The importance of Endosperm Balance Number in potato breeding and the evolution of tuber-bearing Solanum species

Euphytica ◽  
1992 ◽  
Vol 60 (2) ◽  
pp. 105-113 ◽  
Author(s):  
Rodomiro Ortiz ◽  
Mark K. Ehlenfeldt
Keyword(s):  
Potato Breeding ◽  
Solanum Species ◽  
Endosperm Balance Number

Glycoalkaloid composition of wild and cultivated tuber-bearing Solanum species of potential value in potato breeding programs

1978 ◽  
Vol 26 (5) ◽  
pp. 1246-1248 ◽  
Author(s):  
Stanley F. Osman ◽  
Samuel F. Herb ◽  
Thomas J. Fitzpatrick ◽  
P. Schmiediche
Keyword(s):  
Potato Breeding ◽  
Solanum Species ◽  
Breeding Programs ◽  
Potential Value

Steroidal glycoalkaloids in tubers and leaves of Solanum species used in potato breeding

Euphytica ◽  
1988 ◽  
Vol 39 (S3) ◽  
pp. 147-158 ◽  
Author(s):  
W. M. J. Van Gelder ◽  
J. H. Vinke ◽  
J. J. C. Scheffer
Keyword(s):  
Potato Breeding ◽  
Solanum Species

Advantages of Wild Diploid Solanum Species Over Cultivated Diploid Relatives in Potato Breeding Programs

2005 ◽  
Vol 53 (4) ◽  
pp. 669-674 ◽  
Author(s):  
Shelley H. Jansky ◽  
Stanley J. Peloquin
Keyword(s):  
Potato Breeding ◽  
Solanum Species ◽  
Breeding Programs

Genetic Resources (Including Wild and Cultivated Solanum Species) and Progress in their Utilisation in Potato Breeding

2006 ◽  
Vol 49 (1) ◽  
pp. 49-65 ◽  
Author(s):  
J. E. Bradshaw ◽  
G. J. Bryan ◽  
G. Ramsay
Keyword(s):  
Genetic Resources ◽  
Potato Breeding ◽  
Solanum Species

The Role of 2n Gametes and Endosperm Balance Number in the Origin and Evolution of Polyploids in the Tuber-Bearing Solanums

Genetics ◽  
2003 ◽  
Vol 163 (1) ◽  
pp. 287-294 ◽  
Author(s):  
Domenico Carputo ◽  
Luigi Frusciante ◽  
Stanley J Peloquin
Keyword(s):  
Parental Species ◽  
2N Gametes ◽  
Solanum Species ◽  
Endosperm Balance Number ◽  
Sexual Polyploidization ◽  
Ancestral Species ◽  
Origin And Evolution ◽  
Bilateral Sexual Polyploidization ◽  
2N Gamete

Abstract Polyploidization has played a major role in the origin and evolution of polyploid species. In this article we outline the unique characteristics of 2n gametes and implications of their participation in the evolution of polyploid Solanum species. The genetic consequences of 2n gametes indicate that sexual polyploidization results in greater variability, fitness, and heterozygosity than does somatic doubling. Further, the mechanisms of 2n gamete formation and the frequency of 2n gamete-forming genes in present polyploids and their ancestral species provide additional evidence of their involvement. Equally important is the endosperm, via the endosperm balance number (EBN) incompatibility system, in complementing the role of 2n gametes. In fact, the EBN system acts as a screen for either 1n or 2n gametes, depending on the EBN and chromosome numbers of parental species. EBN in combination with 2n gametes maintains the ploidy integrity of diploid ancestral species, while providing the flexibility for either unilateral or bilateral sexual polyploidization.

scholarly journals NLR Genes Related Transcript Sets in Potato Cultivars Bearing Genetic Material of Wild Mexican Solanum Species

Agronomy ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 2426
Author(s):  
Alex V. Kochetov ◽  
Dmitry A. Afonnikov ◽  
Nikolay Shmakov ◽  
Gennady V. Vasiliev ◽  
Olga Y. Antonova ◽  
...  
Keyword(s):  
Potato Breeding ◽  
Reference Genome ◽  
De Novo ◽  
Genetic Material ◽  
Solanum Species ◽  
Potato Cultivars ◽  
R Genes ◽  
Genes Expression ◽  
History Of ◽  
Cultivated Species

