Registration of the sorghum carbon–partitioning nested association mapping (CP–NAM) population

Journal Article · Thu Jun 16 00:00:00 UTC 2022 · Journal of Plant Registrations

DOI: https://doi.org/10.1002/plr2.20229 · OSTI ID:1976370

Kumar, Neeraj  ^[1]; Brenton, Zachary ^[2]; Myers, Matthew T. ^[3]; Boyles, Richard E.  ^[3]; Sapkota, Sirjan  ^[3]; Boatwright, J. L. ^[3]; Cox, W. A. ^[3]; Jordan, Kathleen E.  ^[3]; Kresovich, Stephen ^[4]

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1. Clemson Univ., SC (United States); OSTI
2. Clemson Univ., SC (United States); Carolina Seed Systems, Darlington, SC (United States)
3. Clemson Univ., SC (United States)
4. Clemson Univ., SC (United States); Cornell Univ., Ithaca, NY (United States)

The sorghum [Sorghum bicolor (L.) Moench] carbon-partitioning nested association mapping (CP_NAM) (Reg. no. MP-4, NSL 542189 MAP) population was developed at Clemson University, SC, using 11 diverse, male founder accessions, each crossed with a recurrent female parent ‘Grassl’. The male parents represent all five major botanical races and the four major agronomic types: cellulosic (5), sweet (3), grain (2) and forage (1). A set of 11 recombinant inbred line (RIL) families CP_NAM01 to CP_NAM011 were maintained, which consisted of 2,484 (F₆) individuals. Each RIL family contained a minimum of 193 individuals (CP_NAM01) and a maximum of 287 individuals (CP_NAM06). For the development of this population, the founder lines were judiciously selected from the sorghum Bioenergy Association Panel based on carbon-partitioning phenotypes that make this population an ideal genetic resource for dissecting a wide range of agronomic and compositional traits for basic and applied research. The founder accessions of the CP_NAM were phenotypically characterized for various traits, including agronomic, biomass and related components, and additional compositional components. Each of the 11 F₆ RIL families of the CP_NAM were genotyped using genotyping-by-sequencing analysis, and 144,087 single nucleotide polymorphisms were generated for each individual. Genotypic information along with phenotypic data were used for the characterization of this population and to explore the range of phenotypes that permits the understanding of carbon-partitioning dynamics. This population is a unique resource for researchers to study a wide range of contrasting carbon-partitioning characteristics in sorghum to understand the genetic architecture underlying whole-plant carbon partitioning and allocation.

• Research Organization: Clemson Univ., SC (United States)
• Sponsoring Organization: USDA; USDOE Advanced Research Projects Agency - Energy (ARPA-E)
• Grant/Contract Number: AR0001134
• OSTI ID: 1976370
• Journal Information: Journal of Plant Registrations, Journal Name: Journal of Plant Registrations Journal Issue: 3 Vol. 16; ISSN 1936-5209
• Publisher: WileyCopyright Statement
• Country of Publication: United States
• Language: English