Browsing by Author "Shannon, J. Grover"
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- Genetic variants in root architecture-related genes in a Glycine soja accession, a potential resource to improve cultivated soybeanPrince, Silvas J.; Li, Song; Qiu, Dan; Maldonado dos Santos, Joao V.; Chai, Chenglin; Joshi, Trupti; Patil, Gunvant; Valliyodan, Babu; Vuong, Tri D.; Murphy, Mackensie; Krampis, Konstantinos; Tucker, Dominic M.; Biyashev, Ruslan M.; Dorrance, Anne E.; Saghai-Maroof, Mohammad A.; Xu, Dong; Shannon, J. Grover; Nguyen, Henry T. (2015-02-25)Background Root system architecture is important for water acquisition and nutrient acquisition for all crops. In soybean breeding programs, wild soybean alleles have been used successfully to enhance yield and seed composition traits, but have never been investigated to improve root system architecture. Therefore, in this study, high-density single-feature polymorphic markers and simple sequence repeats were used to map quantitative trait loci (QTLs) governing root system architecture in an inter-specific soybean mapping population developed from a cross between Glycine max and Glycine soja. Results Wild and cultivated soybean both contributed alleles towards significant additive large effect QTLs on chromosome 6 and 7 for a longer total root length and root distribution, respectively. Epistatic effect QTLs were also identified for taproot length, average diameter, and root distribution. These root traits will influence the water and nutrient uptake in soybean. Two cell division-related genes (D type cyclin and auxin efflux carrier protein) with insertion/deletion variations might contribute to the shorter root phenotypes observed in G. soja compared with cultivated soybean. Based on the location of the QTLs and sequence information from a second G. soja accession, three genes (slow anion channel associated 1 like, Auxin responsive NEDD8-activating complex and peroxidase), each with a non-synonymous single nucleotide polymorphism mutation were identified, which may also contribute to changes in root architecture in the cultivated soybean. In addition, Apoptosis inhibitor 5-like on chromosome 7 and slow anion channel associated 1-like on chromosome 15 had epistatic interactions for taproot length QTLs in soybean. Conclusion Rare alleles from a G. soja accession are expected to enhance our understanding of the genetic components involved in root architecture traits, and could be combined to improve root system and drought adaptation in soybean.
- Registration of 'S17-2243C': A non-genetically modified maturity group IV soybean cultivar with high yield and elevated oil concentrationChen, Pengyin; Shannon, J. Grover; Lee, Dongho; do Granja, Matheus Ogando; Vieira, Caio Canella; Lee, Yi-Chen; Ali, Md Liakat; do Nascimento, Emanuel Ferrari; Scaboo, Andrew; Crisel, Melissa; Smothers, Scotty; Clubb, Michael; Selves, Stewart; Nguyen, Henry T.; Li, Zenglu; Mitchum, Melissa Goellner; Averitt, Ben; Bond, Jason P.; Meinhardt, Clinton G.; Usovsky, Mariola; Li, Shuxian; Smith, James R.; Gillen, Anne M.; Mengistu, Alemu; Zhang, Bo; Mozzoni, Leandro Angel; Moseley, David (Wiley, 2023-02)'S17-2243C' (Reg. no. CV-557, PI 700003) is a semi-determinate, maturity group IV (relative maturity 4.9), non-genetically modified (non-GM) soybean [Glycine max (L.) Merr.] cultivar developed and released by the University of Missouri-Fisher Delta Research, Extension, and Education Center. S17-2243C was developed to meet the growing demands for new non-GM soybean cultivars with high yield and elevated seed oil content. S17-2243C is resistant to stem canker and charcoal rot and has tolerance to salinity conditions. Seed of S17-2243C has averaged 232 g kg(-1) of oil concentration on a dry weight basis, which was significantly higher than all check cultivars in the 2020 USDA Uniform Soybean Tests, Southern States. S17-2243C was tested against high-yielding private and public soybean cultivars from 2018 to 2021 in 80 locations across 12 states, including Alabama, Arkansas, Illinois, Kentucky, Louisiana, Mississippi, Missouri, North Carolina, Ohio, South Carolina, Tennessee, and Virginia. With high yield potential, broad adaptability, early maturity, elevated seed oil content, and non-GM traits, S17-2243C is an excellent cultivar choice for soybean growers adopting alternative growing systems and benefiting from premium prices offered for non-GM soybean products.