Journal of Plant Registrations最新文献

{"title":"Registration of ‘CP 14-1933’ sugarcane cultivar for organic soils in Florida","authors":"Sushma G. Sood,&nbsp;Hardev S. Sandhu,&nbsp;R. Wayne Davidson,&nbsp;Aliya Momotaz,&nbsp;Md S. Islam,&nbsp;Miguel Baltazar,&nbsp;Orlando Coto Arbelo","doi":"10.1002/plr2.70042","DOIUrl":"https://doi.org/10.1002/plr2.70042","url":null,"abstract":"<p>‘CP 14-1933’ (Reg. No. CV-224, PI 708609) was released for Florida in July 2024 for commercial cultivation on organic soils. This cultivar was developed through cooperative research conducted by USDA-ARS, the University of Florida, and the Florida Sugar Cane League. CP 14-1933 originated from a cross (CPX11-1041) between a female parent ('CP 07-2460') and a male parent (‘CP 06-2335’). CP 14-1933 is resistant to orange rust, leaf scald, <i>Sugarcane mosaic virus</i> strain E, and brown rust, and it harbors the <i>Bru</i>1 locus associated with brown rust resistance. It is tolerant to smut and ratoon stunt disease. CP 14-1933 is significantly (<i>P</i> &lt; .05) less tolerant to freezing temperatures than the reference cultivars. The average fiber content of CP 14-1933 was 122.0 kg Mg⁻¹, lower than that of the reference cultivars. Yield data from 3 harvest years (plant cane, first ratoon, and second ratoon) across five locations in Stage 4 on organic soils indicated that the cane and sugar yield of CP 14-1933 were comparable to those of the reference cultivars ‘CP 00-1101’ and ‘CP 96-1252’. However, the commercially recoverable sugar (CRS) of CP 14-1933 in all the crop years was significantly higher than the CRS of CP 96-1252. The economic index (EI) for the second ratoon crop of CP 14-1933 was significantly higher (<i>P</i> &lt; .05) by 28% compared with the EI of CP 96-1252. CP 14-1933 has the potential to positively impact sugarcane (<i>Saccharum</i> spp.) production in Florida, as it exhibits yield and disease resistance traits comparable to those of the widely grown cultivar CP 96-1252.</p>","PeriodicalId":16822,"journal":{"name":"Journal of Plant Registrations","volume":"20 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2026-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147666194","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 ‘S18PR-190 HOLL’: A soybean cultivar with high oleic and low linolenic acid seed oil and multiple disease resistance","authors":"Harmeet Singh-Bakala,&nbsp;Francia Ravelombola,&nbsp;Cheryl Adeva,&nbsp;Destiny Hunt,&nbsp;Maiara Oliveira,&nbsp;Jessica Argenta,&nbsp;Caio Canella Vieira,&nbsp;Feng Lin,&nbsp;Grover Shannon","doi":"10.1002/plr2.70025","DOIUrl":"https://doi.org/10.1002/plr2.70025","url":null,"abstract":"<p>There is an interest in soybean oil enriched with oleic acid and reduced linolenic acid to improve oil functionality. The soybean breeding program at the University of Missouri-Fisher Delta Research, Extension, and Education Center has developed and released soybean [<i>Glycine max</i><b> (</b>L.) Merr<b>.] ‘</b>S18PR-190 HOLL’ (Reg. no. CV-567, PI 708613). It is a conventional non-genetically modified (non-GM) maturity group IV (relative maturity 4.8) soybean cultivar averaging 80.2% oleic acid and 2.3% linolenic acid. S18PR-190 HOLL was evaluated in 38 environments across six states from 2019 to 2022. It yielded 99% of the check means across 25 environments without off-target exposure to the herbicide dicamba. However, it averaged 16% lower yield versus the overall check means at 13 locations with significant off-target dicamba injury. S18PR-190 HOLL is resistant to multiple diseases, including soybean cyst nematode (SCN) (<i>Heterodera glycines</i> Ichinohe) races 2 (HG type 1.2.5.7), 3 (HG type 0) and 5 (HG type 2.5.7), and stem canker (SC) (<i>Diaporthe aspalathi</i> Jansen, Castlebury&amp; Crous). Because of its high-oleic acid, low linolenic acid content, disease resistance, and competitive yield potential, S18PR-190 HOLL can be an excellent soybean cultivar for farmers to potentially maximize profits by receiving a premium price for its non-GM seed oil fatty acid profile.