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Recent The Crop Journal Articles

Recently published articles from The Crop Journal.

GNP6, a novel allele of MOC1, regulates panicle and tiller development in rice

Available online 3 July 2020
Zhanying Zhang | Xingming Sun | Xiaoqian Ma | Bingxia Xu | Yong Zhao | Zhiqi Ma | Gangling Li | Najeeb Ullah Khan | Yinghua Pan | Yuntao Liang | Hongliang Zhang | Jinjie Li | Zichao Li

The yield of rice is mostly affected by three factors, namely, panicle number, grain number and grain weight. Variation in panicle and grain numbers is mainly caused by tiller and panicle branches generated...

Quantitative trait loci for Fusarium head blight resistance in wheat cultivars Yangmai 158 and Zhengmai 9023

Available online 3 July 2020
Pingping Zhang | Chenjin Guo | Zhao Liu | Amy Bernardo | Hongxiang Ma | Peng Jiang | Guicheng Song | Guihua Bai

Fusarium head blight (FHB) is one of the prevalent fungal diseases of wheat worldwide. Exploring new FHB resistance quantitative trait loci (QTL) in adapted wheat cultivars is a critical step for breeding...

Genome-wide association studies reveal QTL hotspots for grain brightness and black point traits in barley

Available online 3 July 2020
Yong Jia | Sharon Westcott | Tianhua He | Lee Anne McFawn | Tefera Angessa | Camila Hill | Cong Tan | Xiaoqi Zhang | Gaofeng Zhou | Chengdao Li

Grain kernel discoloration (KD) in cereal crops leads to down-grading grain quality and substantial economic losses worldwide. Breeding KD tolerant varieties requires a clear understanding of the genetic...

A sucrose non-fermenting-1-related protein kinase-1 gene, IbSnRK1, confers salt, drought and cold tolerance in sweet potato

Available online 3 July 2020
Zhitong Ren | Shaozhen He | Yuan-yuan Zhou | Ning Zhao | Tao Jiang | Hong Zhai | Qingchang Liu

Sucrose non-fermenting-1-related protein kinase-1 (SnRK1) regulates carbon and nitrogen metabolism in plants. However, its roles and their underlying mechanisms in tolerance to abiotic stresses are...

Using genomic data to improve the estimation of general combining ability based on sparse partial diallel cross designs in maize

Available online 3 July 2020
Xin Wang | Zhenliang Zhang | Yang Xu | Pengchen Li | Xuecai Zhang | Chenwu Xu

Evaluation of general combining ability (GCA) is crucial to hybrid breeding in maize. Although the complete diallel cross design can provide an efficient estimation, sparse partial diallel cross (SPDC)...

Conversion of a normal maize hybrid into a waxy version using in vivo CRISPR/Cas9 targeted mutation activity

June 2020
Xiantao Qi | Hao Wu | Haiyang Jiang | Jinjie Zhu | Changling Huang | Xin Zhang | Changlin Liu | Beijiu Cheng

Waxy maize is a specialty maize that produces mainly amylopectin starch with special food or industrial values. The objective of this study was to overcome the limitations of wx mutant allele acquisition...

Highly efficient CRISPR-SaKKH tools for plant multiplex cytosine base editing

June 2020
Chengwei Zhang | Feipeng Wang | Si Zhao | Guiting Kang | Jinling Song | Lu Li | Jinxiao Yang

Base editing, as an expanded clustered regularly interspaced short palindromic repeats (CRISPR)-Cas genome editing strategy, permits precise and irreversible nucleotide conversion. SaKKH, an efficient...

Mutagenesis reveals that the rice OsMPT3 gene is an important osmotic regulatory factor

June 2020
Shengcai Huang | Shichao Xin | Guoqiang Xie | Jiao Han | Zhonglai Liu | Bing Wang | Shuqing Zhang | Qingyu Wu | Xianguo Cheng

Plant mitochondrial phosphate transporters regulate phosphate transport and ATP synthesis. Determining whether they function in abiotic stress response process would shed light on their response to...

