Journal of Plant Registrations最新文献

{"title":"Registration of the sorghum multi-parent advanced generation intercross (MAGIC) B-line population ‘MBL’: A source of seed parent genetic diversity","authors":"N. Kumar,&nbsp;J. L. Boatwright,&nbsp;Z. W. Brenton,&nbsp;A. Cox,&nbsp;K. E. McCalla,&nbsp;S. Kresovich,&nbsp;R. E. Boyles","doi":"10.1002/plr2.70013","DOIUrl":"https://doi.org/10.1002/plr2.70013","url":null,"abstract":"<p>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 [<i>Sorghum bicolor</i> (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 <i>Sorghum bicolor</i>. This population can be further exploited to identify superior alleles to enrich seed parent gene pool.</p>","PeriodicalId":16822,"journal":{"name":"Journal of Plant Registrations","volume":"19 2","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/plr2.70013","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144308990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Registration of ‘Piranha CL+’ soft white winter wheat","authors":"A. H. Carter,&nbsp;K. A. Balow,&nbsp;G. B. Shelton,&nbsp;A. B. Burke,&nbsp;K. E. Hagemeyer,&nbsp;A. Stowe,&nbsp;H. Wetzel,&nbsp;C. Neely,&nbsp;C. M. Steber,&nbsp;X. M. Chen,&nbsp;A. Kiszonas","doi":"10.1002/plr2.70010","DOIUrl":"https://doi.org/10.1002/plr2.70010","url":null,"abstract":"<p>Soft white winter (SWW) wheat (<i>Triticum aestivum</i> 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 <i>Puccinia striiformis</i> Westend. f. sp. <i>tritici</i> 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.</p>","PeriodicalId":16822,"journal":{"name":"Journal of Plant Registrations","volume":"19 2","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/plr2.70010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144292580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Registration of ‘Sockeye CL+’ soft white winter wheat","authors":"A. H. Carter,&nbsp;K. A. Balow,&nbsp;G. B. Shelton,&nbsp;A. B. Burke,&nbsp;K. E. Hagemeyer,&nbsp;A. Stowe,&nbsp;H. Wetzel,&nbsp;C. Neely,&nbsp;C. M. Steber,&nbsp;X. M. Chen,&nbsp;A. Kiszonas","doi":"10.1002/plr2.70009","DOIUrl":"https://doi.org/10.1002/plr2.70009","url":null,"abstract":"<p>Soft white winter (SWW) wheat (<i>Triticum aestivum</i> 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 <i>Puccinia striiformis</i> Westend. f. sp. <i>tritici</i> 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.</p>","PeriodicalId":16822,"journal":{"name":"Journal of Plant Registrations","volume":"19 2","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/plr2.70009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144273426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Registration of ‘FAES 1307’ and ‘FAES 1319’ zoysiagrasses","authors":"Kevin Kenworthy,&nbsp;Kenneth Quesenberry,&nbsp;J. Bryan Unruh,&nbsp;Philip Harmon,&nbsp;Norma Flor,&nbsp;Esteban Rios,&nbsp;Paul Reith,&nbsp;William Crow,&nbsp;Jing Zhang,&nbsp;Brian Schwartz,&nbsp;Susana R. Milla-Lewis,&nbsp;Grady L. Miller,&nbsp;Paul Raymer,&nbsp;Ambika Chandra,&nbsp;Yanqi Wu,&nbsp;Dennis Martin","doi":"10.1002/plr2.20428","DOIUrl":"https://doi.org/10.1002/plr2.20428","url":null,"abstract":"<p>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 (<i>Zoysia</i> 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 <i>Rhizoctonia solani</i> 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.</p>","PeriodicalId":16822,"journal":{"name":"Journal of Plant Registrations","volume":"19 2","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/plr2.20428","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144244558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Registration of two peanut mutants TifGP-8 and TifGP-9 with reduced expression of peanut allergens Ara h 1.02 and Ara h 2.02","authors":"Y. Chu,&nbsp;J. E. Knoll,&nbsp;Y. P. Guo,&nbsp;C. C. Holbrook,&nbsp;P. Ozias-Akins","doi":"10.1002/plr2.70012","DOIUrl":"https://doi.org/10.1002/plr2.70012","url":null,"abstract":"<p>Peanut (<i>Arachis hypogaea</i> 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 <i>Ara h 1.02</i> 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 <i>Ara h 2.02</i> 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.