Breeding Science最新文献_第3页

Whole-genome resequencing of Japanese large-sized tomato cultivars provides insights into the history of modern breeding. 日本大型番茄栽培品种的全基因组重测序为现代育种史提供了启示。

IF 2 4区农林科学

Breeding Science Pub Date : 2024-09-01 Epub Date: 2024-08-23 DOI: 10.1270/jsbbs.24004

Eiji Yamamoto, Hiroshi Matsunaga, Akio Ohyama, Tsukasa Nunome, Hirotaka Yamaguchi, Koji Miyatake, Kenta Shirasawa, Sachiko Isobe

{"title":"Whole-genome resequencing of Japanese large-sized tomato cultivars provides insights into the history of modern breeding.","authors":"Eiji Yamamoto, Hiroshi Matsunaga, Akio Ohyama, Tsukasa Nunome, Hirotaka Yamaguchi, Koji Miyatake, Kenta Shirasawa, Sachiko Isobe","doi":"10.1270/jsbbs.24004","DOIUrl":"10.1270/jsbbs.24004","url":null,"abstract":"Tomatoes have the highest agricultural production among vegetables in Japan and worldwide. Japanese large-sized fresh-market tomatoes have a unique breeding history that differs from that of other countries, represented by pink-colored and juicy fruits with a good taste and flavor. We performed whole-genome resequencing of 150 Japanese large-sized fresh-market tomato cultivars released from the 1940s to the 2000s to unveil how breeding selection has changed the genome of Japanese tomato cultivars and provide a genomic basis for future Japanese tomato breeding. The genomic population structure of the cultivars was highly correlated with the year of release. Comparison between the agronomic performance and release year of the cultivars reflected trends in recent breeding selection: an increase in fruit sugar content and a decrease in yield performance. Multiple selection signatures were detected on all the tomato chromosomes. One of the selection signatures was related to the introgression of a resistance gene (Tm-2) from a wild relative. Interestingly, some of the putative QTLs detected by genome-wide association studies did not co-localize with the selection signatures, indicating that the genetic diversity of Japanese tomato cultivars still has the potential for genetic improvement of agronomic performance.","PeriodicalId":9258,"journal":{"name":"Breeding Science","volume":"74 4","pages":"344-353"},"PeriodicalIF":2.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11769584/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143051777","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}

引用次数: 0

Screening Brassica rapa for broad-spectrum resistance to Turnip mosaic virus. 油菜对萝卜花叶病毒广谱抗性的筛选。

IF 2 4区农林科学

Breeding Science Pub Date : 2024-09-01 Epub Date: 2024-08-27 DOI: 10.1270/jsbbs.24015

Ainan Tian, Masaya Yamamoto, Hideki Takahashi, Hiroyasu Kitashiba

{"title":"Screening Brassica rapa for broad-spectrum resistance to Turnip mosaic virus.","authors":"Ainan Tian, Masaya Yamamoto, Hideki Takahashi, Hiroyasu Kitashiba","doi":"10.1270/jsbbs.24015","DOIUrl":"10.1270/jsbbs.24015","url":null,"abstract":"Turnip mosaic virus (TuMV) poses a major threat to Brassica crops like Chinese cabbage, causing significant economic losses. A viable and effective strategy to manage such diseases is by improvement of genetic-based viral resistance. To achieve this, it is important to have detailed and wide-ranging genetic resources, necessitating genetic exploration. To identify useful TuMV resistant genetic resources, we screened geographically and genetically diverse resources including over 90 accessions from the Tohoku Univ. Brassica Seed Bank against eleven TuMV isolates phylogenetically classified into five clusters. Two USA accessions exhibited no or only slight symptoms with no virus protein detected in virus-inoculated and non-inoculated upper leaves, suggesting an extreme resistance to all tested TuMV isolates. Through sequencing and dCAPS analysis of eukaryotic translation initiation factor (eIF4E/eIFiso4E) in the 95 B. rapa accessions, several amino acid substitutions were observed on the dorsal surface and cap-binding sites of eIF4E/eIFiso4E proteins, with three of them significantly associated with resistance/susceptibility responses. When exploring co-infection using TuMV and cucumber mosaic virus (CMV), the TuMV susceptible accession died, but TuMV resistance was retained in the TuMV resistant accession. It suggested that the broad-spectrum resistance in the two USA accessions is a highly valuable resources for Brassica breeding.","PeriodicalId":9258,"journal":{"name":"Breeding Science","volume":"74 4","pages":"354-365"},"PeriodicalIF":2.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11769589/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143051646","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}

