Molecular Breeding最新文献

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GhCYP704B1 is essential for pollen Exine and anther Cutin biosynthesis and plays a critical role in cotton male fertility. GhCYP704B1是花粉外壁和花药角质层合成的必需基因,在棉花雄性育性中起关键作用。
IF 3 3区 农林科学
Molecular Breeding Pub Date : 2025-10-04 eCollection Date: 2025-10-01 DOI: 10.1007/s11032-025-01608-7
Yuling Li, Jie Gao, Qian Yang, Hongli Zheng, Nnaemeka E Vitalis, Liping Ke, Jianxin Chen, Yanyan Zhao, Yuqiang Sun
{"title":"<i>GhCYP704B1</i> is essential for pollen Exine and anther Cutin biosynthesis and plays a critical role in cotton male fertility.","authors":"Yuling Li, Jie Gao, Qian Yang, Hongli Zheng, Nnaemeka E Vitalis, Liping Ke, Jianxin Chen, Yanyan Zhao, Yuqiang Sun","doi":"10.1007/s11032-025-01608-7","DOIUrl":"https://doi.org/10.1007/s11032-025-01608-7","url":null,"abstract":"<p><p>Cotton hybrids offer significant advantages, the application of male sterile lines in cotton hybrid breeding can reduce the cost of artificial castration and ensure hybrid seed purity. Pollen and anther development are a crucial aspect of plant fertility, sporopollenin synthesis provides the major component of the outer walls in pollen (exines) for preserving pollen grains activity, mutations in the genes involved in sporopollenin synthesis affect pollen development and fertility formation. The differentially expressed genes (DEGs) between the developing anthers of genic male sterile mutant (<i>ms1</i>) and its genetic background Coker 312 were identified, the genes related to pollen exine and anther cutin biosynthesis were screened from the DEGs. <i>GhCYP704B1</i> (Gh_D12G2768) was the DEGs with a significantly down-regulated expression level in <i>ms1</i> anthers, kept very low expression level in <i>ms1</i> developing anthers. At the same time, we also screened 20 homologies of <i>GhCYP704B1</i> from DEGs data, and the results showed that only <i>GhCYP704B1</i> was predominantly expressed in cotton anthers, while other homologies did not show significant expression changes. We used VIGS technology the expression level of <i>GhCYP704B1</i> in cotton C312, resulting in disrupted callose formation during the tetrad formation of microspore development, partial defect of the pollen exine, weakened pollen activity, low pollen germination rate, and poor plant fertility. The expression levels of genes related to pollen exine and anther cutin synthesis changed significantly, the composition and content of cutin monomers in cotton anthers were significantly reduced in <i>GhCYP704B1</i>-silenced lines. Abnormalities in callose caused blockage of sporopollenin synthesis and failure to synthesize the pollen exine properly. The findings indicate that <i>GhCYP704B1</i> affects cotton fertility and is involved in pollen exine biosynthesis, thus providing a candidate gene for creating new male sterile lines in <i>G. hirsutum</i>.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s11032-025-01608-7.</p>","PeriodicalId":18769,"journal":{"name":"Molecular Breeding","volume":"45 10","pages":"78"},"PeriodicalIF":3.0,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12496342/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145239237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 dissection for phosphorus uptake and utilization efficiency at seedling stage in wheat (Triticum aestivum L.). 小麦苗期磷吸收和利用效率的遗传分析。
IF 3 3区 农林科学
Molecular Breeding Pub Date : 2025-10-03 eCollection Date: 2025-10-01 DOI: 10.1007/s11032-025-01596-8
Naicui Wei, Jinbo Tao, Md Mostofa Uddin Helal, Pengyu Huang, Xiaohua Li, Jiajia Zhao, Yuqiong Hao, Xingwei Zheng, Bangbang Wu, Juanling Wang, Jun Zheng
