Journal of Plant Registrations最新文献

Weldekidan, T., Manching, H., Choquette, N., de Leon, N., Flint-Garcia, S., Holland, J., Lauter, N., Murray, S. C., Xu, W., Goodman, M. M., & Wisser, R. J. (2022). Registration of tropical populations of maize selected in parallel for early flowering time across the United States. Journal of Plant Registrations, 16(1), 100–108. https://doi.org/10.1002/plr2.20181

In the Abstract and Core Ideas sections, the latitudinal range of the selection sites was incorrectly reported as 28 degrees (∼3100 km). The correct range, as indicated in Table 1, was 25 degrees (∼2800 km).

We apologize for this error.

‘XZ 14069’ (Reg. no. CV-297, PI 707001), marketed as “LOBO”, is a fine-textured zoysiagrass (Zoysia spp.) hybrid with excellent turfgrass quality and stress tolerance developed and released by the North Carolina Agricultural Research Service, Raleigh, NC. XZ 14069 was developed in 2014 through artificial hybridization between Zoysia japonica ‘Meyer’ and Z. japonica × matrella interspecific hybrid ‘Victoria’. After evaluation in nurseries (2014–2016) and roadside trials (2015–2018) in North Carolina for establishment rate and turfgrass quality under low inputs, XZ 14069 was advanced to i) Specialty Crop Research Initiative multi-environment trials (Citra and Jay, FL, Dallas, TX, Griffin and Tifton, GA, Jackson Springs, NC, Riverside, CA, and Stillwater, OK), ii) US Golf Association low input trials (West Lafayette, IN, Raleigh, NC, Tifton, GA, Stanfield, AZ, and Escondido, CA), and iii) National Turfgrass Evaluation Program (NTEP) low-input warm-season trials (Jay, and Citra, FL, Starkville, MS, Raleigh, NC, Las Cruces, NM, Stillwater, OK, College Station, TX, Logan, UT, and Virginia Beach, VA). Additionally, the line was evaluated in ancillary trials for sod quality (Jackson Springs, NC), salinity tolerance (Riverside, CA), shade tolerance (Citra, FL, and Stillwater, OK), and large patch resistance (Raleigh, NC). XZ 14069 exhibits fast establishment, can retain acceptable color and turfgrass quality under very low inputs, has resistance to large patch disease, and possesses drought, salinity, and shade tolerance. The cultivar is not limited to low-management areas such as golf course roughs or roadsides, as its superior turfgrass quality under regular management makes it suitable for higher-end uses like lawns and golf course fairways.

The two varietal groups of cultivated rice (Oryza sativa) are Indica and Japonica. Ancestral species O. rufipogon and O. nivara, collectively identified as the Oryza rufipogon species complex (ORSC), represent an underutilized resource for rice improvement. To make the ORSC genepool more accessible for breeding, three genotypically and phenotypically diverse ORSC accessions were selected as donors to develop chromosome segment substitution line (CSSL) libraries from crosses with IR64, an indica long grain grown in South and Southeast Asia, and Cybonnet, a U.S. tropical japonica long grain. The Cybonnet (Cyb) x OrA (O. rufipogon, NIAS W1944) CSSL Library (Reg. no. MP-11, NSL 551190 MAP) and IR64 x OrA (O. rufipogon, NIAS W1944) CSSL Library (Reg. no. MP-14, NSL 551377 MAP) used an ORSC donor from China, Cybonnet (Cyb) x OrB (O. nivara, IRGC106148) CSSL Library (Reg. no. MP-12, NSL 551297 MAP) and IR64 x OrB (O. nivara, IRGC106148) CSSL Library (Reg. no. MP-15, NSL 551378 MAP) an ORSC donor from Laos, and Cybonnet (Cyb) x OrC (O. rufipogon, IRGC105567) CSSL Library (Reg. no. MP-13, NSL 551376 MAP) and IR64 x OrC (O. rufipogon, IRGC105567) CSSL Library (Reg. no. MP-16, NSL 551379 MAP) an ORSC donor from Indonesia. The libraries were genotyped with an Infinium 7K array for rice. Previously, Cybonnet and 212 of the 216 Cybonnet CSSLs from the three libraries were evaluated in replicated field studies for six agronomic, six panicle architecture, and eight seed traits. Similarly, IR64 and 218 IR64 CSSLs from three libraries were grown in the greenhouse and characterized for six agronomic traits, panicle type and length, and four seed traits. Awn presence and culm color were noted for all CSSLs with three underlying genes identified. Of the 28 candidate genes identified by substitution mapping in the Cybonnet libraries, 11 were validated for the same traits phenotyped in the IR64 libraries. Phenotypes of CSSLs with ORSC introgressions that included the LK3, Waxy, ALK, and Pita genes validated the ORSC allele for these genes. These six CSSL libraries are a unique resource for researchers to discover novel alleles in the ORSC donors for rice improvement.