</p>","PeriodicalId":16822,"journal":{"name":"Journal of Plant Registrations","volume":"20 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2026-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://acsess.onlinelibrary.wiley.com/doi/epdf/10.1002/plr2.70025","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147566356","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 ‘R18C-13665’: A high-yielding conventional soybean cultivar","authors":"C. Canella Vieira,&nbsp;L. Florez-Palacios,&nbsp;R. G. Marmo,&nbsp;C. Wu,&nbsp;A. Acuna,&nbsp;D. Harrison,&nbsp;D. Rogers,&nbsp;J. F. Carlin","doi":"10.1002/plr2.70047","DOIUrl":"https://doi.org/10.1002/plr2.70047","url":null,"abstract":"<p>‘R18C-13665’ (Reg. no. CV-568, PI 708976) is a high-yielding, conventional soybean [<i>Glycine max</i> (L.) Merr.] cultivar developed and released by the University of Arkansas System Division of Agriculture Research &amp; Extension Center in 2024. It is a maturity group (MG) IV late with a relative maturity of 4.8. The plants feature an indeterminate growth habit, white flowers, light tawny pubescence, brown pod walls, and a black hilum. From 2019 to 2024, R18C-13665 was evaluated across 55 environments in seven Mid-Southern states, achieving an average grain yield of 4389 kg ha⁻¹, which corresponds to 100% of the non-Xtend checks and 94% of the Xtend checks. Its seed weighs an average of 14.5 g per 100 seeds and contain 387 g protein kg⁻¹ and 216 g oil kg⁻¹ on a dry-weight basis. R18C-13665 is resistant to stem canker (caused by <i>Diaporthe phaseolorum</i> var. <i>aspalathi</i>) and frogeye leaf spot (caused by <i>Cercospora sojina</i> Hara). R18C-13665 addresses the limited availability of high-yielding, indeterminate MG 4 public cultivars in Arkansas and the Mid-South—an ideotype in high demand due to the region's shift toward earlier planting. As a public release, R18C-13665 provides growers with a cost-effective, nonproprietary option that allows seed saving and access to niche or premium markets. Beyond its agronomic and economic value, R18C-13665 represents an important genetic resource for breeding programs aiming to strengthen the indeterminate MG 4 class and broaden the genetic base of Mid-South soybean production.</p>","PeriodicalId":16822,"journal":{"name":"Journal of Plant Registrations","volume":"20 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2026-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://acsess.onlinelibrary.wiley.com/doi/epdf/10.1002/plr2.70047","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147566355","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 ‘Driftless’ meadow fescue","authors":"Michael D. Casler,&nbsp;Devesh Singh,&nbsp;Robin Lamp,&nbsp;Prabin Bajgain","doi":"10.1002/plr2.70049","DOIUrl":"https://doi.org/10.1002/plr2.70049","url":null,"abstract":"<p>‘Driftless’ (Reg. no. CV-103, PI 700120) meadow fescue [<i>Lolium pratense</i> (Huds.) Darbysh.; syn. <i>Festuca pratensis</i> Huds.; syn.] is a synthetic cultivar obtained from seven parents. It has been selected for high biomass, digestibility, and seed yield in several regions of the northern United States. Driftless’ forage yield is ∼5% lower than that of ‘Pradel’, a commercially available meadow fescue cultivar of European origin. Its neutral detergent fiber (NDF) is consistently lower and its NDF digestibility higher relative to other existing meadow fescue cultivars. As the first meadow fescue cultivar developed from germplasm locally adapted within the United States and owing to its superior forage quality, Driftless is expected to better support the needs of U.S. livestock producers than imported cultivars. Driftless is adapted to USDA plant hardiness zones 3–6. It was released by the USDA-ARS in 2020, and its Plant Variety Protection was approved in 2023.</p>","PeriodicalId":16822,"journal":{"name":"Journal of Plant Registrations","volume":"20 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2026-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://acsess.onlinelibrary.wiley.com/doi/epdf/10.1002/plr2.70049","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147566354","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 ‘TifTB’ peanut","authors":"C. Corley Holbrook,&nbsp;Tim B. Brenneman,&nbsp;Peggy Ozias-Akins,&nbsp;Ye Chu,&nbsp;Albert K. Culbreath","doi":"10.1002/plr2.70043","DOIUrl":"https://doi.org/10.1002/plr2.70043","url":null,"abstract":"<p>‘TifTB’ (Reg. no. CV-161, PI 708603) is a runner-type peanut (<i>Arachis hypogaea</i> L. subsp. <i>hypogaea</i> var. <i>hypogaea</i>) cultivar released by the USDA-ARS