{"title":"Genetic dissection for phosphorus uptake and utilization efficiency at seedling stage in wheat (<i>Triticum aestivum</i> L.).","authors":"Naicui Wei, Jinbo Tao, Md Mostofa Uddin Helal, Pengyu Huang, Xiaohua Li, Jiajia Zhao, Yuqiong Hao, Xingwei Zheng, Bangbang Wu, Juanling Wang, Jun Zheng","doi":"10.1007/s11032-025-01596-8","DOIUrl":"https://doi.org/10.1007/s11032-025-01596-8","url":null,"abstract":"<p><p>The identification of germplasm with high phosphorus efficiency is helpful to the genetic improvement of wheat. In this study, a doubled haploid (DH) population was used to investigate the traits related to phosphorus efficiency and map relevant loci under different conditions. On this basis, the association panel was used to verify mapping results. The results showed that shoot phosphorus concentration (SPC) and shoot phosphorus uptake per plant (SPUP) decreased, while shoot phosphorus utilization efficiency (SPUE) increased under low phosphorus. Correlation analysis showed that seedling biomass and root diameter could provide reference for identification of phosphorus efficiency. Twenty-one stable loci related to phosphorus efficiency were detected by linkage analysis. Among these, 11 loci including QRC-4D, <i>QSpue.7A.2</i>, and <i>QSpup.7A.2</i> haven't been reported yet. The physical interval of QRC-4D was detected by three seedling phosphorus efficiency indexes, along with five seedling morphological indexes and five adult agronomic traits, which explained phenotypic variation up to 31.18%. In the association panel, <i>QSpue.7A.2</i> associated with SPUE was also detected by genome-wide association study. Gene analysis revealed two candidate genes related to phosphorus within QRC-4D and <i>QSpue.7A.2</i>. These results provide valuable insights into genetic improvement and gene mining aimed at improving high phosphorus efficiency in wheat.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s11032-025-01596-8.</p>","PeriodicalId":18769,"journal":{"name":"Molecular Breeding","volume":"45 10","pages":"77"},"PeriodicalIF":3.0,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12494535/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145233044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Fruit crops: development, stress resilience and molecular breeding. 水果作物:发育、抗逆性和分子育种。
IF 3 3区 农林科学
Molecular Breeding Pub Date : 2025-09-27 eCollection Date: 2025-10-01 DOI: 10.1007/s11032-025-01597-7
Qiang Xu, Juyou Wu, Yuepeng Han, Craig Hardner
{"title":"Fruit crops: development, stress resilience and molecular breeding.","authors":"Qiang Xu, Juyou Wu, Yuepeng Han, Craig Hardner","doi":"10.1007/s11032-025-01597-7","DOIUrl":"https://doi.org/10.1007/s11032-025-01597-7","url":null,"abstract":"","PeriodicalId":18769,"journal":{"name":"Molecular Breeding","volume":"45 10","pages":"76"},"PeriodicalIF":3.0,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12476329/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145192124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Comparing artificial and convolutional neural networks with traditional models for Genomic prediction in wheat. 人工和卷积神经网络与传统小麦基因组预测模型的比较。
IF 3 3区 农林科学
Molecular Breeding Pub Date : 2025-09-10 eCollection Date: 2025-09-01 DOI: 10.1007/s11032-025-01598-6
Wei Zhao, Jie Sheng
{"title":"Comparing artificial and convolutional neural networks with traditional models for Genomic prediction in wheat.","authors":"Wei Zhao, Jie Sheng","doi":"10.1007/s11032-025-01598-6","DOIUrl":"10.1007/s11032-025-01598-6","url":null,"abstract":"<p><p>With the rapid development of sequencing technology, the application of genomic prediction has become more and more common in breeding schemes of livestocks and crops. Selecting an appropriate statistical model is of central importance to achieve high prediction accuracy. Recently, machine learning models have been expected to upgrade genomic prediction into a new era. However, the perspective still suffers from lack of evidence that machine learning models can generally outperform the traditional ones on empirical data sets. In this study, we compared two machine learning models based on artificial neural network (ANN) and convolutional neural network (CNN) with four traditional models, including genomic best linear unbiased prediction (GBLUP), Bayesian ridge regression (BRR), BayesA and BayesB, using three published data sets