Multi-parent populations are capable to dissect complex quantitative traits by capturing multiallelic variation compared to biparental populations. MAGIC B-line (MBL) population is a multiparent advanced generation intercross (MAGIC) population developed at Clemson University using four diverse accessions of grain sorghum [Sorghum bicolor (L.) Moench] that are known to not restore fertility in A₁ cytoplasm. A set of 708 F₇ recombinant inbred lines (RILs) (Reg. no. MP-6, NSL 546930 MAP) were derived from the founders SC630 (PI 533937), SC605 (PI 534096), BTx642 (PI 656029), and BTxARG-1 (PI 561072) using repeated cycles of intercrossing. Each founder was carefully chosen to represent the four prominent sorghum races (kafir, guinea, durra, and caudatum) and capture important traits to segregate in the progeny, including stay-green, plant height, waxy endosperm, and plant/pericarp color. MBL and their founders were phenotypically characterized for plant/pericarp color and plant height, flowering, panicle type, grain yield, and several yield components. The entire population and their founders were genotyped using Diversity Array Technology sequencing (DArTseq) to generate 3751 quality-filtered single nucleotide polymorphisms. Genetic mapping of the MBL led to the discovery of novel marker-trait associations (MTAs) in addition to confirming several known genes. During elucidation of MTAs, there were novel genomic loci that demonstrated pleiotropic effects for agronomic, grain yield, and yield-related traits. With all founders are maintainers (B-lines) of cytoplasmic male sterility, progeny lines serve as genetic resources to improve B-line diversity, which can be limited due to a restricted number of non-restorers in Sorghum bicolor. This population can be further exploited to identify superior alleles to enrich seed parent gene pool.

Soft white winter (SWW) wheat (Triticum aestivum L.) is commonly grown in Washington. In many production areas of the state, winter annual weeds have become prevalent in the fields. With only a few herbicide choices available, growers have used the Clearfield Production System technology as a tool to control grassy weeds. The use of the group 2 (amino acid/acetolactate synthase inhibitors) Beyond herbicide (imazamox) tolerant wheat has allowed growers effective weed control options but has also led to herbicide residual building up in the soil profile. The objective of this research was to develop a two-gene, Beyond-tolerant SWW cultivar with improved resistance to the stripe rust pathogen (caused by Puccinia striiformis Westend. f. sp. tritici Erikss.), tolerance to snow mold, improved end-use quality, and can maintain high grain yield across production regions and years. ‘Piranha CL+’ (Reg. no. CV-1214, PI 699241) is a SWW wheat cultivar developed and released in March 2020 by the Agricultural Research Center of Washington State University. Piranha CL+ was tested under the experimental designations MAS11295-1-1-0-2 and WA8305 CL+, assigned through progressive generations of advancement. Piranha CL+ is a two-gene Beyond tolerant semi-dwarf cultivar broadly adapted across the wheat production regions of Washington. Piranha CL+ has improved high-temperature adult-plant resistance to the stripe rust pathogen over the most commonly grown Clearfield cultivars, is tolerant to snow mold, has intermediate plant height with mid-season maturity, and has high grain volume weight. This cultivar has maintained high grain yield across multiple years of testing in Washington. The end-use quality properties of Piranha CL+ meet expectations of both domestic and export market standards.

Soft white winter (SWW) wheat (Triticum aestivum L.) is the main market class produced in Washington State. With consistent production of winter wheat, winter annual weeds have been a constant concern of producers. For over 20 years, growers have used the Clearfield Production System to control grassy weeds in commercial production. The persistent use of group 2 (amino acid/acetolactate synthase inhibitors) Beyond (brand) herbicide (imazamox) tolerant wheat has resulted in many soils with residual herbicide contamination. The objective of this research was to develop a two-gene, Beyond-tolerant SWW cultivar that could be used in the Clearfield Production System. ‘Sockeye CL+’ (Reg. no. CV-1215, PI 699243) is a SWW wheat cultivar developed and released in March 2020 by the Agricultural Research Center of Washington State University. Sockeye CL+ was tested under the experimental designations MAS11295-1-1-0-4 and WA8306 CL+, assigned through progressive generations of advancement. This cultivar is a two-gene Beyond tolerant semi-dwarf cultivar broadly adapted across the wheat production regions of Washington. Sockeye CL+ has improved resistance to the stripe rust pathogen (caused by Puccinia striiformis Westend. f. sp. tritici Erikss.), tolerance to snow mold, improved end-use quality, and maintains high grain yield across production regions as compared to other commercially available herbicide tolerant cultivars. Sockeye CL+ has intermediate plant height with mid-season maturity and has high grain volume weight. This line has maintained high grain yield across multiple years and locations of testing in Washington. The end-use quality properties of Sockeye CL+ meet both domestic and export market standards.