引用次数: 0

Resistance haplotypes to green rice leafhopper (Nephotettix cincticeps Uhler) estimated in genome-wide association study in Myanmar indica rice landraces. 缅甸籼稻地方品种对绿稻叶蝉（Nephotettix cinticeps Uhler）抗性单倍型的全基因组关联研究

IF 2 4区农林科学

Breeding Science Pub Date : 2024-09-01 Epub Date: 2024-08-23 DOI: 10.1270/jsbbs.23067

Nang Moe Kham, Hiroyuki Kanamori, Jianzhong Wu, Takashi Matsumoto, Daisuke Fujita, Hideshi Yasui, Atsushi Yoshimura, Yoshiyuki Yamagata

{"title":"Resistance haplotypes to green rice leafhopper (Nephotettix cincticeps Uhler) estimated in genome-wide association study in Myanmar indica rice landraces.","authors":"Nang Moe Kham, Hiroyuki Kanamori, Jianzhong Wu, Takashi Matsumoto, Daisuke Fujita, Hideshi Yasui, Atsushi Yoshimura, Yoshiyuki Yamagata","doi":"10.1270/jsbbs.23067","DOIUrl":"10.1270/jsbbs.23067","url":null,"abstract":"Green rice leafhopper (GRH, Nephotettix cincticeps Uhler) is a serious insect pest of rice in the temperate regions of Asia. Myanmar has a high genetic diversity and is located at the center of the origin of rice. To understand the genetic architecture of GRH resistance in Myanmar indica rice landraces, a genome-wide association study (GWAS) was performed using a diversity panel collected from diverse geographical regions. Phenotypic variation in GRH resistance was associated with three genomic regions, MTA4, MTA5, and MTA11, located on chromosomes 4, 5, and 11, respectively. MTA4 and MTA5 were adjacent to the known resistance genes GRH6 and GRH1. Analysis of haplotypes and linkage disequilibrium blocks revealed that the haplotypes HapGRH6A, HapGRH1A, and HapMTA11A mainly explained GRH resistance. Map-based cloning revealed that GRH6 was highly induced by GRH infestation and conferred resistance by inhibiting the sucking of phloem sap. The distribution of resistance haplotypes revealed that accessions harboring major resistance haplotypes (HapGRH6A and HapGRH1A) were mainly distributed in Southern Myanmar, and HapMTA11A was mainly responsible for GRH resistance in mountainous areas of Myanmar. Our findings could facilitate the elucidation of the molecular mechanism of GRH resistance and provide essential haplotype-based genetic information for the development of GRH-resistant rice cultivars.","PeriodicalId":9258,"journal":{"name":"Breeding Science","volume":"74 4","pages":"366-381"},"PeriodicalIF":2.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11769587/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143051675","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}

引用次数: 0

Breeding of a new malting barley variety 'Satuiku 5 go' for Hokkaido exhibiting improved grain yield and malting quality. 北海道麦芽新品种“satuku 5 go”的选育，籽粒产量和麦芽品质均有提高。

IF 2 4区农林科学

Breeding Science Pub Date : 2024-09-01 Epub Date: 2024-08-27 DOI: 10.1270/jsbbs.23094