for grain yield in wheat. For each model, we considered two variants: modeling and ignoring the genotype-by-environment ([Formula: see text]) interaction. In the comparison, we considered two strategies of cross-validation: predicting genotypes that have not been evaluated in any environment (CV1) and predicting genotypes that have been tested in other environments (CV2). Our results showed that traditional Bayesian models (BayesA, BayesB, and BRR) outperformed GBLUP, ANN and CNN when considering [Formula: see text] interaction. The accuracies of ANN and CNN were higher than traditional models only in CV1 and when [Formula: see text] interaction was ignored. It was also found that the performance of the two machine learning models was significantly affected by the interaction between the CV strategy and the way of treating the [Formula: see text] interaction, while that of the four traditional models was only influenced by whether the [Formula: see text] interaction was considered or not. Thus, machine learning models can be a powerful complementary to the traditional ones and their superiority may depend on the prediction scenario. Among the two machine learning models, we observed that the accuracy of ANN was higher than CNN in most cases, indicating that it is still challenging to adapt complex machine learning models such as CNN to genomic prediction.</p>","PeriodicalId":18769,"journal":{"name":"Molecular Breeding","volume":"45 9","pages":"75"},"PeriodicalIF":3.0,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12423009/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145065077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 recombinant inbred lines and QTL analysis of plant height and fruit shape-related traits in Cucurbita pepo L. 瓜类重组自交系的选育及株高、果形相关性状的QTL分析。
IF 3 3区 农林科学
Molecular Breeding Pub Date : 2025-09-09 eCollection Date: 2025-09-01 DOI: 10.1007/s11032-025-01592-y
Ying Duan, Kailiang Bo, Qin Shu, Meng Zhang, Yuzi Shi, Yiqun Weng, Changlin Wang
{"title":"Development of recombinant inbred lines and QTL analysis of plant height and fruit shape-related traits in <i>Cucurbita pepo</i> L.","authors":"Ying Duan, Kailiang Bo, Qin Shu, Meng Zhang, Yuzi Shi, Yiqun Weng, Changlin Wang","doi":"10.1007/s11032-025-01592-y","DOIUrl":"10.1007/s11032-025-01592-y","url":null,"abstract":"<p><p>Zucchini (<i>Cucurbita pepo</i> subsp. <i>pepo</i>) stands as an economically vital crop in China. In zucchini breeding, plant architectural patterns and fruit morphological characteristics serve as pivotal traits. In this study, we employed quantitative trait locus (QTL) analysis using recombinant inbred lines (RILs) derived from two distinct inbred lines, JinGL (subsp. <i>ovifera</i>) and HM-S2 (subsp. <i>pepo</i>), in conjunction with a high-density genetic map. Our investigation focused on ten QTLs associated with six horticulturally significant traits, including hypocotyl length (HL), plant height (PH), and four fruit-related traits: fruit length (FL), fruit diameter (FD), fruit shape index (FSI), and fruit weight (FW). The QTLs governing HL and PH were mapped to Chr03/LG10 and named <i>qhl3.1</i> and <i>qph3.1</i>, respectively. The candidate gene <i>Cp4.1LG10g05910</i>/<i>CpDw</i> for <i>qph3.1</i> was successfully identified. Additionally, three novel QTLs related to fruit size and shape were discovered. Among them, <i>qfsi8.1/qfl8.1</i>, demarcated by Marker238258 and Marker240069 on Chromosome 08/Linkage group 17 (Chr08/LG17), is a new major QTL regulating the fruit shape of zucchini. Through genomic insertion-deletion (InDel) and qRT-PCR analyses, we predicted genes within the <i>qfsi8.1/qfl8.1</i> candidate interval, uncovering <i>Cp4.1LG17g02030/CpIAA12</i> and <i>Cp4.1LG17g02010/CpCalB</i> as potential candidate genes. We developed molecular markers tightly linked to <i>qph3.1</i> and <i>qfl8.1</i> and validated them in 171 and 224 <i>Cucurbita pepo</i> germplasms, achieving accuracy rates of 96% and 100%, respectively. This study deepens our understanding of the genetic basis of key traits and provides valuable references for molecular breeding in <i>Cucurbita pepo</i>.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s11032-025-01592-y.</p>","PeriodicalId":18769,"journal":{"name":"Molecular Breeding","volume":"45 9","pages":"74"},"PeriodicalIF":3.0,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12420555/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145040912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Fine-mapping the low number of tillers (lnt2) locus in barley. 大麦低分蘖数(lnt2)位点的精细定位。