We describe the development and release by the Florida Agricultural Experiment Station of ‘FAES 1307’ (Reg. no. CV-298, PI 707939) and ‘FAES 1319’ (Reg. no. CV-299, PI 707940) zoysiagrasses (Zoysia spp. Willd.). There is increasing worldwide interest in zoysiagrasses due to their lower fertility and maintenance requirements. These two new cultivars were released based on combinations of superior turfgrass quality and density, enhanced shade tolerance, improved spring greenup and fall color, and tolerance to large patch disease (caused by Rhizoctonia solani AG2-2 LP). Measurements of leaf length and width showed that the two new cultivars have a turfgrass texture intermediate between the coarser texture of ‘Empire’ and the very fine texture of ‘Geo’. Data from the 2013–2017 National Turfgrass Evaluation Program (NTEP) Zoysiagrass Trial showed that FAES 1319 was often ranked No. 1 or 2 out of 35 entries in the evaluations of turfgrass quality, density, and color, and usually significantly superior to the control cultivars Empire and ‘Meyer’. FAES 1307 was the top-rated entry for sod tensile strength. Foundation stock of each cultivar will be maintained by the UF-IFAS Agronomy Department and Florida Foundation Seed Producers.

Peanut (Arachis hypogaea L.) is a nutritious food source; however, it can cause serious allergic response among sensitized children and adults. Sixteen peanut proteins have been identified as allergens. Among those, vicilin protein Ara h 1 and conglutinin Ara h 2 are considered major peanut allergens due to the high frequency of recognition by IgE from allergic patients. Reducing the accumulation of Ara h 1 and Ara h 2 in peanut could potentially alleviate the severity of peanut allergic reactions. In order to identify allergen reduced lines, an ethyl methane sulfonate mutagenized peanut population was screened with gene specific primers by Targeting Induced Local Lesions in Genomes (TILLING) approach. TifGP-8 (Reg. no. GS-13, PI 701083) is a mutant line carrying a transitional C to T mutation in Ara h 1.02 which resulted in a premature stop codon and truncation in protein synthesis. TifGP-9 (Reg. no. GS-14, PI 701084) carries a G to A transition at the start codon of Ara h 2.02 resulting in a knockout of protein expression. Two cleaved amplified polymorphic sequence markers targeted at the mutation loci were developed to identify homozygous lines among progenies. Release of these allergen mutants will provide valuable genetic stocks for breeding reduced allergen peanuts.

The USDA-ARS developed and released the hulled spring grain oat (Avena sativa L.) cultivar ‘Idahoat’ (Reg. no. CV-390, PI 705582). This cultivar demonstrated good test weight, lodging resistance, and short plant height in addition to outperforming some current varieties tested in terms of grain yield. Idahoat yield averaged 7025 kg/ha, higher than all the lines and checks in 24 trials. Compared to the currently used varieties evaluated at Aberdeen area in 2021–2022, Idahoat averaged 6247 kg/ha, higher than ‘Ajay’, ‘CDC Dancer’, ‘Kame’, ‘Leggett’, ‘Maverick’, ‘Natty’, and ‘Newburg’ by 6%–39%. The good yield potential of Idahoat provides another choice for the local growers, the Pacific Northwest region, and possibly other regions that may benefit from the new release in terms of oat grain production.

‘R19C-1012’ (Reg. no. CV-564, PI 707837) is a high-yielding, conventional maturity group Mid-IV (Relative maturity 4.6) soybean [Glycine max (L.) Merr.] cultivar with improved flooding tolerance at V2–V4 vegetative growth stages. It was developed and released by the University of Arkansas System–Division of Agriculture Research & Extension Center in 2024. R19C-1012 has an indeterminate growth habit, purple flowers, gray pubescence, brown pods, and seed with an imperfect black hilum. From 2019 to 2023, R19C-1012 was evaluated across 40 irrigated environments, with an average grain yield of 4302 kg ha⁻¹, representing 93% and 99% relative yield of the Xtend and non-Xtend checks, respectively. Under flooding conditions at V2–V4 vegetative growth stages, R19C-1012 outperformed the checks with a relative yield advantage of +158%. In irrigated conditions, seed of R19C-1012 contains 397 g kg⁻¹ and 219.4 g kg⁻¹ of protein and oil content on a dry weight basis, respectively, and weigh 12.3 g 100 seeds⁻¹. It has resistance to brown stem rot (caused by Phialophora gregata) and stem canker (caused by Diaporthe phaseolorum var. aspalathi) and has tolerance to sulfonylurea herbicides. R19C-1012 provides Mid-South US growers with resilience and flexibility in their cropping systems by mitigating yield losses under flooding conditions, while also offering seed cost savings. This is particularly beneficial in flood-prone areas destined for crop rotation systems with rice (Oryza sativa). As a non-GMO soybean cultivar, it presents opportunities for high-value markets with premium prices. Furthermore, R19C-1012 is a valuable genetic resource for soybean breeding programs focused on improving flooding tolerance.