</p>","PeriodicalId":16822,"journal":{"name":"Journal of Plant Registrations","volume":"19 2","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/plr2.70012","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144213955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Registration of oat cultivar ‘Idahoat’","authors":"Gongshe Hu,&nbsp;Kathy Satterfield,&nbsp;Chris Evans,&nbsp;Sherry Ellberg","doi":"10.1002/plr2.70001","DOIUrl":"https://doi.org/10.1002/plr2.70001","url":null,"abstract":"<p>The USDA-ARS developed and released the hulled spring grain oat (<i>Avena sativa</i> 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.</p>","PeriodicalId":16822,"journal":{"name":"Journal of Plant Registrations","volume":"19 2","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143896815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Registration of ‘R19C-1012’: A high-yielding soybean cultivar with improved flooding tolerance at early vegetative stages","authors":"C. Canella Vieira,&nbsp;R. G. Marmo,&nbsp;C. Wu,&nbsp;L. Florez-Palacios,&nbsp;A. Acuña,&nbsp;D. Harrison,&nbsp;D. Rogers,&nbsp;L. Mozzoni,&nbsp;T. Roberts,&nbsp;J. F. Carlin,&nbsp;T. R. Faske,&nbsp;F. Lin,&nbsp;G. Shannon,&nbsp;H. T. Nguyen","doi":"10.1002/plr2.70008","DOIUrl":"https://doi.org/10.1002/plr2.70008","url":null,"abstract":"<p>‘R19C-1012’ (Reg. no. CV-564, PI 707837) is a high-yielding, conventional maturity group Mid-IV (Relative maturity 4.6) soybean [<i>Glycine max</i> (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 &amp; 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 <i>Phialophora gregata</i>) and stem canker (caused by <i>Diaporthe phaseolorum var. aspalathi</i>) 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 (<i>Oryza sativa</i>). 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.</p>","PeriodicalId":16822,"journal":{"name":"Journal of Plant Registrations","volume":"19 2","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/plr2.70008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143880032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Registration of ‘Tamcot 421’ cultivar of cotton","authors":"Steve Hague,&nbsp;C. Wayne Smith,&nbsp;Lorin Harvey,&nbsp;Don Jones","doi":"10.1002/plr2.20184","DOIUrl":"https://doi.org/10.1002/plr2.20184","url":null,"abstract":"<p>‘Tamcot 421’ (Reg. no. CV-149, PI 706649) is a Sea Island (<i>Gossypium barbadense</i> L.)/upland (<i>G. hirsutum</i> L.) cultivar developed by the Cotton Improvement Laboratory, Department of Soil and Crop Sciences and released in 2017 by Texas A&amp;M AgriLife Research. This interspecific inbred line was the result of hybridization of a complex early generation upland hybrid and a Sea Island breeding line (‘Gaddis’/‘Puerto Rican 556’). Tamcot 421 demonstrated fiber traits that were comparable to commercial cultivars as measured by high volume instrumentation. Lint yields were stable and generally either not different or higher than commercial cultivars in multiple replicated trials across years and locations. Plant morphology and fruiting habit were typical of upland cotton. Development and release of this cultivar represents an unusual combination of high-yield potential and good fiber quality in a line with a 50/50 pedigree contribution of Sea Island and upland parents.