IF 3 3区 农林科学
Molecular Breeding Pub Date : 2025-09-09 eCollection Date: 2025-09-01 DOI: 10.1007/s11032-025-01589-7
Shuai Hou, Hong Zhou, Jinxiong Lv, Peng Chen, Caixia Li, Yu Lin, Yueyue Liu, Yaxi Liu
{"title":"Fine-mapping the <i>low number of tillers</i> (<i>lnt2</i>) locus in barley.","authors":"Shuai Hou, Hong Zhou, Jinxiong Lv, Peng Chen, Caixia Li, Yu Lin, Yueyue Liu, Yaxi Liu","doi":"10.1007/s11032-025-01589-7","DOIUrl":"10.1007/s11032-025-01589-7","url":null,"abstract":"<p><p>Tiller number is an essential agronomic characteristic that influences barley morphology and yield. A barley low number of tillers mutant CIHO 11,530 exhibits few tillers and in this study, we conducted a genetic analysis of the barley <i>low number of tillers 2</i> (<i>lnt2</i>) locus. Linkage analysis showed that <i>lnt2</i> was mapped in an interval of 3.39 cM on chromosome 6HS between the flanking markers <i>SNP1765</i> and <i>SNP526</i>, explaining 53.06% of the phenotypic variance. The genetic effect of <i>lnt2</i> was further verified in two other genetic backgrounds, explaining variances of 86.43% and 91.01% in tiller numbers between lines carrying the <i>lnt2</i> mutant and wild-type alleles, respectively. Furthermore, we constructed a large F<sub>2</sub> population and fine-mapped <i>lnt2</i>. Finally, <i>lnt2</i> was mapped within a 0.19 cM genetic interval delimited by the tightly linked KASP markers <i>KASP6359</i> and <i>KASP365</i>, and the physical interval was located at 40.57-42.35 Mb. In this interval, three genes were highly likely <i>lnt2</i> based on gene annotations, sequence and gene expression analyses. Our research provides valuable information for the map-based cloning of <i>lnt2</i>.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s11032-025-01589-7.</p>","PeriodicalId":18769,"journal":{"name":"Molecular Breeding","volume":"45 9","pages":"73"},"PeriodicalIF":3.0,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12420536/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145040985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Identification and characterization of a novel leaky vanillin aminotransferase (vamt) allele, affecting capsaicinoid composition in chili pepper (Capsicum chinense). 影响辣椒类辣椒素组成的新型泄密型香兰素转氨酶(vamt)等位基因的鉴定与鉴定。
IF 3 3区 农林科学
Molecular Breeding Pub Date : 2025-09-09 eCollection Date: 2025-09-01 DOI: 10.1007/s11032-025-01595-9
Akihito Morimoto, Erasmus Kirii, Nagisa Okuda, Kaori Sano, Kenji Kobata, Sho Ohno, Tanjuro Goto, Yuichi Yoshida, Ken-Ichiro Yasuba, Yoshiyuki Tanaka
{"title":"Identification and characterization of a novel leaky <i>vanillin aminotransferase</i> (<i>vamt</i>) allele, affecting capsaicinoid composition in chili pepper (<i>Capsicum chinense</i>).","authors":"Akihito Morimoto, Erasmus Kirii, Nagisa Okuda, Kaori Sano, Kenji Kobata, Sho Ohno, Tanjuro Goto, Yuichi Yoshida, Ken-Ichiro Yasuba, Yoshiyuki Tanaka","doi":"10.1007/s11032-025-01595-9","DOIUrl":"10.1007/s11032-025-01595-9","url":null,"abstract":"<p><p>Capsaicinoids and their low pungent analogs are the important compounds to determine quality of chili pepper fruit in food industrial and medical purposes. Our previous screening for chili pepper bio-resources has shown that the pungent accession 'Charapita' (CH) (<i>Capsicum chinense</i>) has a unique composition with a higher capsinoid content. This study aimed to identify the mutation responsible for the high capsinoid content in CH. QTL analysis was