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Genetics and Breeding of Cultivated Potato (Solanum tuberosum L.)
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Genetics and Breeding of Cultivated Potato (Solanum tuberosum L.)

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Genetics, Genomics and Biotechnology".

Deadline for manuscript submissions: closed (20 December 2022) | Viewed by 6478

Special Issue Editors

Prof. Dr. Zewei Luo

E-Mail Website
Guest Editor
School of Biosciences, University of Birmingham, Birmingham B15 2TT, UK
Interests: theoretical and empirical quantitative/population genetics
Dr. Liping Jin

E-Mail Website
Guest Editor
Institute of Horticulture and Flower in Chinese Academy of Agricultural Sciences, Beijing, China
Interests: potato breeding

Special Issue Information

Dear Colleagues,

Cultivated potato (Solanum tuberosum L.), the fourth largest food crop, occupies an increasingly more important place in world food security. However, as an autotetraploid, cultivated potato has genetics of tetrasomic inheritance, making genetic analysis in the crop much more challenging than in any other traditional grain crops such as rice, maize, and wheat; thus, breeding progress achieved in the tetraploid potato is far more difficult to improve than that in diploid crops. Research in the tetraploid plant lags unusually behind that in diploid crops. This Special Issue is designed to publish original omics and/or phenotype data, any novel theoretical/empirical studies, novel experimental protocols or techniques, which have a significant impact on genetics of complex quantitative traits and crop breeding in tetraploid potato (Solanum tuberosum L.). We will also consider any thorough review of newly launched or ongoing national and international consortium projects of potato breeding programs, cases of successfully bred potato cultivars, and characterization of newly discovered potato germplasms.       

Prof. Dr. Zewei Luo
Dr. Liping Jin
Guest Editors

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Keywords

  • genetic analysis
  • plant breeding
  • tetraploid potato
  • Solanum tuberosum L.

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Published Papers (2 papers)

