QTL analysis reveals quantitative resistant loci for Phytophthora infestans and Tecia solanivora in tetraploid potato (Solanum tuberosum L.)

Santa, Juan David; Berdugo-Cely, Jhon A.; Cely-Pardo, Liliana; Soto-Suárez, Mauricio; Mosquera, Teresa; Galeano, H M Carlos

doi:10.1371/journal.pone.0199716

Cited by 20 publications

(12 citation statements)

References 96 publications

(110 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In earlier sections of this review, some polyploids were shown to be more tolerant to abiotic stress induced by genome expression regulation leading to changes in physiological traits, hormonal production, or better antioxidant systems. QTL analysis revealed quantitative resistance for Phytophthora infestans and Tecia solanivora in 4x potato ( Santa et al, 2018 ). Tetraploid and 3x banana cultivars had little damage due to nematodes and did not significantly reduce their plant height ( Dochez et al, 2009 ).…”

Section: Polyploidy Improves Stress Tolerancementioning

confidence: 99%

Synthetic Polyploidy in Grafted Crops

et al. 2020

View full text Add to dashboard Cite

Synthetic polyploids have been extensively studied for breeding in the last decade. However, the use of such genotypes at the agronomical level is still limited. Polyploidization is known to modify certain plant phenotypes, while leaving most of the fundamental characteristics apparently untouched. For this reason, polyploid breeding can be very useful for improving specific traits of crop varieties, such as quality, yield, or environmental adaptation. Nevertheless, the mechanisms that underlie polyploidy-induced novelty remain poorly understood. Ploidy-induced phenotypes might also include some undesired effects that need to be considered. In the case of grafted or composite crops, benefits can be provided both by the rootstock's adaptation to the soil conditions and by the scion's excellent yield and quality. Thus, grafted crops provide an extraordinary opportunity to exploit artificial polyploidy, as the effects can be independently applied and explored at the root and/or scion level, increasing the chances of finding successful combinations. The use of synthetic tetraploid (4x) rootstocks may enhance adaptation to biotic and abiotic stresses in perennial crops such as apple or citrus. However, their use in commercial production is still very limited. Here, we will review the current and prospective use of artificial polyploidy for rootstock and scion improvement and the implications of their combination. The aim is to provide insight into the methods used to generate and select artificial polyploids and their limitations, the effects of polyploidy on crop phenotype (anatomy, function, quality, yield, and adaptation to stresses) and their potential agronomic relevance as scions or rootstocks in the context of climate change.

show abstract

Section: Polyploidy Improves Stress Tolerancementioning

confidence: 99%

Synthetic Polyploidy in Grafted Crops

et al. 2020

View full text Add to dashboard Cite

show abstract

“…However, with the recent progress in genotyping platforms [28,29] as well as the sequenced potato genome [30], high-density genotyping of tetraploid potato has become possible. Currently, this approach has been used to identify novel QTL and markers associated with different agronomic traits such as late blight resistance [31][32][33], virus resistance [34], tuber quality [35] and other agronomic traits [36]. Santa et al [33] in their study identified six QTL linked to Phytophthora infestans and 15 QTL were mapped for Tecia solanivora in tetraploid potato.…”

Section: Introductionmentioning

confidence: 99%

“…Currently, this approach has been used to identify novel QTL and markers associated with different agronomic traits such as late blight resistance [31][32][33], virus resistance [34], tuber quality [35] and other agronomic traits [36]. Santa et al [33] in their study identified six QTL linked to Phytophthora infestans and 15 QTL were mapped for Tecia solanivora in tetraploid potato. Da Silva et al [34] revealed several major-effect QTL related to Potato virus Y on chromosomes 4 and 5.…”