performed using F<sub>2</sub> population between Red Habanero (RH) and CH, and it detected a major QTL on chromosome 3. Further genetic analysis showed that the QTL was narrowed down to approximately 400 kb region, which includes <i>VAMT</i> (<i>vanillin aminotransferase</i>). Allelism test demonstrated that CH possesses a leaky <i>vamt</i> allele. The sequencing analysis revealed that CH-type <i>vamt</i> allele has a unique amino acid substitution (G373E) due to a SNP in exon 15. CH-type <i>vamt</i> decreased pungency by 50%, and increased capsinoid content about three times compared with RH-type. We designated the CH-type allele as <i>vamt</i> <sup>L3</sup>. There was no difference in the expression levels of <i>VAMT</i> or other capsaicinoid biosynthetic genes between RH and CH. The vanillylamine synthesis activity was evaluated with crude extract from placental tissue. It showed that the activity in CH was 30 times less compared with RH. Given that the enzyme activity significantly decreased without transcriptional change, G373E likely reduces VAMT activity, conferring the characteristic composition of capsaicinoids and capsinoids. The novel <i>vamt</i> allele (<i>vamt</i> <sup>L3</sup>) will contribute to manipulate pungency level and capsinoid content in chili pepper breeding.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s11032-025-01595-9.</p>","PeriodicalId":18769,"journal":{"name":"Molecular Breeding","volume":"45 9","pages":"71"},"PeriodicalIF":3.0,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12420531/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145040956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 linkage map construction and QTL mapping for panicle-related traits in foxtail millet (Setaria Italica (L.) P. Beauv.). 谷子(Setaria Italica (L.))穗部性状遗传连锁图谱构建及QTL定位p .测定)。
IF 3 3区 农林科学
Molecular Breeding Pub Date : 2025-09-09 eCollection Date: 2025-09-01 DOI: 10.1007/s11032-025-01594-w
Huan Li, Qianxue Zhu, Tianguo Wang, Yuqin Zhao, Jiahui Fan, Lejie Yang, Shiyuan Wang, Yixuan Ma, Lu Chen, Xiaorui Li, Shuqi Dong, Xiaoqian Chu, Xiangyang Yuan, Jiagang Wang, Lulu Gao, Guanghui Yang
{"title":"Genetic linkage map construction and QTL mapping for panicle-related traits in foxtail millet (<i>Setaria Italica</i> (L.) P. Beauv.).","authors":"Huan Li, Qianxue Zhu, Tianguo Wang, Yuqin Zhao, Jiahui Fan, Lejie Yang, Shiyuan Wang, Yixuan Ma, Lu Chen, Xiaorui Li, Shuqi Dong, Xiaoqian Chu, Xiangyang Yuan, Jiagang Wang, Lulu Gao, Guanghui Yang","doi":"10.1007/s11032-025-01594-w","DOIUrl":"10.1007/s11032-025-01594-w","url":null,"abstract":"<p><p>Panicle-related traits are important factors affecting the final yield of foxtail millet, and it is imperative to detect their underlying genetic basis. In this study, we constructed a genetic linkage map using the F<sub>2</sub> population crossed by Changsheng07 and Donggu218, two foxtail millet lines with significant differences in panicle-related traits. The genetic linkage map included 159 SSR markers and 37 Indel markers, covering 1545.5 cM, with average distance of 7.89 cM between adjacent markers. Quantitative trait loci (QTL) mapping was conducted by combining the genetic linkage map and the phenotypic data of nine panicle-related traits in F<sub>2:3</sub> families, and a total of 22 QTL were identified, with phenotypic variation explained (PVE) of 0.06-50.14%. Among them, the increased effect alleles of 16 QTL were derived from the parent Changsheng07, and seven QTL (<i>qMPL3.1</i>, <i>qMPL5</i>, <i>qMPW2</i>, <i>qSD5</i>, <i>qTGW5.1</i>, <i>qTGW5.2</i> and <i>qGL5</i>) were major QTL, which explained the phenotypic variation of 11.41%, 12.78%, 13.75%, 34.81%, 50.14%, 40.28% and 11.32%, respectively. Moreover, 13 of 22 QTL formed four QTL clusters. These results will lay a foundation for the cloning and functional analysis of candidate genes involved in panicle development, and provide a theoretical basis for breeding high yield varieties through molecular marker-assisted selection in foxtail millet.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s11032-025-01594-w.</p>","PeriodicalId":18769,"journal":{"name":"Molecular Breeding","volume":"45 9","pages":"72"},"PeriodicalIF":3.0,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12420560/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145040922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Uncovering a stable QTL qSRI.A06 and candidate gene for rapeseed pod shatter resistance. 发现一个稳定的QTL qSRI。油菜籽抗碎荚性候选基因A06。
