Soybean Seed Phenolics, Sugars, and Minerals Are Altered by Charcoal Rot Infection in MG III Soybean Cultivars

Bellaloui, Nacer; Mengistu, Alemu; Zobiole, Luiz Henrique Saes; Abbas, Hamed K.; Kassem, My Abdelmajid

doi:10.4236/fns.2014.519198

Cited by 5 publications

(1 citation statement)

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“…Soybean [ Glycine max (L.) Merr.] is an essential crop worldwide due to its high protein and oil content; it provides valuable source of nutrition for human consumption and main protein source in for livestock feed ( Bellaloui et al, 2014 ). As one of the major crops grown in China, soybean is widely used for edible oil and soy-based foods such as tofu, soymilk, sauces, and many other products.…”

Section: Discussionmentioning

confidence: 99%

Selection of the Salt Tolerance Gene GmSALT3 During Six Decades of Soybean Breeding in China

Guan

Liu

et al. 2021

Front. Plant Sci.

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Salt tolerance is an important trait that affects the growth and yield of plants growing in saline environments. The salt tolerance gene GmSALT3 was cloned from the Chinese soybean cultivar Tiefeng 8, and its variation evaluated in Chinese wild soybeans and landraces. However, the potential role of GmSALT3 in cultivation, and its genetic variation throughout the history of Chinese soybean breeding, remains unknown. Here we identified five haplotypes of GmSALT3 in 279 Chinese soybean landraces using a whole genome resequencing dataset. Additionally, we developed five PCR-based functional markers: three indels and two cleaved amplified polymorphic sequences (CAPS) markers. A total of 706 Chinese soybean cultivars (released 1956–2012), and 536 modern Chinese breeding lines, were genotyped with these markers. The Chinese landraces exhibited relatively high frequencies of the haplotypes H1, H4, and H5. H1 was the predominant haplotype in both the northern region (NR) and Huanghuai region (HHR), and H5 and H4 were the major haplotypes present within the southern region (SR). In the 706 cultivars, H1, H2, and H5 were the common haplotypes, while H3 and H4 were poorly represented. Historically, H1 gradually decreased in frequency in the NR but increased in the HHR; while the salt-sensitive haplotype, H2, increased in frequency in the NR during six decades of soybean breeding. In the 536 modern breeding lines, H2 has become the most common haplotype in the NR, while H1 has remained the highest frequency haplotype in the HHR, and H5 and H1 were highest in the SR. Frequency changes resulting in geographically favored haplotypes indicates that strong selection has occurred over six decades of soybean breeding. Our molecular markers could precisely identify salt tolerant (98.9%) and sensitive (100%) accessions and could accurately trace the salt tolerance gene in soybean pedigrees. Our study, therefore, not only identified effective molecular markers for use in soybean, but also demonstrated how these markers can distinguish GmSALT3 alleles in targeted breeding strategies for specific ecoregions.

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Section: Discussionmentioning

confidence: 99%