Targeted mutagenesis of amino acid transporter genes for rice quality improvement using the CRISPR/Cas9 system

June 2020
Shiyu Wang | Yihao Yang | Min Guo | Chongyuan Zhong | Changjie Yan | Shengyuan Sun

High grain protein content (GPC) reduces rice eating and cooking quality (ECQ). We generated OsAAP6 and OsAAP10 knockout mutants in three high-yielding japonica varieties and one japonica line using...

Less and shrunken pollen 1 (LSP1) encodes a member of the ABC transporter family required for pollen wall development in rice (Oryza sativa L.)

June 2020
Tao Luo | Ting Zou | Guoqiang Yuan | Zhiyuan He | Wenjie Li | Yang Tao | Miaomiao Liu | Dan Zhou | Hongfeng Zhao | Jun Zhu | Yueyang Liang | Qiming Deng | Shiquan Wang | Aiping Zheng | Huainian Liu | Lingxia Wang | Ping Li | Shuangcheng Li

Pollen fertility is an agronomic trait that strongly influences rice yield. Recent studies have revealed that the development of the pollen wall is required for pollen fertility and is regulated by...

Improving the efficiency of the CRISPR-Cas12a system with tRNA-crRNA arrays

June 2020
Xixun Hu | Xiangbing Meng | Jiayang Li | Kejian Wang | Hong Yu

CRISPR-Cas12a offers a convenient tool for multiplex genome editing in rice. However, the CRISPR-Cas12a system displays variable editing efficiency across genomic loci, with marked influence by CRISPR...

Precise base editing of non-allelic acetolactate synthase genes confers sulfonylurea herbicide resistance in maize

June 2020
Yanmin Li | Jinjie Zhu | Hao Wu | Changlin Liu | Changling Huang | Jinhao Lan | Yanming Zhao | Chuanxiao Xie

Single-nucleotide polymorphisms contribute to phenotypic diversity in maize. Creation and functional annotation of point mutations has been limited by the low efficiency of conventional methods based...

Crop genome editing: A way to breeding by design

June 2020
Chuanxiao Xie | Yunbi Xu | Jianmin Wan

Increasing fidelity and efficiency by modifying cytidine base-editing systems in rice

June 2020
Ruiying Qin | Shengxiang Liao | Juan Li | Hao Li | Xiaoshuang Liu | Jianbo Yang | Pengcheng Wei

The efficiency of plant cytidine base-editing systems is limited, and unwanted mutations frequently occur in transgenic plants. We increased the cytidine editing frequency and fidelity of the plant...

Generation of seed lipoxygenase-free soybean using CRISPR-Cas9

June 2020
Jie Wang | Huaqin Kuang | Zhihui Zhang | Yongqing Yang | Long Yan | Mengchen Zhang | Shikui Song | Yuefeng Guan

Beany flavor induced by three lipoxygenases (LOXs, including LOX1, LOX2, and LOX3) restricts human consumption of soybean. It is desirable to generate lipoxygenase-free new mutant lines to improve the...

OsABA8ox2, an ABA catabolic gene, suppresses root elongation of rice seedlings and contributes to drought response

June 2020
Yan Zhang | Xiaoping Wang | Yanzhong Luo | Lan Zhang | Yuan Yao | Lu Han | Zhenhua Chen | Lei Wang | Yubin Li

In rice, OsABA8ox encodes abscisic acid (ABA) 8′-hydroxylase, which catalyzes the committed step of ABA catabolism. The contribution of ABA catabolism in root development remains unclear. We investigated...

Base editing in plants: Current status and challenges

June 2020
Sutar Suhas Bharat | Shaoya Li | Jingying Li | Lei Yan | Lanqin Xia

Genome editing technologies have revolutionized the field of plant science by enabling targeted modification of plant genomes and are emerging as powerful tools for both plant gene functional analyses...