IF 3 3区 农林科学
Molecular Breeding Pub Date : 2025-08-22 eCollection Date: 2025-09-01 DOI: 10.1007/s11032-025-01590-0
Wenxiang Wang, Wen Chu, Hui Wang, Mei Han, Wei Wang, Hongtao Cheng, Desheng Mei, Qiong Hu, Taocui Huang, Jia Liu, Taocui Huang
{"title":"Uncovering a stable QTL <i>qSRI.A06</i> and candidate gene for rapeseed pod shatter resistance.","authors":"Wenxiang Wang, Wen Chu, Hui Wang, Mei Han, Wei Wang, Hongtao Cheng, Desheng Mei, Qiong Hu, Taocui Huang, Jia Liu, Taocui Huang","doi":"10.1007/s11032-025-01590-0","DOIUrl":"10.1007/s11032-025-01590-0","url":null,"abstract":"<p><p>Rapeseed pods are prone to dehiscence, resulting in yield loss at maturity. In the present study, we investigated the shatter resistance index (SRI) of 280 doubled haploid (DH) lines derived from a cross between ZS11 (susceptible line) and R11 (resistant line). Based on the phenotypic data obtained from four environments and a high-density genetic map, a significant QTL (<i>qSRI.A06</i>) for shatter resistance on A06 chromosome were stably detected. This locus explained 4.80% - 15.00% of the phenotypic variation and the peak position covered a 664 Kb region. The effect of <i>qSRI.A06</i> was verified in BC<sub>3</sub>F<sub>2</sub> and BC<sub>3</sub>F<sub>3</sub> populations and delimited in a 90.8 Kb region comprising 11 genes. Out of these genes, a differencially expressed gene, <i>BnaA06g27900D</i>, was identified to be involved in cell wall development by comparative transcriptome analysis. Regional association revealed four SNP/Indel variations in the promoter associated with pod shattering resistance. The highest Indels A06-41975887 showed suggestive association with SRI (<i>p</i> = 8.80E-06) with a TG allele variation. The stable locus <i>qSRI.A06</i> and the candidate gene <i>BnaA06g27900D</i> will be helpful for understanding the resistance mechanism and improving shatter resistance in rapeseed.</p><p><strong>Supplementary information: </strong>The online version contains supplementary material available at 10.1007/s11032-025-01590-0.</p>","PeriodicalId":18769,"journal":{"name":"Molecular Breeding","volume":"45 9","pages":"70"},"PeriodicalIF":3.0,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12373569/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144961668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Kemai 1609, a molecular designed wheat variety with stripe rust and leaf rust resistance. 抗条锈病和叶锈病的分子设计小麦品种科麦1609。
IF 3 3区 农林科学
Molecular Breeding Pub Date : 2025-08-22 eCollection Date: 2025-09-01 DOI: 10.1007/s11032-025-01593-x
Yongxing Chen, Xiuhua Zhu, Qiuhong Wu, Lingli Dong, Huaizhi Zhang, Hongkui Fu, Ping Lu, Miaomiao Li, Guanghao Guo, Keyu Zhu, Gaojie Wang, Chengguo Yuan, Hongjie Li, Xicheng Wang, Tingjie Cao, Zhiyong Liu
{"title":"Kemai 1609, a molecular designed wheat variety with stripe rust and leaf rust resistance.","authors":"Yongxing Chen, Xiuhua Zhu, Qiuhong Wu, Lingli Dong, Huaizhi Zhang, Hongkui Fu, Ping Lu, Miaomiao Li, Guanghao Guo, Keyu Zhu, Gaojie Wang, Chengguo Yuan, Hongjie Li, Xicheng Wang, Tingjie Cao, Zhiyong Liu","doi":"10.1007/s11032-025-01593-x","DOIUrl":"10.1007/s11032-025-01593-x","url":null,"abstract":"","PeriodicalId":18769,"journal":{"name":"Molecular Breeding","volume":"45 9","pages":"69"},"PeriodicalIF":3.0,"publicationDate":"2025-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12373560/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144961705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
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