and the Georgia Agricultural Experiment Station in 2025. TifTB was developed at the University of Georgia Coastal Plain Experiment Station, Tifton, GA. TifTB is a high oleic acid, runner market-type cultivar that also has resistance to white mold (<i>Athelia rolfsii</i>) and to tomato spotted wilt caused by <i>Tomato spotted wilt tospovirus</i> (TSWV). The original population was developed by crossing ‘Georgia 07W’ × MAS 7. MAS 7 is a high oleic, nematode-susceptible breeding line selected from the cross of ‘Florida-07’ × (‘Tifguard’ × Florida-07). Marker-assisted selection was used in the development of TifTB to select for the high oleic to linoleic ratio characteristic. TifTB exhibited a higher level of resistance to white mold compared with ‘Georgia-12Y’, the standard resistant check. Farmers who want to grow a high oleic, runner-type peanut cultivar with resistance to white mold and TSWV also need the highest yield and grade for maximum economic return. When tested in fields without severe white mold pressure, TifTB exhibited yields that were at least similar to those of other currently grown peanut cultivars. When tested in fields with severe white mold pressure, TifTB exhibited a yield at least equivalent to that of Georgia-12Y and significantly higher than that of susceptible cultivars. TifTB has consistently exhibited high grades.</p>","PeriodicalId":16822,"journal":{"name":"Journal of Plant Registrations","volume":"20 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2026-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147566353","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 ‘GoWheat 9216H’ wheat","authors":"Amir M. H. Ibrahim,&nbsp;Jackie C. Rudd,&nbsp;Ellen Melson,&nbsp;Geraldine Opeña,&nbsp;Russell Sutton,&nbsp;Bryan Simoneaux,&nbsp;Ravindra N. Devkota,&nbsp;Jason A. Baker,&nbsp;Shannon Baker,&nbsp;Clark B. Neely,&nbsp;Joseph M. Awika,&nbsp;Audrey L. Girard,&nbsp;Shuyu Liu,&nbsp;Qingwu Xue,&nbsp;Jourdan Bell,&nbsp;Bradford W. Seabourn,&nbsp;Robert L. Bowden,&nbsp;Yue Jin,&nbsp;James Kolmer,&nbsp;Ming-Shun Chen,&nbsp;Xianming Chen,&nbsp;Jeffrey D. Boehm Jr.,&nbsp;Guihua Bai,&nbsp;Robert A. Graybosch","doi":"10.1002/plr2.70044","DOIUrl":"https://doi.org/10.1002/plr2.70044","url":null,"abstract":"<p>‘GoWheat 9216H’ (Reg. no. CV-1224, PI 708101) is a hard red winter wheat (<i>Triticum aestivum</i> L.) that was bred and released by the Texas A&amp;M AgriLife Research Wheat Improvement Program in 2021. GoWheat 9216H is an F₄-derived line advanced from the cross ‘X09A440S’ ( = TX07A001482/TAM 401)/‘Duster’ that was made in Bushland, TX, in 2010. GoWheat 9216H is a medium-maturing, semi-dwarf, awned and white glumed wheat that has demonstrated high grain yield potential across many Texas environments in both irrigated and dryland conditions. GoWheat 9216H is resistant to stem rust (Sr; <i>Puccinia graminis</i> Pers.:Pers f. sp. <i>tritici</i> Erikss. &amp; E. Henn.), leaf rust (Lr; <i>P. triticina</i> Erikss.), and stripe rust (Yr; <i>P. striiformis</i> Westend. f. sp. <i>tritici</i> Erikss.), with marker data suggesting it carries <i>Lr34</i>, <i>Lr37</i>, <i>Lr68, Yr17</i>, <i>Yr18</i>, <i>YrM1225</i>, and <i>Sr38</i>. It is moderately resistant to Hessian fly [<i>Mayetiola destructor</i> (Say)]. This cultivar shows good baking and milling quality traits equivalent to high-quality checks and further features large seeds and high grain volume weight. Its height is similar to that of recently released Texas A&amp;M cultivars, but it has a later maturity date. GoWheat 9216H is poised to perform well under both irrigated and dryland conditions in the Texas Rolling Plains, South and Central Texas, and the Blacklands, as well as in other regions across the state with similar adaptation zones.