Intron-targeted gene insertion in rice using CRISPR/Cas9: A case study of the Pi-ta gene

June 2020
Yang Xu | Fangquan Wang | Zhihui Chen | Jun Wang | Wen-Qi Li | Fangjun Fan | Yajun Tao | Ling Zhao | Weigong Zhong | Qian-Hao Zhu | Jie Yang

Intron-targeted gene insertion strategy using CRISPR/Cas9 (clustered regularly interspaced short palindromic repeats/CRISPR-associated Cas9) has been shown to be a potential tool for crop genetic improvement...

Bayesian regularized quantile regression: A robust alternative for genome-based prediction of skewed data

Available online 24 June 2020
Paulino Pérez-Rodríguez | Osval A. Montesinos-López | Abelardo Montesinos-López | José Crossa

Genomic prediction (GP) has become a valuable tool for predicting the performance of selection candidates for the next breeding cycle. A vast majority of statistical linear models on which GP is based...

Integrated transcriptome, small RNA, and degradome analysis to elucidate the regulation of rice seedling mesocotyl development during the passage from darkness to light

Available online 20 June 2020
Yusong Lyu | Xiangjin Wei | Min Zhong | Shipeng Niu | Shakeel Ahmad | Gaoneng Shao | Guiai Jiao | Zhonghua Sheng | Lihong Xie | Shikai Hu | Yawen Wu | Shaoqing Tang | Peisong Hu

The mesocotyl, a structure located between the basal part of the seminal root and the coleoptile node of seedlings, contributes to pushing the shoot tip through the soil surface, a function that is...

Identification of two glycerophosphodiester phosphodiesterase genes in maize leaf phosphorus remobilization

Available online 20 June 2020
Jingxin Wang | Wenbo Pan | Alexiy Nikiforov | William King | Wanting Hong | Weiwei Li | Yang Han | Jana Patton-Vogt | Jianbo Shen | Lingyun Cheng

Phosphate deficiency is one of the leading causes of crop productivity loss. Phospholipid degradation liberates phosphate to cope with phosphate deficiency. Glycerophosphodiester phosphodiesterases...

The improved FASTmrEMMA and GCIM algorithms for genome-wide association and linkage studies in large mapping populations

Available online 20 June 2020
Yangjun Wen | Yawen Zhang | Jin Zhang | Jianying Feng | Yuanming Zhang

Owing to high power and accuracy and low false positive rate in our multi-locus approaches for genome-wide association studies and linkage analyses, these approaches have attracted considerable attention...

RNA-Seq analysis and development of SSR and KASP markers in lentil (Lens culinaris Medikus subsp. culinaris)

Available online 19 June 2020
Dong Wang | Tao Yang | Rong Liu | Nana Li | Xiaomu Wang | Ashutosh Sarker | Xiaodong Zhang | Runfang Li | Yanyan Pu | Guan Li | Yuning Huang | Yishan Ji | Zhaojun Li | Qian Tian | Xuxiao Zong | Hanfeng Ding

Lentil (Lens culinaris Medikus subsp. culinaris, 2n = 14) is a cool-season legume with high production potential for multiple uses. However, limited molecular research has been conducted in this species...

Quantitative trait locus mapping of yield and plant height in autotetraploid alfalfa (Medicago sativa L.)

Available online 19 June 2020
Fei He | Ruicai Long | Tiejun Zhang | Fan Zhang | Zhen Wang | Xijiang Yang | Xueqian Jiang | Changfu Yang | Xuxin Zhi | Mingna Li | Longxi Yu | Junmei Kang | Qingchuan Yang

Alfalfa (Medicago sativa L.) is the most widely grown forage legume crop worldwide. Yield and plant height are important agronomic traits influenced by genetic and environmental factors. The objective...

Optimization of protoplast isolation, transformation and its application in sugarcane (Saccharum spontaneum L)

Available online 19 June 2020
Qiongli Wang | Guangrun Yu | Zhiyong Chen | Jinlei Han | Yufang Hu | Kai Wang

Sugarcane is a prominent source of sugar and ethanol production. Genetic analysis for trait improvement of sugarcane is greatly hindered by its complex genome, long breeding cycle, and recalcitrance...