</p>","PeriodicalId":16822,"journal":{"name":"Journal of Plant Registrations","volume":"19 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Registration of ‘CPCL 00-6131’ sugarcane cultivar for Guatemala","authors":"Héctor Orozco,&nbsp;Aliya Momotaz,&nbsp;José Quemé,&nbsp;Salomón García,&nbsp;Luis Molina,&nbsp;Wayne Davidson,&nbsp;Chris LaBorde,&nbsp;Mike Irey,&nbsp;Hardev Sandhu,&nbsp;Jack Comstock,&nbsp;Duli Zhao","doi":"10.1002/plr2.70003","DOIUrl":"https://doi.org/10.1002/plr2.70003","url":null,"abstract":"<p>‘CPCL 00-6131’ (Reg. no. CV-220, PI 705850) is a sugarcane hybrid cultivar (a complex hybrid of <i>Saccharum</i> spp.) that was developed in two countries (United States and Guatemala). In the United States, the crossing and seedling selection were done by United States Sugar Corporation (USSC); advanced trials of the selected clones were conducted by the USDA-ARS Canal Point (CP) sugarcane breeding program. In Guatemala, the further introduction, advanced field tests and final release were carried out by the Guatemalan Sugarcane Research and breeding program (CENGICAÑA). CPCL 00-6131 was not released in Florida because of its susceptibility to brown rust (caused by <i>Puccinia melanocephala</i> H. &amp; P. Sydow) and the low yield of commercial recoverable sucrose than the reference cultivar. After testing in Guatemala, CPCL 00-6131 was released in 2019 because of its high cane and sucrose yield both at plant cane and ratoons crops under the Guatemala growth environment. CPCL 00-6131 ranked first, being significantly greater than the reference cultivar ‘CP 72-2086’ in the second ratoon and the combined crops. It has acceptable resistance to wilt or dry stalks caused mainly by <i>Cephalosporium sacchari</i> (Bult.) =<i> Fusarium sacchari</i> (Gams.), smut (caused by <i>Ustilago scitaminea</i> Sydow &amp; P. Sydow), leaf scald [caused by <i>Xanthomonas albilineans</i> (Ashby) Dowson], brown rust and orange rust (<i>Puccinia kuehnii</i> E.J. Butler) and <i>Sugarcane mosaic virus</i> strain E (the causal agent of mosaic).</p>","PeriodicalId":16822,"journal":{"name":"Journal of Plant Registrations","volume":"19 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143787109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Registration of six lettuce breeding lines with resistance to Fusarium wilt race 1","authors":"Kelley L. Richardson,&nbsp;James D. McCreight,&nbsp;Santosh Nayak","doi":"10.1002/plr2.20423","DOIUrl":"https://doi.org/10.1002/plr2.20423","url":null,"abstract":"<p>Lettuce (<i>Lactuca sativa</i> L.) is a billion-dollar industry in the United States, with California and Arizona producing over 90%. Fusarium wilt (FW), caused by <i>Fusarium oxysporum</i> f. sp. <i>lactucae</i> (Fol) race 1, is a major disease of lettuce worldwide. Genetic resistance is the most sustainable practice for FW control. With the objective of combatting this challenge, we report the registration of six breeding lines: 15631 (Reg. no. GP-12, PI 691904), 15632 (Reg. no. GP-13, PI 691905), 15633 (Reg. no. GP-14, PI 691906), 15634 (Reg. no. GP-15, PI 691907), 15669 (Reg. no. GP-16, PI 691908), and 15670 (Reg. no. GP-17, PI 691909) with resistance to FW race 1. These were developed and released by the USDA-ARS from a cross between ‘King Louie’ (romaine type; resistant to FW race 1) and ‘Autumn Gold’ (crisphead type; susceptible to FW race 1). They were selected using a pedigree selection breeding method through greenhouse and field evaluations. Disease severity was assessed using standardized visual rating scales, for example, 1, no disease to 4, dead plant, with the releases exhibiting significantly lower FW severity and incidence compared with susceptible checks. These breeding lines have shown stable and uniform resistance to FW race 1 in multiple trials and offer an essential genetic resource for lettuce breeders and seed companies. Preliminary greenhouse results suggest they are also resistant to novel pathogenic variants that were recently detected in California. These lines are available for research and to incorporate FW race 1 resistance into elite lines, contributing to sustainable lettuce production in affected regions.</p>","PeriodicalId":16822,"journal":{"name":"Journal of Plant Registrations","volume":"19 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/plr2.20423","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143787242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}