatibility and pseudo-self compatibility in Petunia hybrida Hort, using female and male coefficient of crossability

1994 ◽  
Vol 7 (4) ◽  
Author(s):  
B.E. Liedl ◽  
N.O. Anderson
Keyword(s):  
Petunia Hybrida ◽  
Self Incompatibility ◽  
Self Compatibility

scholarly journals A nonS-locus F-box gene breaks self-incompatibility in diploid potatoes

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Ling Ma ◽  
Chunzhi Zhang ◽  
Bo Zhang ◽  
Fei Tang ◽  
Futing Li ◽  
...  
Keyword(s):  
Potato Breeding ◽  
Inbred Lines ◽  
Hybrid Breeding ◽  
Self Incompatibility ◽  
Diploid Hybrid ◽  
Food Crop ◽  
Global Food Security ◽  
The Third ◽  
Self Compatibility ◽  
Global Food

AbstractPotato is the third most important staple food crop. To address challenges associated with global food security, a hybrid potato breeding system, aimed at converting potato from a tuber-propagated tetraploid crop into a seed-propagated diploid crop through crossing inbred lines, is under development. However, given that most diploid potatoes are self-incompatible, this represents a major obstacle which needs to be addressed in order to develop inbred lines. Here, we report on a self-compatible diploid potato, RH89-039-16 (RH), which can efficiently induce a mating transition from self-incompatibility to self-compatibility, when crossed to self-incompatible lines. We identify the S-locusinhibitor (Sli) gene in RH, capable of interacting with multiple allelic variants of the pistil-specific S-ribonucleases (S-RNases). Further, Sli gene functions like a general S-RNase inhibitor, to impart SC to RH and other self-incompatible potatoes. Discovery of Sli now offers a path forward for the diploid hybrid breeding program.

scholarly journals Effect of CO2 on Self-incompatibility in Petunia hybrida

1975 ◽  
Vol 25 (2) ◽  
pp. 93-95 ◽  
Author(s):  
Hidejiro TAKAHASHI
Keyword(s):  
Petunia Hybrida ◽  
Self Incompatibility

Self-incompatibility recognition in Petunia hybrida

1985 ◽  
Vol 16 (4) ◽  
pp. 233-245 ◽  
Author(s):  
K.R. Shivanna ◽  
Neelam Sharma
Keyword(s):  
Petunia Hybrida ◽  
Self Incompatibility

Purification and N-terminal sequencing of style glycoproteins associated with self-incompatibility in Petunia hybrida

1990 ◽  
Vol 14 (1) ◽  
pp. 93-102 ◽  
Author(s):  
Wim J. Broothaerts ◽  
André van Laere ◽  
Raf Witters ◽  
Gisèle Préaux ◽  
Benny Decock ◽  
...  
Keyword(s):  
Petunia Hybrida ◽  
Self Incompatibility

scholarly journals Downregulated expression of S2-RNase attenuates self-incompatibility in “Guiyou No. 1” pummelo

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Jianbing Hu ◽  
Qiang Xu ◽  
Chenchen Liu ◽  
Binghao Liu ◽  
Chongling Deng ◽  
...  
Keyword(s):  
Genetic Basis ◽  
Fruit Set ◽  
Spontaneous Mutation ◽  
Practical Significance ◽  
Spontaneous Mutant ◽  
Self Incompatibility ◽  
Yield And Quality ◽  
Citrus Maxima ◽  
Self Compatibility

AbstractSelf-incompatibility (SI) substantially restricts the yield and quality of citrus. Therefore, breeding and analyzing self-compatible germplasm is of great theoretical and practical significance for citrus. Here, we focus on the mechanism of a self-compatibility mutation in ‘Guiyou No. 1’ pummelo (Citrus maxima), which is a spontaneous mutant of ‘Shatian’ pummelo (Citrus maxima, self-incompatibility). The rate of fruit set and the growth of pollen tubes in the pistil confirmed that a spontaneous mutation in the pistil is responsible for the self-compatibility of ‘Guiyou No. 1’. Segregation ratios of the S genotype in F1 progeny, expression analysis, and western blotting validated that the reduced levels of S2-RNase mRNA contribute to the loss of SI in ‘Guiyou No. 1’. Furthermore, we report a phased assembly of the ‘Guiyou No. 1’ pummelo genome and obtained two complete and well-annotated S haplotypes. Coupled with an analysis of SV variations, methylation levels, and gene expression, we identified a candidate gene (CgHB40), that may influence the regulation of the S2-RNase promoter. Our data provide evidence that a mutation that affects the pistil led to the loss of SI in ‘Guiyou No. 1’ by influencing a poorly understood mechanism that affects transcriptional regulation. This work significantly advances our understanding of the genetic basis of the SI system in citrus and provides information on the regulation of S-RNase genes.

Floral Biology and Self-Incompatibility in Some Australian Mistletoes of the Genus Amyema (Loranthaceae)

1980 ◽  
Vol 28 (4) ◽  
pp. 437 ◽  
Author(s):  
P Bernhardt ◽  
RB Knox ◽  
DM Calder
Keyword(s):  
Floral Biology ◽  
Self Incompatibility ◽  
Flower Buds ◽  
In Vitro Pollination ◽  
Mature Flower ◽  
Pollen Presentation ◽  
Self Compatibility ◽  
Safe Mechanism ◽  
Fail Safe

Facultative cleistogamy has not been found In some Austrahan Amyema spp , and the stigma does not functlon in pollen presentation at anthesis. Wlthin mature flower buds self-polllnatlon is prevented by morphological and physiological barriers, a protandrous condition largely prevents mechanical or zoophilous self-pollination In vitro pollination experiments revealed that xenogamous crosses are most successful In the production of pollen tubes in the style although geitonogamy may act as a 'fail safe mechanism' at varying levels under natural condltlons in A miquelii (Lehm, ex Miq) Van Tiegh, A. miraculosum (Miq ) Van Tiegh and A. penduium (Sieber ex Spreng ) Van Tiegh. Of the four species studied, A. quandang (Lindl ) Van Tiegh had the highest levels of self-compatibility.

Sign in / Sign up

Export Citation Format

Share Document