Section: Introductionmentioning

confidence: 99%

QTL Mapping for Resistance to Early Blight in a Tetraploid Potato Population

et al. 2020

View full text Add to dashboard Cite

Early blight of potato, caused by Alternaria solani, is an economically important foliar disease in most potato-growing regions. Growing cultivars with higher levels of resistance to early blight can reduce tuber yield losses and the need for fungicide applications. In this research, a bi-parental tetraploid potato population, segregating for resistance to early blight in leaves and tubers, was characterized to identify novel quantitative trait loci (QTL) associated with foliar and tuber early blight resistance. Assessment of the disease resistance in the foliage was performed by field evaluation and in tuber under controlled conditions. Results from this study revealed significant differences (P < 0.001) in resistance to A. solani among potato clones both in the leaves and in tubers. There was no statistically significant correlation (r = 0.06, P = 0.35) between the resistance scores from leaves and tubers. Several clones exhibited; however, high levels of resistance both in leaves and tubers and are; thus, promising candidates for breeding for early blight resistance. Linkage mapping revealed several QTL for early blight affecting both foliage and tubers. QTL associated with disease resistance in the tuber were found on chromosomes 1, 2, 3, 4, 8, 11 and 12. QTL associated with disease resistance in foliage were also examined for independence from defoliation, and independent QTL were; thus, found on chromosomes 5 and 11.

show abstract

“…Масштабная попытка картирования локусов количествен ных признаков у картофеля была предпринята в 2018 г. (Santa et al, 2018). Исследователи снова выбрали в каче стве объекта тетраплоидный геном картофеля, отмечая его высокую важность для селекции и при этом существенные затруднения в силу высокой гетерозиготности у автотет раплоидного картофеля.…”

Section: локусы количественных признаков у S Tuberosumunclassified

Genetic aspects of potato resistance to phytophthorosis

et al. 2021

View full text Add to dashboard Cite

Phytophthora infestans Mont. de Bary is the main oomycete pathogen of cultivated crops in the family Solanaceae, especially potato (Solanum tuberosum). Because potato is the fourth most cultivated crop worldwide, its annual losses from late blight are tremendous. Studies of the basic mechanisms of interaction between potato and the late blight pathogen not only expand the fundamental knowledge in this area, but also open up new possibilities for regulating these interactions in order to increase resistance to the pathogen. The interaction of potato and the late blight pathogen can be considered from a genetic point of view, and it is interesting to consider both the response of the potato to the colonization process by P. infestans and the change in gene activity in late blight during plant infection. We can also investigate this process by changing the profile of secondary metabolites of the host and the pathogen. In addition to fundamental work in this area, applied work in the form of the development of new preparations for protecting potatoes is of no less importance. This review briefly describes the main stages of studies of potato resistance to late blight, starting almost from the first works. Much attention is paid to key works on changing the profile of secondary metabolites phytoalexins. A separate section is devoted to the description of both qualitative and quantitative characteristics of potato resistance to the late blight pathogen: their contribution to overall resistance, gene mapping, and regulation capabilities. Both types of traits are important for potato breeding: quantitative resistance due to R-genes is quickly overcome by the pathogen, while quantitative trait loci make it possible to create varieties with almost absolute resistance due to the pyramid of effective genes. The latest approaches in molecular biology make it possible to study translatomic profiles, which makes it possible to look at the interaction of potatoes and the late blight pathogen at a different angle. It has been shown that the process of potato colonization affects not only the activity of various genes and the profile of secondary metabolites: proteinsmarkers of the response to infection from potatoes have also been identified: they are pathogen-bound proteins and plastid carbonic anhydrase. On the part of P. infestans, fungal cellulose synthase proteins and haustorium-specific membrane protein were markers of infection. Thus, the review contains information on the most relevant complex studies of the genetic mechanisms of potato resistance to late blight.

show abstract

QTL analysis reveals quantitative resistant loci for Phytophthora infestans and Tecia solanivora in tetraploid potato (Solanum tuberosum L.)

Cited by 20 publications

References 96 publications

Synthetic Polyploidy in Grafted Crops

Synthetic Polyploidy in Grafted Crops

QTL Mapping for Resistance to Early Blight in a Tetraploid Potato Population

Genetic aspects of potato resistance to phytophthorosis

Contact Info

Product

Resources

About