The long history of potato breeding includes the numerous introgressions of resistance genes from many wild species of South and Central America as well as from cultivated species into the breeding genepool. Most R genes belong to the NLR family with nucleotide-binding site–leucine-rich repeat. The aim of this research concerns an evaluation of NLR genes expression in transcriptomes of three potato cultivars (Evraziya, Siverskij, Sudarynya), which combine genetic material from wild and cultivated potato species, and each bears intragenic markers of RB/Rpi-blb1/Rpi-sto1 genes conferring broad-range resistance to late blight. The transcriptomes of the cultivars were compared before and 24 h after the Phytophthora infestans inoculation. The induction of RB/Rpi-blb1/Rpi-sto1 transcript after 24 h of inoculation was detected in the resistant cultivars Siverskij and Sudarynya but not in susceptible cv. Evraziya. This demonstrates the importance of transcriptomic assay for understanding the results of marker-assisted selection and phenotyping. Interestingly, assembling the transcriptomes de novo and analysis with NLR-parser tool revealed significant fractions of novel NLR genes with no homology to the reference genome (from 103 (cv. Siverskij) to 160 (S. stoloniferum, 30514/15). Comparison of novel NLRs demonstrated a relatively small intersection between the genotypes that coincided with their complex pedigrees with several interspecific hybridization events. These novel NLRs may facilitate the discovery of new efficient R genes.

The use of wild solanum species in German potato breeding of the past and today

1966 ◽  
Vol 43 (3) ◽  
pp. 63-80 ◽  
Author(s):  
H. Ross
Keyword(s):  
Potato Breeding ◽  
Solanum Species ◽  
Wild Solanum Species ◽  
The Past ◽  
Wild Solanum

scholarly journals The importance of Arabidopsis seed mutants in the elucidation of the molecular basis of Endosperm Balance Number in tuberbearing Solanum species

BIOCELL ◽  
2006 ◽  
Vol 30 (3) ◽  
pp. 413-421
Author(s):  
P. CORNEJO ◽  
E.L. CAMADRO ◽  
R.W. MASUELLI
Keyword(s):  
Molecular Basis ◽  
Solanum Species ◽  
Endosperm Balance Number ◽  
Arabidopsis Seed

scholarly journals Production of hybrid potatoes: Are heterozygosity and ploidy levels important?

2019 ◽  
pp. 687-694
Author(s):  
Jane Muthoni ◽  
Hussein Shimelis ◽  
Rob Melis
Keyword(s):  
Genetic Basis ◽  
Potato Breeding ◽  
Allelic Diversity ◽  
Solanum Species ◽  
Ploidy Levels ◽  
Cultivated Potato ◽  
Tetraploid Level ◽  
Diploid Level ◽  
Do So

It has been proposed that maximizing heterosis for yield in potato may be achieved by maximizing heterozygosity and associated intra and interlocus interactions. Tetraploids offer more opportunities to create such interactions than diploids hence the general observations that tetraploids are higher yielding than diploids. Consequently, efforts have been made to increase heterozygosity in tetraploids by introgressing allelic diversity from other Solanum species into cultivated potato. However, conventional potato breeding is difficult because the cultivated potato is an autotetraploid with tetrasomic inheritance and it comprises highly heterozygous individuals which suffer inbreeding depression upon selfing; breeding at the tetraploid level is slow and less efficient than at diploid level. At the diploid level, it is possible to breed for and fix traits under recessive genetic control; it is nearly impossible to do so at the tetraploid level. There is also rapid response to selection due to greater variation in diploids than tetraploids. Consequently, there have been efforts to convert potato from an asexually propagated tetraploid crop into an inbred seed-propagated diploid; this is by production of inbred lines through selfing of the tetraploids to assemble desirable combinations of genes in the inbreds. These efforts are at the experimental stages and a lot of research needs to be done before they are confirmed. Because currently there is little experimental evidence to support superiority of the inbred seed-propagated diploid strategy, it appears the theory that heterosis for yield in potato may be achieved by maximizing heterozygosity and associated intra and interlocus interactions remain unchallenged; these interactions are more in tetraplods than in diploids. This paper therefore looks at genetic basis of yield heterosis in cultivated potato and the role of heterozygosity and ploidy level in production of hybrid potatoes.

Allelism of Endosperm Balance Number (EBN) in Mexican tuber-bearing Solanum species

1990 ◽  
Vol 80 (2) ◽  
pp. 161-166 ◽  
Author(s):  
J. B. Bamberg ◽  
R. E. Hanneman
Keyword(s):  
Solanum Species ◽  
Endosperm Balance Number
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