Solynta was founded by Hein Kruyt,[1] Pim Lindhout, Theo Schotte and Johan Trouw[2] in 2006.[3] Solynta has been focusing on developing potato hybrids through breeding.
Technology
Hybrid breeding allows a breeder to combine in an easy way favorable traits from one parental line A with other desired traits from parental line B in its F1 offspring. This requires potato plants which are self-compatible and diploid, that can be used to generate the parental lines. To this end, Solynta crossed in 2008 a diploid potato with Solanum chacoense to start hybrid breeding.[4]
The first step is to develop parental lines that are homozygous. Although potato is very heterozygous,[4] it is possible to generate homozygous potato lines.[5][6][7]
Self-compatible diploid potato was found by Hosaka and Hanneman in the Solanum chacoense used by Solynta.[8] The first results of the breeding efforts were published in 2011 by Lindhout et al.,[5] a few years later this potential of hybrid breeding in potato was acknowledged by the US scientific community.[9] Further tails of the breeding process, including the original donors have been described in Lindhout et al., 2018.[10] The mechanisms of self-compatibility in potato have recently been unraveled simultaneously by Eggers et al.[11] and Ma et al., identifying the Sli-gene.[12]
Meijer et al. (2018)[13] and Prinzenberg et al. (2018)[14] showed that using the potato breeding material of Solynta, fast and targeted progress on breeding for specific traits could be achieved. In 2017, Solynta showed in a program called HiSPoB[15] that it was able to introduce a double stack phytophthora resistance in their hybrid material, which was publicly demonstrated (Su et al. 2020).[16] With this demonstration the principle of marker-assisted breeding, known and applied in other major crops, was demonstrated for the first time for potato. Solynta's potato breeding techniques include F1 hybrid potato breeding.[17][5]
Research collaborations
Solynta has participated in a number of scientific collaborations and networks, in order to gain experience with the technology and to allow public researchers to work with genetic material made available by Solynta.
SolAce: methods for improving agroecosystem and crop efficiency for water and nutrient use[18]
Protecta: pathogen-informed resistance to oomycete diseases in ecosystems, agriculture and aquaculture[19]
For public research purposes, the diploid self-compatible line "Solyntus" was released to the scientific community in collaboration with Wageningen UR – Plant Breeding.[23] Genetic material from Solynta was used by groups in the UK[24] and Sweden[25] to perform research on fundamental aspects of potato biology. The collaborations have led to an acknowledgment by the public scientific community for the openness and transparency of Solynta.[26]
The Sli gene was recently cloned by Wageningen University and Solynta in 2021, which will allow for faster and more focused breeding.[27][28] It primarily focuses on Hybrid True Potato Seeds (HTPS) that are not genetically modified.[29][1] Using potato seeds, 25 grams of seeds can be utilized in place of 2500kg of tubers as used in traditional potato planting.[30] This method of potato breeding received a U.S. patent in 2020.[31]
Solynta has worked on developing on a late blight-resistant potato variety[32] using cross-breeding.[33] Scientists at the company have also worked on published genome sequences of potatoes.[34]
Impact and further research
Two patents have been granted on hybrid breeding technology, one in the US in 2020.[35] Solynta signed a collaboration with the largest potato starch processor, AVEBE in 2021. Their joint goal is to develop hybrid potato varieties with added value for processing starch and other ingredients, while maintaining a sustainable crop production.[36]
First variety registrations were obtained in Zimbabwe (2021) and Kenya (2023). A collaboration agreement with seed-treatment specialist Incotec was signed in 2022.
The case of hybrid potato breeding has led to a number of studies, initiated by Rathenau Institute (Beumer & Edelenbosch, 2019; Edelenbosch & Munnichs, 2020).[37][38]
Solynta's model of using and regulating ownership of newly developed technologies is discussed in Beumer et al.'s framework of Commons.[39] The framework states there is a diversity of genetic material available and accessible and supports a scientific basis for further development of the potato value chain.[40]
↑ Hosaka, Kazuyoshi; E. Hanneman, Jr., Robert (1998). "Genetics of self-compatibility in a self-incompatible wild diploid potato species Solanum chacoense. 2. Localization of an S locus inhibitor (Sli) gene on the potato genome using DNA markers". Euphytica. 103 (2): 265–271. doi:10.1023/A:1018380725160. S2CID29400272.
↑ Jansky, Shelley H.; Charkowski, Amy O.; Douches, David S.; Gusmini, Gabe; Richael, Craig; Bethke, Paul C.; Spooner, David M.; Novy, Richard G.; De Jong, Hielke; De Jong, Walter S.; Bamberg, John B.; Thompson, A. L.; Bizimungu, Benoit; Holm, David G.; Brown, Chuck R.; Haynes, Kathleen G.; Sathuvalli, Vidyasagar R.; Veilleux, Richard E.; Miller, J. Creighton; Bradeen, Jim M.; Jiang, Jiming (July 2016). "Reinventing Potato as a Diploid Inbred Line-Based Crop". Crop Science. 56 (4): 1412–1422. doi:10.2135/cropsci2015.12.0740. hdl:10919/97862.
↑ Lindhout, Pim; De Vries, Michiel; Ter Maat, Menno; Ying, Su; Viquez-Zamora, Marcela; Van Heusden, Sjaak (2018). "Hybrid potato breeding for improved varieties". Achieving sustainable cultivation of potatoes Volume 1. Burleigh Dodds Series in Agricultural Science. pp.99–122. doi:10.19103/as.2016.0016.04. ISBN978-1-78676-100-2. S2CID188905534.
↑ Su, Ying; Viquez-Zamora, Marcela; den Uil, Danielle; Sinnige, Jarno; Kruyt, Hein; Vossen, Jack; Lindhout, Pim; van Heusden, Sjaak (February 2020). "Introgression of Genes for Resistance against Phytophthora infestans in Diploid Potato". American Journal of Potato Research. 97 (1): 33–42. doi:10.1007/s12230-019-09741-8. S2CID208650047.
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