Chilling stress tolerance of two soya bean cultivars: Phenotypic and molecular responses

Abstract

Soya bean [Glycine max (L.) Merr.] is an important legume crop with a significant worldwide production (Govindasamy et al., 2017), accounting for 340 million metric tons (mmt) in 2017. Exceptionally high protein (40%) and oil (20%) content make soya bean an outstanding source of nutrition that is used in a number of food products for humans, as well as in animal feeds. In addition, oil extracted from soya bean seeds can be used in the production of biofuels (Zhang, Pan, & Stellwag, 2008). All these benefits can be attributed to the symbiotic interaction of soya bean with Bradyrhizobium japonicum occurring in root nodules, which results in the fixation of atmospheric nitrogen (Zhang, Wang, et al., 2014). This cooperation benefits the environment by decreasing the need for the application of fertilizers and improving soil quality for subsequent crops, such as wheat or maize. In 2017, the production of soya bean in the European Union accounted for 2.74 mmt, which represented ~8% of the EU demand for soya bean seed, oil and meal. Simultaneously, the thriving animal production industry required the European Union to import over 33 mmt of soya bean products, mainly from Argentina and Brazil (https://www. idhsu stain ablet rade.com/uploa ded/2019/04/Europ ean-Soy-Monit or.pdf). The high demand for soya bean-derived products and difficult environmental conditions in temperate climates of the Northern and Central Europe, due to cold springs and early summer droughts,

Cold stress‐induced miRNA and degradome changes in four soybean varieties differing in chilling resistance

“…Our approach based on the use of high‐throughput methods broadens the knowledge of mode of action of miRNAs in soybean plants. A previous study showed that cold stress influences the growth of two tested varieties, namely Augusta and Fiskeby V, which was observed as phenotypic changes (Kuczyński et al, 2020). It was also shown that under chilling stress, the expression levels of several miRNAs (miR169, miR319, miR397 and miR398) and their target genes had changed.…”

“…These interactions comprise mRNA cleavage based on the binding to complementary sequences within its target genes as well as translation inhibition by restriction of the ribosome binding process (Bartel, 2004). To date, a number of miRNAs in soybean has been reported to be associated with response to abiotic and biotic stresses such as drought, salinity (Liu et al, 2016), phosphate starvation (Xu et al, 2013), cold (Kuczyński et al, 2020) and cyst nematode infection (Li et al, 2012). However, the involvement of miRNAs in the chilling stress response in soybean is poorly explained and needs further investigation.…”

Progress and Prospects of the Molecular Basis of Soybean Cold Tolerance

“…Several studies conducted on soybeans have shown that Circular (circRNA)- and MicroRNA (miRNA)-based gene regulation were also involved in coordinating soybean responses to cold stress in post-transcriptional regulation [ 6 , 73 , 74 , 75 , 76 , 77 , 78 ]. In cold-treated soybean plants, miR166u, miR171p, miR2111f, and miR169c may regulate different targets in mature nodules through mRNA degradation [ 6 ].…”

Формування Продуктивності Сої Залежно Від Строків Сівби Та Регуляторів Росту Рослин

“…Сорти української селекції мають безліч переваг, вони високопродуктивні, посухостійкі, адаптовані до наших місцевих умов, генетично не модифіковані, за урожайністю і вмістом білка не поступаються іноземним, а інколи мають певні переваги [2,4,5]. Кожен сорт потребує вивчення оптимальних параметрів агротехнічних прийомів, серед яких важливе значення належить строкам сівби та стимуляторам росту, що особливо важливо в умовах зміни клімату [6][7][8].…”