Genetics of self-compatibility in dihaploids of Solanum tuberosum L. I. Breeding behaviour of two self-compatible dihaploids

Olsder, Janny; Hermsen, J. G. Th.

doi:10.1007/bf00041597

Cited by 44 publications

(45 citation statements)

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“…Breakdown of the pollen SI response in these plants occurs because of a ''competitive interaction'' that enables pollen with two different S alleles (but not two identical S alleles) to grow through an incompatible style (7). Apart from PPMs, competitive interaction is also the reason why in some families tetraploids that are derived from self-incompatible diploids are self-fertile (11-14).Several studies have identified PPMs with apparent deletions of pollen S (''true'' PPMs), as well as PPMs with centric fragments that apparently lack an S allele (5,8,15). Consistent with this interpretation, molecular analyses of these plants, where done, have found no evidence of extra S-RNase genes in the genome (5, 16).…”

mentioning

confidence: 99%

Genetic analysis of Nicotiana pollen-part mutants is consistent with the presence of an S -ribonuclease inhibitor at the S locus

Golz

et al. 2001

Proc. Natl. Acad. Sci. U.S.A.

116

123

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Self-incompatibility (SI) is a genetic mechanism that restricts inbreeding in flowering plants. In the nightshade family (Solanaceae) SI is controlled by a single multiallelic S locus. Pollen rejection in this system requires the interaction of two S locus products: a stylar (S)-RNase and its pollen counterpart (pollen S). pollen S has not yet been cloned. Our understanding of how this gene functions comes from studies of plants with mutations that affect the pollen but not the stylar SI response (pollen-part mutations). These mutations are frequently associated with duplicated S alleles, but the absence of an obvious additional allele in some plants suggests pollen S can also be deleted. We studied Nicotiana alata plants with an additional S allele and show that duplication causes a pollen-part mutation in several different genetic backgrounds. Inheritance of the duplication was consistent with a competitive interaction model in which any two nonmatching S alleles cause a breakdown of SI when present in the same pollen grain. We also examined plants with presumed deletions of pollen S and found that they instead have duplications that included pollen S but not the S-RNase gene. This finding is consistent with a bipartite structure for the S locus. The absence of pollen S deletions in this study and perhaps other studies suggests that pollen S might be required for pollen viability, possibly because its product acts as an S-RNase inhibitor.S elf-incompatibility (SI) in many plant families is controlled by a multiallelic S locus that enables a style to reject any pollen expressing the same S allelic specificity as itself (1). In the Solanaceae, the family that includes tobacco, tomato, and petunia, SI is described as gametophytic because the allelic specificity of each pollen grain is determined by its own haploid genotype. The S locus in this family encodes a secreted extracellular RNase [stylar (S)-RNase] that accumulates in the style (2). Recognizing which S allele each pollen grain expresses is thought to require an interaction between the S-RNase and an unknown product(s) of a second S locus gene called pollen S (3, 4).As part of a strategy to identify pollen S, we isolated Nicotiana alata plants with gamma ray induced mutations that specifically affect the SI phenotype of pollen but not the SI phenotype of the style (5). Such plants are called pollen-part mutants (PPMs). Because ionizing radiation can cause either the deletion of part of a chromosome or chromosomal aberrations such as translocations, inversions, and fragments (6), the mutations in PPMs are likely to be complex because they can arise through one of a few different types of lesion.Among the PPMs described so far, the most frequent types of lesion are either translocations or small ''centric'' fragments (short extra chromosomes) that carry a duplicated copy of an S allele (5, 7-10). Breakdown of the pollen SI response in these plants occurs because of a ''competitive interaction'' that enables pollen with two different S alleles (but not two i...

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mentioning

confidence: 99%

Genetic analysis of Nicotiana pollen-part mutants is consistent with the presence of an S -ribonuclease inhibitor at the S locus

Golz

et al. 2001

Proc. Natl. Acad. Sci. U.S.A.

116

123

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“…To detect particular S-allele constitutions of individuals, diallel crosses and backcrosses to homozygous tester plants have been carried out in the past (Cipar et al, 1964;Abdalla, 1970;Olsder & Hermsen, 1976;Chetelat & DeVerna, 1991). To decide whether a certain cross combination is compatible or not, fruit set (Cipar et al, 1964) and a combination of fruit set and seed set (Grun & Aubertin, 1966;Abdalla, 1970;Olsder & Hermsen, 1976) have been used as indicators.…”

Section: Discussionmentioning

confidence: 99%

“…A considerable frequency of more than 1% of large pollen grains that could represent unreduced gametes was detected in only two plants of family B (B-6, 1.1%, and B-13, 5.3%). Unreduced pollen could result in silencing of the pollen incompatibility due to competitive interaction among different S-alleles of a diploid gamete (Lewis, 1947;Olsder & Hermsen, 1976). This could cause a change from incompatibility to compatibility.…”

