Novel and stable major QTLs conferring resistance to peanut bud necrosis disease and identification of resistant high yielding peanut breeding lines

Jasani, Mital D.; Kamdar, J. H.; Bera, Satarupa S.; Sunkad, Gururaj; Bera, SK

doi:10.1007/s10681-021-02835-7

Cited by 8 publications

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“…Chu et al (2011) first ever developed a high oleic acid content variety, "Tifguard High O/L" using marker-assisted backcrossing. Molecular breeding presents overwhelming prospects for the rapid development of high oleic cultivars with high specificity and precision (Pandey et al, 2012;Janila et al, 2016;Jasani et al, 2021;Kamdar et al, 2021). In peanuts, molecular markers associated with various traits have been reported (Bera et al, 2013(Bera et al, , 2014aGoswami et al, 2013;Kamdar et al, 2014).…”

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Does improved oleic acid content due to marker-assisted introgression of ahFAD2 mutant alleles in peanuts alter its mineral and vitamin composition?

et al. 2022

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Peanuts (Arachis hypogaea L.) with high oleic acid content have extended shelf life and several health benefits. Oleic, linoleic, and palmitic acid contents in peanuts are regulated by ahFAD2A and ahFAD2B mutant alleles. In the present study, ahFAD2A and ahFAD2B mutant alleles from SunOleic 95R were introgressed into two popular peanut cultivars, GG-7 and TKG19A, followed by markers-assisted selection (MAS) and backcrossing (MABC). A total of 22 MAS and three MABC derived lines were developed with increased oleic acid (78–80%) compared to those of GG 7 (40%) and TKG 19A (50%). Peanut kernel mineral and vitamin composition remained unchanged, while potassium content was altered in high oleic ingression lines. Two introgression lines, HOMS Nos. 37 and 113 had over 10% higher pooled pod yield than respective best check varieties. More than 70% recurrent parent genome recovery was observed in HOMS-37 and HOMS-113 through recombination breeding. However, the absence of recombination in the vicinity of the target locus resulted in its precise introgression along with ample background genome recovery. Selected introgression lines could be released for commercial cultivation based on potential pod yield and oleic acid content.

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confidence: 99%