Yoshiro Tokizono, Satoshi Asayama, Hironobu Jinno, Kazuya Araki, Nana Ashikaga, Ryohei Fujita, Hirotake Ito, Toshihisa Watanabe, Ryoichi Kanatani, Makoto Kihara, Naohiko Hirota, Masahito Nanamori, Hozumi Yoshida, Takehiro Hoki

{"title":"Breeding of a new malting barley variety 'Satuiku 5 go' for Hokkaido exhibiting improved grain yield and malting quality.","authors":"Yoshiro Tokizono, Satoshi Asayama, Hironobu Jinno, Kazuya Araki, Nana Ashikaga, Ryohei Fujita, Hirotake Ito, Toshihisa Watanabe, Ryoichi Kanatani, Makoto Kihara, Naohiko Hirota, Masahito Nanamori, Hozumi Yoshida, Takehiro Hoki","doi":"10.1270/jsbbs.23094","DOIUrl":"10.1270/jsbbs.23094","url":null,"abstract":"Hokkaido-specific malting barley varieties have been developed to improve the grain yield, disease resistance, malting quality, and brewing quality. In this report we describe the breeding and evaluation of brewing quality of a hulled two-row malting barley (Hordeum vulgare L.) variety 'Satuiku 5 go' lacking lipoxygenase-1 (LOX-1-less). 'Satuiku 5 go' was evaluated in the joint field trials for malting barley in Hokkaido from 2016 to 2018. 'Satuiku 5 go' exhibited 11% higher grain yield and 7.6 cm shorter plant height than the control variety, 'Ryohfu'. However, the disease severity of Fusarium head blight (FHB) in 'Satuiku 5 go' was higher than in 'Ryohfu'. For malting quality, 'Satuiku 5 go' exhibited higher diastatic power, soluble nitrogen content, and fine extract content, and lower wort β-glucan content than 'Ryohfu'. 100-litter pilot scale brewing trials were conducted with 'Satuiku 5 go' and 'Satuiku 2 go' as a control variety, also a LOX-1-less variety, and no clear differences were observed.","PeriodicalId":9258,"journal":{"name":"Breeding Science","volume":"74 4","pages":"382-387"},"PeriodicalIF":2.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11769583/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143051562","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}

引用次数: 0

A new cultivar 'Hisui no Kaori' opens up a fragrant type of lettuce (Lactuca sativa L.). 新品种“Hisui no Kaori”开辟了一种芳香型生菜（Lactuca sativa L.）。

IF 2 4区农林科学

Breeding Science Pub Date : 2024-09-01 Epub Date: 2024-08-27 DOI: 10.1270/jsbbs.24016

Kousuke Seki, Masahiro Hiraga, Eri Soga, Kenji Matsui

{"title":"A new cultivar 'Hisui no Kaori' opens up a fragrant type of lettuce (Lactuca sativa L.).","authors":"Kousuke Seki, Masahiro Hiraga, Eri Soga, Kenji Matsui","doi":"10.1270/jsbbs.24016","DOIUrl":"10.1270/jsbbs.24016","url":null,"abstract":"'Hisui no Kaori' is the first lettuce (Lactuca sativa L.) cultivar characterized by a sweet fragrance, attributed to 2-acetyl-1-pyrroline with the same compound as in fragrant rice and soybean cultivars, as well as edible leaves and stem. Field cultivation trials established optimal planting distances at 30 cm between seedlings, with a fertilizer requirement of N = 150 kg/ha. 'Hisui no Kaori' exhibited minimal stem burst as well as resistance to soft rot disease, proving easier to cultivate compared with prominent stem-type cultivars. Field cultivation tests at different altitudes and incubator tests revealed that an air temperature exceeding 20°C is pivotal for the development of the sweet fragrance. 'Hisui no Kaori' displayed moderately resistance to Fusarium wilt race 1 and highly resistance to race 2. In lettuce, discoloration is known to occur at the cut surface due to mechanical wounding. In a cut leaf test, 'Hisui no Kaori' was classified as having delayed discoloration. Overall, 'Hisui no Kaori' is expected to contribute to the expanding potential and the increasing market price of lettuce. This work represents a pioneering effort to open up the fragrant type of lettuce.","PeriodicalId":9258,"journal":{"name":"Breeding Science","volume":"74 4","pages":"388-392"},"PeriodicalIF":2.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11769588/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143051599","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}