Section: Methodsmentioning

confidence: 99%

Analysis of pollen tube growth in situ to investigate self-incompatibility in the wild potato Solanum commersonii

Trognitz

1995

Euphytica

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Pollen tube growth was investigated in a diallelic crossing design with seven genotypes of the diploid wild potato species Solanum commersonii, accession O/S UR-9, CIP 762459. Pollen tube growth in the style was recorded using a combined quantitative and qualitative evaluation scale. Clear-cut differences in pollen tube growth behavior in compatible and in partially or completely incompatible crosses were detected. Diallelic crossing of the seven randomly chosen genotypes, intercrossing within two progeny families, and backcrossing of two progeny populations to the parents revealed the existence of a one-locus gametophytic system of stylar incompatibility. The S-allele status of all genotypes investigated was determined.

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“…The use of diploid breeding lines with self-compatibility mutations in crossings may contribute to avoiding this problem. Self-compatibility mutations have been identified in S. tuberosum dihaploids [31] and in some diploid potato species (S. gоniocalix, S. kurzianum, S. neohawkesii, S. phureja, S. pinnatisectum, S. raphanifolium, S. sanctae-rosae, S. stenotomum) [32]. The mutations tS1 in S. tuberosum dihaploids [31] and Sli in S. chacoense [33] are best known genetically.…”

Section: E V E L O P M E N T O F P O T a T O D I H A P L O I D Smentioning

confidence: 99%

“…Self-compatibility mutations have been identified in S. tuberosum dihaploids [31] and in some diploid potato species (S. gоniocalix, S. kurzianum, S. neohawkesii, S. phureja, S. pinnatisectum, S. raphanifolium, S. sanctae-rosae, S. stenotomum) [32]. The mutations tS1 in S. tuberosum dihaploids [31] and Sli in S. chacoense [33] are best known genetically. Sli homozygous donors were successfully used for breeding of diploid inbred lines intended for future development of heterotic hybrids on their basis [34].…”

Section: E V E L O P M E N T O F P O T a T O D I H A P L O I D Smentioning

confidence: 99%

DEVELOPMENT OF INITIAL MATERIAL FOR MARKER ASSISTED POTATO (Solanum tuberosum L.) PARENTAL LINE BREEDING AT THE DIPLOID LEVEL (review)

Yermishin¹,

Воронкова²

2017

S-h. biol.

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A b s t r a c tIt is important for improving the efficacy of potato breeding to have parental lines that are multiplex for many genes of agronomic characters, first of all genes of resistance to pests and diseases (that have two or more dominant alleles in the locus) (J.E. Bradshaw et al., 1994). Parental lines that are multiplex for several resistance genes occur not often (A.P. Yermishin et al., 2016) and, owing to biological peculiarities of potato crop, they can be produced only by means of breeding at the diploid level. In the presented review the genetic principles are described and an experience of their use by authors in research devoted to the development of the initial material applicable for effective marker assisted potato parental line breeding at the diploid level. The material includes the collection of initial dihaploids originated from potato varieties which were selected for viability, tuber performance, cultivar characters and DNA-markers of pest and diseases resistance genes; the diploid breeding material having wide range of late blight and virus resistance genes, introgressed from wild potato species by means of original methods of overcoming interspecific reproductive barriers; the diploid lines -donors of self-incompatibility gene and high male fertility genes that are effective as in heterozygous as well as in homozygous condition; the diploid lines -donors of genes of male fertile FDR (first division restitution) 2n-gamete formation. The best diploid lines having a complex of pest and diseases resistance genes, selected as the result of diploid breeding (on the basis of initial dihaploids, interspecific hybrids and donors of fertility) were used for production of multiplex tetraploid parental lines by means of mitotic chromosome doubling. Diploid parental lines suitable for hybridization with potato varieties (for meiotic polyploidization) were bred using lines-donors of genes of male fertile FDR 2n-gamete formation. The diploid initial material developed as the result of the research is of the interest for prospective alternative directions of potato breeding using selection at the diploid level: breeding diploid potato varieties as well as parental lines for production of hybrids and hybrid populations for true potato seed technology.

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Genetics of self-compatibility in dihaploids of Solanum tuberosum L. I. Breeding behaviour of two self-compatible dihaploids

Cited by 44 publications

References 18 publications

Genetic analysis of Nicotiana pollen-part mutants is consistent with the presence of an S -ribonuclease inhibitor at the S locus

Genetic analysis of Nicotiana pollen-part mutants is consistent with the presence of an S -ribonuclease inhibitor at the S locus

Analysis of pollen tube growth in situ to investigate self-incompatibility in the wild potato Solanum commersonii

DEVELOPMENT OF INITIAL MATERIAL FOR MARKER ASSISTED POTATO (Solanum tuberosum L.) PARENTAL LINE BREEDING AT THE DIPLOID LEVEL (review)

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