</p>","PeriodicalId":16822,"journal":{"name":"Journal of Plant Registrations","volume":"20 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2026-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147566100","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 ‘TN21-4659’, a conventional soybean germplasm with resistance to multiple soybean cyst nematode HgTypes and high yield potential","authors":"Chris Wyman,&nbsp;Tarek Hewezi,&nbsp;Alanna Eveland,&nbsp;Vince Pantalone","doi":"10.1002/plr2.70039","DOIUrl":"https://doi.org/10.1002/plr2.70039","url":null,"abstract":"<p>‘TN21-4659’ (Reg. no. CV-569, PI 709002) is a soybean [<i>Glycine max</i> (L.) Merr.] germplasm with exceptional resistance to HgTypes 1.2.5.7 and 2.5.7 soybean cyst nematode (SCN; <i>Heterodera Glycines</i> Ichinohe). The line is a conventional, nongenetically modified, early-maturity V, relative maturity 5.1 soybean. TN21-4659 was one of 263 selected F₄ plants derived from the hybridization of ‘DA10X30-09F’ and ‘TN15-4011’. From 2021 to 2024, TN21-4659 was evaluated in four internal variety trials conducted at three locations across Tennessee, as well as in two USDA variety trials at 8 and 14 locations, respectively. In 2023, TN21-4659 was entered into the USDA Southern Uniform Preliminary Group IV Late Test, a replicated field trial conducted at eight locations across the southern United States, where it ranked fifth in yield among the 27 submitted lines. In the 2024 USDA Southern Uniform Group V Test, the yield of TN21-4659 was not significantly different from that of the commercial checks. TN21-4659 has purple flowers, tawny pubescence, and a smooth yellow seed coat. The seed weight is ∼12.3 g 100 seeds⁻¹. Resistance to SCN HgType 1.2.5.7 is rare in commercially available soybean cultivars. It is difficult to breed against HgType 1.2.5.7 due to its virulence to most commercial cultivars. Overall, TN21-4659 provides exceptional yield potential with resistance to multiple HgTypes of SCN, making it an excellent germplasm for breeding programs.</p>","PeriodicalId":16822,"journal":{"name":"Journal of Plant Registrations","volume":"20 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2026-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147566291","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":"‘CP 12–2035′, A new sugarcane cultivar for Florida sand soils","authors":"Md S. Islam,&nbsp;Orlando Coto Arbelo,&nbsp;Aliya Momotaz,&nbsp;Hardev S. Sandhu,&nbsp;R. Wayne Davidson,&nbsp;Miguel Baltazar,&nbsp;Sushma Sood","doi":"10.1002/plr2.70032","DOIUrl":"10.1002/plr2.70032","url":null,"abstract":"<p>‘CP 12–2035′ (Reg. No. CV-223, PI 706731) sugarcane cultivar (a complex hybrid of <i>Saccharum</i> spp.) was released to growers in July 2024 for cultivating on sand soils in Florida after a decade-long advancement through cooperative research conducted by the USDA ARS, the Florida Sugarcane League Inc., and the University of Florida. It originated from a poly-cross made at Canal Point (CP). The Florida Sugarcane Variety Committee recommended release of CP 12–2035 due to its high sugar yields (20.90 Mg ha⁻¹), commercial recoverable sucrose content (133.4 kg Mg⁻¹) on sand soils, and acceptable disease resistance. CP 12-2035 has demonstrated resistance to brown rust, orange rust, and moderate resistance to mosaic, ratoon stunt, and smut, moderate susceptibility to leaf scald. In late-stage yield trials, the sugar yields of CP 12—2035 were 23.4, 31.4, and 42.9% higher than those of the check varieties ‘CP 03-1912′, ‘CP 96-1252′, and ‘CPCL 97-2730′, respectively. CP 12—2035 also produced heavier stalks than all three tested reference checks. It was more tolerant to freeze stress over reference cultivars. With its demonstrated resistance to disease and elevated sugar production, CP 12—2035 is expected to positively influence both sugarcane production and crop sustainability in Florida.</p>","PeriodicalId":16822,"journal":{"name":"Journal of Plant Registrations","volume":"20 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2026-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147568303","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 two blast-resistant medium-grain rice germplasm lines, USDA-ARS-GKZ4 and USDA-ARS-GKZ61, with improved quality and grain weight","authors":"Yulin Jia,&nbsp;Aaron K. Jackson,&nbsp;Heather Box,&nbsp;Melissa H. Jia,&nbsp;Jace Everette,&nbsp;Brennan Smith","doi":"10.1002/plr2.70041","DOIUrl":"10.1002/plr2.70041","url":null,"abstract":"<p>Blast disease, caused by the fungus <i>Magnaporthe oryzae</i> B.C. Couch, is one of the most lethal diseases of rice (<i>Oryza sativa</i> L.) and is managed using major blast resistance genes with overlapping resistance spectra. USDA-ARS-GKZ4 (Reg. no. GP-154, PI 708939) and USDA-ARS-GKZ61 (Reg. no. GP-155, PI 708940) are blast-resistant rice germplasm lines developed by the USDA-ARS Dale