引用次数: 0

Taxonomic history, morphology, evolution, gene pool and stress tolerances of azuki bean and its related wild Vigna genetic resources. 小豆及其野生近缘遗传资源的分类历史、形态、进化、基因库和耐寒性。

IF 2 4区农林科学

Breeding Science Pub Date : 2024-09-01 Epub Date: 2024-08-30 DOI: 10.1270/jsbbs.24008

Yu Takahashi, Norihiko Tomooka

{"title":"Taxonomic history, morphology, evolution, gene pool and stress tolerances of azuki bean and its related wild Vigna genetic resources.","authors":"Yu Takahashi, Norihiko Tomooka","doi":"10.1270/jsbbs.24008","DOIUrl":"10.1270/jsbbs.24008","url":null,"abstract":"This review compiles information on the morphology, historical taxonomic treatments, species origin, gene pool concept, geographical and ecological habitats, and stress tolerance of the azuki bean (Vigna angularis) and related species. Willdenow (1802) first described the azuki bean in the genus Dolichos, and Ohwi and Ohashi (1969) finally transferred it to the genus Vigna. The genus Vigna is currently divided into five subgenera: Ceratotropis, Haydonia, Lasiospron, Plectrotropis, and Vigna. The subgenus Ceratotropis includes the moth bean in section Aconitifoliae; the mungbean and black gram in section Ceratotropis; and the azuki bean, rice bean, and creole bean in section Angulares. The wild species in section Angulares generally possess larger standard petal with more prominent appendage, keel petal with longer pocket, pistil with longer style beak compared with those of species in sections Aconitifoliae and Ceratotropis, and characterized by glabrous mature pod, smooth seed coat, hypogeal germination seed, and cordate primary leaves with petiole. Section Angulares currently consists of 13 species. The taxa that cross readily with the azuki beans included in the primary genepool are the wild azuki bean V. angularis var. nipponensis, V. nepalensis, V. tenuicaulis, V. hirtella, V. minima, V. nakashimae, and V. riukiuensis. These wild species are expected to be used as breeding material against biotic and abiotic stresses.","PeriodicalId":9258,"journal":{"name":"Breeding Science","volume":"74 4","pages":"295-310"},"PeriodicalIF":2.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11769585/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143051713","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}

引用次数: 0

Development of a laboratory test using stem cuttings to measure resistance to foot rot disease caused by Diaporthe destruens in sweetpotato. 利用茎插条开发一种实验室测试方法，以衡量甘薯对去势茎腐病引起的茎腐病的抗性。

IF 2 4区农林科学

Breeding Science Pub Date : 2024-06-01 Epub Date: 2024-06-20 DOI: 10.1270/jsbbs.23072

Hiroaki Tabuchi, Akira Kobayashi, Yukari Kawata, Yoshihiro Okada, Yuki Ohdaira Kobayashi