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Research

19 pages, 381 KiB  
Article
Diversity of Late Blight Resistance Genes in the VIR Potato Collection
by Elena V. Rogozina, Alyona A. Gurina, Nadezhda A. Chalaya, Nadezhda M. Zoteyeva, Mariya A. Kuznetsova, Mariya P. Beketova, Oksana A. Muratova, Ekaterina A. Sokolova, Polina E. Drobyazina and Emil E. Khavkin
Plants 2023, 12(2), 273; https://doi.org/10.3390/plants12020273 - 6 Jan 2023
Cited by 4 | Viewed by 2690
Abstract
Late blight (LB) caused by the oomycete Phytophthora infestans (Mont.) de Bary is the greatest threat to potato production worldwide. Current potato breeding for LB resistance heavily depends on the introduction of new genes for resistance to P. infestans (Rpi genes). Such [...] Read more.
Late blight (LB) caused by the oomycete Phytophthora infestans (Mont.) de Bary is the greatest threat to potato production worldwide. Current potato breeding for LB resistance heavily depends on the introduction of new genes for resistance to P. infestans (Rpi genes). Such genes have been discovered in highly diverse wild, primitive, and cultivated species of tuber-bearing potatoes (Solanum L. section Petota Dumort.) and introgressed into the elite potato cultivars by hybridization and transgenic complementation. Unfortunately, even the most resistant potato varieties have been overcome by LB due to the arrival of new pathogen strains and their rapid evolution. Therefore, novel sources for germplasm enhancement comprising the broad-spectrum Rpi genes are in high demand with breeders who aim to provide durable LB resistance. The Genbank of the N.I. Vavilov Institute of Plant Genetic Resources (VIR) in St. Petersburg harbors one of the world’s largest collections of potato and potato relatives. In this study, LB resistance was evaluated in a core selection representing 20 species of seven Petota series according to the Hawkes (1990) classification: Bulbocastana (Rydb.) Hawkes, Demissa Buk., Longipedicellata Buk., Maglia Bitt., Pinnatisecta (Rydb.) Hawkes, Tuberosa (Rydb.) Hawkes (wild and cultivated species), and Yungasensa Corr. LB resistance was assessed in 96 accessions representing 18 species in the laboratory test with detached leaves using a highly virulent and aggressive isolate of P. infestans. The Petota species notably differed in their LB resistance: S. bulbocastanum Dun., S. demissum Lindl., S. cardiophyllum Lindl., and S. berthaultii Hawkes stood out at a high frequency of resistant accessions (7–9 points on a 9-point scale). Well-established specific SCAR markers of ten Rpi genes—Rpi-R1, Rpi-R2/Rpi-blb3, Rpi-R3a, Rpi-R3b, Rpi-R8, Rpi-blb1/Rpi-sto1, Rpi-blb2, and Rpi-vnt1—were used to mine 117 accessions representing 20 species from seven Petota series. In particular, our evidence confirmed the diverse Rpi gene location in two American continents. The structural homologs of the Rpi-R2, Rpi-R3a, Rpi-R3b, and Rpi-R8 genes were found in the North American species other than S. demissum, the species that was the original source of these genes for early potato breeding, and in some cases, in the South American Tuberosa species. The Rpi-blb1/Rpi-sto1 orthologs from S. bulbocastanum and S. stoloniferum Schlechtd et Bché were restricted to genome B in the Mesoamerican series Bulbocastana, Pinnatisecta, and Longipedicellata. The structural homologs of the Rpi-vnt1 gene that were initially identified in the South American species S. venturii Hawkes and Hjert. were reported, for the first time, in the North American series of Petota species. Full article
(This article belongs to the Special Issue Genetics and Breeding of Cultivated Potato (Solanum tuberosum L.))
15 pages, 26502 KiB  
Article
Identification of Long-Distance Transport Signal Molecules Associated with Plant Maturity in Tetraploid Cultivated Potatoes (Solanum tuberosum L.)
by Zhiming Hui, Jianfei Xu, Yinqiao Jian, Chunsong Bian, Shaoguang Duan, Jun Hu, Guangcun Li and Liping Jin
Plants 2022, 11(13), 1707; https://doi.org/10.3390/plants11131707 - 28 Jun 2022
Cited by 6 | Viewed by 2758
Abstract
Maturity is a key trait for breeders to identify potato cultivars suitable to grow in different latitudes. However, the molecular mechanism regulating maturity remains unclear. In this study, we performed a grafting experiment using the early-maturing cultivar Zhongshu 5 (Z5) and the late-maturing [...] Read more.
Maturity is a key trait for breeders to identify potato cultivars suitable to grow in different latitudes. However, the molecular mechanism regulating maturity remains unclear. In this study, we performed a grafting experiment using the early-maturing cultivar Zhongshu 5 (Z5) and the late-maturing cultivar Zhongshu 18 (Z18) and found that abscisic acid (ABA) and salicylic acid (SA) positively regulate the early maturity of potato, while indole-3-acetic acid (IAA) negatively regulated early maturity. A total of 43 long-distance transport mRNAs are observed to be involved in early maturity, and 292 long-distance transport mRNAs involved in late maturity were identified using RNA sequencing. Specifically, StMADS18, StSWEET10C, and StSWEET11 are detected to be candidate genes for their association with potato early maturity. Metabolomic data analysis shows a significant increase in phenolic acid and flavonoid contents increased in the scion of the early-maturing cultivar Z5, but a significant decrease in amino acid, phenolic acid, and alkaloid contents increased in the scion of the late-maturing cultivar Z18. This work reveals a significant association between the maturity of tetraploid cultivated potato and long-distance transport signal molecules and provides useful data for assessing the molecular mechanisms underlying the maturity of potato plants and for breeding early-maturing potato cultivars. Full article
(This article belongs to the Special Issue Genetics and Breeding of Cultivated Potato (Solanum tuberosum L.))
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