Bumpers National Rice Research Center, Stuttgart, AR. They were selected from the USDA-ARS K/Z mapping population, which consisted of 353 F_10–11 recombinant inbred lines of the tropical <i>japonica</i>–<i>indica</i> cross, ‘Kaybonnet’ <i>lpa</i>1-1 × ‘Zhe 733’. These lines were characterized in Arkansas rice fields from 2017 to 2022. Blast resistance was determined under both greenhouse and field conditions. Under greenhouse conditions, USDA-ARS-GKZ4 and USDA-ARS-GKZ61 were resistant to all common U.S. blast races: IA45, IB1, IB49, IB54, IC17, IE1, IG1, IH1, and IE1k. Under naturally occurring field conditions in Crowley, LA, and Lajas, PR, they were resistant to both leaf and panicle blast infections. USDA-ARS-GKZ4 has <i>Pi42(t)</i> and <i>Pi43(t)</i> but lacks <i>Pi-ta</i> and <i>Ptr</i>. USDA-ARS-GKZ61 carries all four of these broad-spectrum major blast resistance genes. USDA-ARS-GKZ4 has a yield of 8158 kg ha⁻¹, and USDA-ARS-GKZ61 has a lower yield of 6338 kg ha⁻¹ but contains a unique array of major blast resistance genes. USDA-ARS-GKZ4 has low phytic acid content, which may provide nutritional benefits for humans and animals. Both USDA-ARS-GKZ germplasm lines confer a significant reduction in chalkiness relative to the ‘Zhe 733’ parent of ≥58.1%, while maintaining a thousand-kernel weight of ≥13.7% compared with the ‘Kaybonnet’ <i>lpa</i>1-1 parent. The USDA-ARS-GKZ lines are useful germplasm for improving disease resistance in breeding programs, and USDA-ARS-GKZ4 may also be of interest for specialty rice production due to its low phytic acid content and acceptable grain and agronomic qualities.</p>","PeriodicalId":16822,"journal":{"name":"Journal of Plant Registrations","volume":"20 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2026-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147568306","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 four soybean lines in a common genetic background with contrasting leaf shape","authors":"Bishal G. Tamang,&nbsp;Brian W. Diers,&nbsp;Elizabeth A. Ainsworth","doi":"10.1002/plr2.70045","DOIUrl":"10.1002/plr2.70045","url":null,"abstract":"<p>Four soybean [<i>Glycine max</i> (L.) Merr.] lines, two with lanceolate (narrow) leaf shape (LD11-NL-1 [Reg. no. GP-549, PI 708601], LD11-NL-2 [Reg. no GP-550, PI 708602]) and two with ovate (broad) leaf shape (LD11-BL-1 [Reg. no GP-547, PI 708599], LD11-BL-2 [Reg. no GP-548, PI 708600]) were developed at the University of Illinois Urbana-Champaign and released to investigate the effects of leaf shape on soybean physiology and productivity. These lines were developed through three generations of backcrossing (BC₃) the <i>ln</i> allele for narrow leaf shape from the narrow-leaved donor parents PI 612713A and PI 547745 into the elite broad-leaved cultivar ‘LD11-2170’, followed by selfing to generate BC₃F₂-derived F₄ lines. Marker-assisted selection using <i>JAG1</i> gene-specific Kompetitive Allele Specific polymerase chain reaction markers was conducted during backcrossing and in the BC₃F₂ generation. The four selected near-isogenic lines share ∼95% genetic similarity with the recurrent parent LD11-2170, and differ principally at the <i>GmJAG1</i> locus, enabling precise study of the effects of leaf shape on soybean development, growth, and productivity. Leaf Area Index (LAI) in the narrow-leaved lines was 14%–16% lower on average across growth environments compared with broad-leaf lines. There were modest differences in the time to canopy closure, but no yield advantage was observed for narrow-leaf lines across environments and row spacings. Notably, narrow-leaved lines produced significantly more 4-seeded pods (34.2% vs. 1.8%). These germplasm resources will facilitate investigation into the physiological mechanisms underlying canopy architecture optimization and enable breeding for improved radiation-use efficiency in soybean, helping address the excessive LAI often seen in modern varieties.</p>","PeriodicalId":16822,"journal":{"name":"Journal of Plant Registrations","volume":"20 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2026-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://acsess.onlinelibrary.wiley.com/doi/epdf/10.1002/plr2.70045","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147568305","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}