{"title":"Development of a laboratory test using stem cuttings to measure resistance to foot rot disease caused by Diaporthe destruens in sweetpotato.","authors":"Hiroaki Tabuchi, Akira Kobayashi, Yukari Kawata, Yoshihiro Okada, Yuki Ohdaira Kobayashi","doi":"10.1270/jsbbs.23072","DOIUrl":"10.1270/jsbbs.23072","url":null,"abstract":"Over the last several years, foot rot caused by Diaporthe destruens has become the most destructive sweetpotato disease in the southernmost region of Japan. Breeding of cultivars resistant to foot rot is required for effective and low-cost management. Field tests are often used to evaluate resistance of cultivars, but this approach has several limitations, including a long test period of several months and the requirement of field isolation and labor-intensive procedures. To minimize these issues, we have developed an easier and faster laboratory method using stem cuttings for the resistance test by optimizing four parameters: the number of unfolded leaves per cuttings, the positions of stems from which a cutting was prepared, the adequate number of culture days after inoculation, and the density of conidia of D. destruens at inoculation. Significant correlation was detected between the resistance indices of the laboratory test and the field test, namely, the length of the rotted part of a stem and the proportion of the plants rotted at the basal part of a stem, respectively. These results indicated that the laboratory test could indirectly evaluate the foot rot resistance of sweetpotato stems in the field and will be helpful to breed resistant cultivars.","PeriodicalId":9258,"journal":{"name":"Breeding Science","volume":"74 3","pages":"214-222"},"PeriodicalIF":2.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11561415/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142647123","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}

引用次数: 0

THB1, a putative transmembrane protein that causes hybrid breakdown in rice. THB1，一种导致水稻杂交破裂的假定跨膜蛋白。

IF 2 4区农林科学

Breeding Science Pub Date : 2024-06-01 Epub Date: 2024-06-13 DOI: 10.1270/jsbbs.23065

Tae Wakabayashi, Kiyoaki Kato

{"title":"THB1, a putative transmembrane protein that causes hybrid breakdown in rice.","authors":"Tae Wakabayashi, Kiyoaki Kato","doi":"10.1270/jsbbs.23065","DOIUrl":"10.1270/jsbbs.23065","url":null,"abstract":"Hybrid breakdown is a post-zygotic reproductive isolation that hinders genetic exchange between species or populations in both animals and plants. Two complementary recessive genes, temperature sensitive hybrid breakdown1 (thb1) and thb2, cause hybrid breakdown in rice (Oryza sativa). The present study delimited the THB1 locus to a 9.1-kb sequence, containing a single gene encoding a putative transmembrane protein with unknown functions. Haplotype analysis of THB1 in the two core collections of 119 accessions revealed that these accessions were divided into 22 haplotypes. A test cross with thb2 carrier showed that haplotype2 (H2) was assigned to thb1 and was restricted to temperate japonica. A nonsynonymous nucleotide polymorphism (SNP) specific to H2 was identified as a causal mutation in thb1. A test cross with thb1 carrier indicated that six accessions, including temperate japonica, tropical japonica, and indica, carried thb2. These results suggest that thb1 has recently evolved in temperate japonica, whereas thb2 arose in an ancient japonica and introgressed into the present three subgroups. Furthermore, we developed a derived cleaved amplified polymorphic sequence (dCAPS) marker to detect causal SNP in THB1. Our findings provide new insights into reproductive isolation and may benefit rice breeding.","PeriodicalId":9258,"journal":{"name":"Breeding Science","volume":"74 3","pages":"193-203"},"PeriodicalIF":2.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11561410/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646333","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}

引用次数: 0

Genetic mapping and quantitative trait loci analysis for pistillate flowers per node and multi-pistillate flower traits in the F₂ cucumber population. 黄瓜 F2 群体中每节雌花和多雌花性状的遗传图谱和数量性状位点分析。

IF 2 4区农林科学

Breeding Science Pub Date : 2024-06-01 Epub Date: 2024-06-18 DOI: 10.1270/jsbbs.23070

Nattawat Anankul, Wannapa Sattayachiti, Namfon Onmanee, Saengchit Chanmoe, Weenun Bundithya, Jutamas Kumchai

