2022 article
Registration of two peanut recombinant inbred lines (TifGP-5 and TifGP-6) resistant to late leaf spot disease
Chu, Y., Clevenger, J. P., Holbrook, C. C., Isleib, T. G., & Ozias-Akins, P. (2022, July 18). JOURNAL OF PLANT REGISTRATIONS.
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: July 26, 2022
AbstractLate leaf spot (LLS) disease is an omnipresent peanut (Arachis hypogaea L.) foliar disease that causes significant yield loss. Integrating host resistance to reduce yield loss and management costs from this disease is highly desirable. In addition to disease resistance, market demand for high‐oleic peanut is on the rise due to its improved oxidative stability and health benefits. Previously, a recombinant inbred population from Florida‐07 × GP‐NC WS 16 (crossing number C1801) segregating for both LLS resistance and high oleic traits was used to perform genetic mapping for LLS resistance by quantitative trait loci (QTL)‐seq analysis. Three QTL regions on chromosomes B03, A05, and B05 were identified, and Kompetitive allele‐specific polymerase chain reaction markers flanking these regions were validated through a field test on genotypically selected sister lines. Two recombinant inbred lines, TifGP‐5 (Reg. no. GP‐246, PI 700330) and TifGP‐6 (Reg. no. GP‐247, PI 700331), with top levels of field resistance to LLS, were selected from this population for release. Both lines possess the resistance alleles of all the genetic markers. One line has high oleic acid content, and the other is normal oleic. Releasing these recombinant inbred lines packaged with molecular markers provides the peanut‐breeding community with genetic resources that can be utilized through marker‐assisted breeding.