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

Autor:	Kamdar JH; ICAR-Directorate of Groundnut Research, Junagadh, India.; Department of Microbiology, RK University, Rajkot, India., Jasani MD; ICAR-Directorate of Groundnut Research, Junagadh, India., Chandrashekar AB; ICAR-Directorate of Groundnut Research, Junagadh, India., Janila P; International Crop Research Institute for Semi-Arid Tropics, Hyderabad, India., Pandey MK; International Crop Research Institute for Semi-Arid Tropics, Hyderabad, India., Georrge JJ; Christ College, Rajkot, India.; Department of Bioinformatics, University of North Bengal, Siliguri, India., Varshney RK; International Crop Research Institute for Semi-Arid Tropics, Hyderabad, India.; State Agricultural Biotechnology Centre, Centre for Crop & Food Innovation, Food Futures Institute, Murdoch University, Murdoch, WA, Australia., Bera SK; ICAR-Directorate of Groundnut Research, Junagadh, India.
Jazyk:	angličtina
Zdroj:	Frontiers in plant science [Front Plant Sci] 2022 Jul 29; Vol. 13, pp. 942617. Date of Electronic Publication: 2022 Jul 29 (Print Publication: 2022).
DOI:	10.3389/fpls.2022.942617
Abstrakt:	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. Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. (Copyright © 2022 Kamdar, Jasani, Chandrashekar, Janila, Pandey, Georrge, Varshney and Bera.)
Databáze:	MEDLINE
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