{"title":"Genetic mapping and quantitative trait loci analysis for pistillate flowers per node and multi-pistillate flower traits in the F2 cucumber population.","authors":"Nattawat Anankul, Wannapa Sattayachiti, Namfon Onmanee, Saengchit Chanmoe, Weenun Bundithya, Jutamas Kumchai","doi":"10.1270/jsbbs.23070","DOIUrl":"10.1270/jsbbs.23070","url":null,"abstract":"This study focused on cucumbers' multi-pistillate flower (MPF) trait, which is essential for high yields. A genetic linkage map was constructed using a population of 219 F2 plants to analyze quantitative trait loci (QTL) associated with MPF traits. Crossbreeding of EWSCU-809 (MPF) with EWSCU-989 (single pistillate flower: SPF) generated an F1 hybrid that self-pollinated to form an F2 population. Based on 244 single nucleotide polymorphic markers across seven cucumber chromosomes, a linkage map facilitated QTL analysis considering average pistillate flowers (PFs) per node and nodes with MPF traits. The results indicated a 9:6:1 epistatic ratio in the F2 populations, revealing recessive allele control of the MPF trait in gynoecious plants. Three QTLs (qMP2.1, qMP3, qMP7) on chromosomes 2, 3, and 7 were associated with average PFs per node, explaining 5.6 to 10.3% of phenotypic variation. Four QTLs (qMP2.2, qMP3, qMP4, qMP7) on chromosomes 2, 3, 4, and 7 were linked to the presence of nodes with MPF traits, explaining 5.8 to 10.6% of phenotypic variance. Notably, QTL regions overlapped between the two datasets, suggesting pleiotropic effects, particularly on chromosomes 3 and 7. These reliable QTLs have the potential to improve breeding programs, enhance PF development, and increase cucumber yields.","PeriodicalId":9258,"journal":{"name":"Breeding Science","volume":"74 3","pages":"204-213"},"PeriodicalIF":2.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11561411/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142647132","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}

引用次数: 0

Substitution mapping and characterization of brown planthopper resistance genes from traditional rice cultivar 'Rathu Heenati' (Oryza sativa L.). 传统水稻栽培品种 "Rathu Heenati"（Oryza sativa L.）抗褐跳甲基因的替代图谱绘制和特性分析

IF 2 4区农林科学

Breeding Science Pub Date : 2024-06-01 Epub Date: 2024-07-02 DOI: 10.1270/jsbbs.23066

Saw Bo Day Shar, Cuong Dinh Nguyen, Sachiyo Sanada-Morimura, Shao-Hui Zheng, Daisuke Fujita

{"title":"Substitution mapping and characterization of brown planthopper resistance genes from traditional rice cultivar 'Rathu Heenati' (Oryza sativa L.).","authors":"Saw Bo Day Shar, Cuong Dinh Nguyen, Sachiyo Sanada-Morimura, Shao-Hui Zheng, Daisuke Fujita","doi":"10.1270/jsbbs.23066","DOIUrl":"10.1270/jsbbs.23066","url":null,"abstract":"The brown planthopper (BPH; Nilaparvata lugens Stål) is a devastating pest that causes severe rice yield losses in Asia. Introducing multiple BPH resistance genes into rice cultivars is an effective and sustainable way to mitigate yield losses. A traditional rice cultivar, 'Rathu Heenati', has durable BPH resistance due to multiple resistance genes (including BPH3 and BPH17) and quantitative trait loci (QTLs). However, these genes have not been used in Japanese rice breeding owing to limited genetic information. To identify markers tightly linked to BPH3 and BPH17 introgressed into the 'Sagabiyori' (susceptible) genetic background, we performed substitution mapping. BPH3 was delimited between RM3132 and RM589 on chromosome 6, and BPH17 between RM16493 and RM16531 on chromosome 4. We also performed QTL analysis to identify additional BPH resistance genes from 'Rathu Heenati' and detected a QTL, denoted as qBPH3.1, on chromosome 3. The effect of pyramiding BPH3 and BPH17 was significantly greater against virulent BPH populations than that of either gene alone. The combination of BPH3, BPH17 and qBPH3.1 from 'Rathu Heenati' might be facilitated to improve commercial Japanese cultivars with more robust BPH resistance.","PeriodicalId":9258,"journal":{"name":"Breeding Science","volume":"74 3","pages":"183-192"},"PeriodicalIF":2.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11561414/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646248","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}

引用次数: 0