scholarly journals Epigenetic consequences of interploidal hybridisation in synthetic and natural interspecific potato hybrids

2019 ◽  
Vol 222 (4) ◽  
pp. 1981-1993 ◽  
Author(s):  
Nicolás Cara ◽  
María Soledad Ferrer ◽  
Ricardo Williams Masuelli ◽  
Elsa Lucila Camadro ◽  
Carlos Federico Marfil
Keyword(s):  
Interspecific Potato Hybrids

POTATO INTERSPECIFIC POTATO HYBRIDS RESISTANT TO DISEASE CAUSATIVE AGENTS

2018 ◽  
Author(s):  
E.V. Rogozina ◽  
◽  
N.A. Chalaya ◽  
M.P. Beketova ◽  
V.A. Biryukova ◽  
...  
Keyword(s):  
Causative Agents ◽  
Interspecific Potato Hybrids

scholarly journals Identification of Interspecific Potato Hybrids with Combined Resistance to Late Blight (Phytophthora Infestans) and Nematode (Globodera Rostochiensis)

2020 ◽  
Vol 74 (3) ◽  
pp. 188-195
Author(s):  
Nadezhda Zoteyeva ◽  
Guna Sprūde ◽  
Natalia Klimenko ◽  
Ieva Mežaka
Keyword(s):  
Molecular Markers ◽  
Late Blight ◽  
Phytophthora Infestans ◽  
Late Blight Resistance ◽  
Globodera Rostochiensis ◽  
Cyst Nematode ◽  
Potato Yields ◽  
Highly Correlated ◽  
Interspecific Potato Hybrids ◽  
Moderately Resistant

AbstractLate blight (agent Phytophthora infestans) and potato cyst nematode (PCN) caused by Globodera rostochiensis are economically important pathogens, which may significantly reduce potato yields. In this study interspecific potato hybrids were used as a source of resistance for combined resistance to economically important potato pathogens: late blight and cyst nematode. The aim of our study was to identify hybrid progenies with combined resistance to both pathogens and to verify the applicability of several molecular markers associated with resistance to G. rostochiensis pathotype Ro1 to identify resistant plants. Ninety-two clones of eleven original interspecific potato hybrids obtained in crosses with the cultivated S. tuberosum group tuberosum, S. tuberosum group Andigena, S. tuberosum group Phureja and wild S. guerreroense, S. microdontum, S. kurtzianum, S. neoantipoviczii and S. tarijense potato species were screened in bioassays and by molecular markers. PCN resistant or moderately resistant clones were found among the progenies of nine hybrids. Results were highly correlated with resistance status detected by molecular markers linked to the H1 (marker 57R) and Gro1-4 (marker Gro1) genes. Marker CP113 (linked to the H1 gene) was not polymorphic and failed to detect resistance status. Combination of foliar late blight resistance and resistance to PCN was identified in hybrids obtained in crosses with plants of species S. microdontum, S. tarijense and S. phureja and in the hybrid between S. guerreroense and Black’s P. infestans race differential carrying gene R-5.

scholarly journals The results of interspecific potato hybrids evaluation using marker-assisted, laboratory and field methods

2020 ◽  
Vol 421 ◽  
pp. 052024
Author(s):  
V A Biryukova ◽  
A A Churakov ◽  
V A Zharova ◽  
A N Khalipsky ◽  
V A Kozlov
Keyword(s):  
Field Methods ◽  
Interspecific Potato Hybrids

scholarly journals South American species Solanum alandiae Card. and S. okadae Hawkes et Hjerting as potential sources of genes for potato late blight resistance

2020 ◽  
Vol 181 (1) ◽  
pp. 73-83
Author(s):  
O. A. Muratova (Fadina) ◽  
M. P. Beketova ◽  
M. A. Kuznetsova ◽  
E. V. Rogozina ◽  
E. E. Khavkin
Keyword(s):  
Late Blight ◽  
Wild Species ◽  
Potato Cultivar ◽  
Late Blight Resistance ◽  
Potato Late Blight ◽  
South American ◽  
South American Species ◽  
Pests And Diseases ◽  
Sequence Characterized Amplified Region ◽  
Interspecific Potato Hybrids

For several decades, wild species of Solanum L. section Petota Dumort. have been involved in potato cultivar breeding for robust resistance to pests and diseases. Potato late blight (LB) is caused by oomycete Phytophthora infestans (Mont.) de Bary, and the genes for race-specific resistance to P. infestans (Rpi genes) have been introgressed into cultivated potatoes by remote crosses and trans- or cisgenesis, first from S. demissum Buk. and, more recently, from other wild species, such as S. bulbocastanum Dun., S. stoloniferum Schlechtd. et Bché, and S. venturii Hawkes et Hjerting (according to the nomenclature by Hawkes, 1990). Most wild species already involved in breeding for LB resistance came from North and Central Americas: series Bulbocastana (Rydb.) Hawkes, Demissa Buk. and Longipedicellata Buk., and some Rpi genes of these species have been already characterized in much detail. Rpi genes of South American species, including the series Tuberosa (Rydb.) Hawkes, have not been sufficiently investigated. Among the latter, this study focuses on the Rpi genes of S. alandiae Card. and S. okadae Hawkes et Hjerting. Four accessions of S. alandiae, one accession of S. okadae and 11 clones of interspecific potato hybrids comprising S. alandiae germplasm from the VIR collection were PCR-screened using specific SCAR (Sequence Characterized Amplified Region) markers for eight Rpi genes. SCAR amplicons of five Rpi genes registered in this study were validated by comparing their sequences with those of prototype genes deposited in the NCBI Genbank. Among the structural homologues of Rpi genes found in S. alandiae and S. okadae, of special interest are homologues of CC-NB-LRR resistance genes with broad specificity towards P. infestans races, in particular R2=Rpi-blb3, R8, R9a, Rpi-vnt1 and Rpi-blb2 (94–99, 94–99, 86–89, 92–98 and 91% identity with the prototype genes, respectively). Our data may help to better understand the process of Rpi gene divergence along with the evolution of tuberbearing Solanum species, particularly in the series Tuberosa.

Interspecific potato hybrids as a resource for late blight resistance genes

2014 ◽  
Vol 40 (1) ◽  
pp. 10-13
Author(s):  
E. V. Rogozina ◽  
V. A. Kolobaev ◽  
E. E. Khavkin ◽  
M. A. Kuznetsova ◽  
M. P. Beketova ◽  
...  
Keyword(s):  
Late Blight ◽  
Resistance Genes ◽  
Late Blight Resistance ◽  
Blight Resistance ◽  
Interspecific Potato Hybrids
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