Vacuolar phosphate transporters account for variation in phosphate accumulation in Astragalus sinicus cultivars

Available online 19 June 2020
Zhenhui Guo | Wenyuan Ruan | Qingyu Wu | Yuhu Lyu | Keke Yi

Astragalus sinicus is a commonly used legume green manure that fixes atmospheric N2 and accumulates mineral nutrients and organic substances that are beneficial to soils and subsequent crops. However,...

Genome-wide prediction in a hybrid maize population adapted to Northwest China

Available online 6 June 2020
Guoliang Li | Yuan Dong | Yusheng Zhao | Xiaokang Tian | Tobias Würschum | Jiquan Xue | Shaojiang Chen | Jochen C. Reif | Shutu Xu | Wenxin Liu

Genome-wide prediction is a promising approach to boost selection gain in hybrid breeding. Our main objective was to evaluate the potential and limits of genome-wide prediction to identify superior...

META-R: A software to analyze data from multi-environment plant breeding trials

Available online 6 June 2020
Gregorio Alvarado | Francisco M. Rodríguez | Angela Pacheco | Juan Burgueño | José Crossa | Mateo Vargas | Paulino Pérez-Rodríguez | Marco A. Lopez-Cruz

META-R (multi-environment trial analysis in R) is a suite of R scripts linked by a graphical user interface (GUI) designed in Java language. The objective of META-R is to accurately analyze multi-environment...

QTL mapping of drought tolerance traits in soybean with SLAF sequencing

Available online 5 June 2020
Honglei Ren | Jianan Han | Xingrong Wang | Bo Zhang | Lili Yu | Huawei Gao | Huilong Hong | Rujian Sun | Yu Tian | Xusheng Qi | Zhangxiong Liu | Xiaoxia Wu | Li-Juan Qiu

Drought stress is an important factor affecting soybean yield. Improving drought tolerance of soybean varieties can increase yield and yield stability when the stress occurs. Identifying QTL related...

Identification of a novel planthopper resistance gene from wild rice (Oryza rufipogon Griff.)

Available online 5 June 2020
Meng Yang | Jiebin Lin | Ling Cheng | Hailian Zhou | Shu Chen | Fang Liu | Rongbai Li | Yongfu Qiu

Rice planthoppers, including brown planthopper (BPH) and white-backed planthopper (WBPH), are the most destructive pests in Asian rice cultivation regions. Planthopper resistance genes that have been...

Harness the power of genomic selection and the potential of germplasm in crop breeding for global food security in the era with rapid climate change

Available online 5 June 2020
Tianhua He | Chengdao Li

Crop genetic improvements catalysed population growth, which in turn has increased the pressure for food security. We need to produce 70% more food to meet the demands of 9.5 billion people by 2050....

Straw return increases crop grain yields and K-use efficiency under a maize-rice cropping system

Available online 5 June 2020
Yuling Han | Wei Ma | Baoyuan Zhou | Akram Salah | Mingjian Geng | Cougui Cao | Ming Zhan | Ming Zhao

Straw return is an effective way to improve crop grain yield and potassium (K) use efficiency by increasing soil K content. However, the effects of straw return on soil K supplying capacity, replacement...

Genetic dissection of husk number and length across multiple environments and fine-mapping of a major-effect QTL for husk number in maize (Zea mays L.)

Available online 5 June 2020
Guangfei Zhou | Yuxiang Mao | Lin Xue | Guoqing Chen | Huhua Lu | Mingliang Shi | Zhenliang Zhang | Xiaolan Huang | Xudong Song | Derong Hao

Husk number (HN) and husk length (HL) influence the mechanical harvesting of maize grain. We investigated the genetic basis of HN and HL using a population of 204 recombinant inbred lines phenotypically...

Modeling and simulation of recurrent phenotypic and genomic selections in plant breeding under the presence of epistasis

Available online 8 May 2020
Mohsin Ali | Luyan Zhang | Ian DeLacy | Vivi Arief | Mark Dieters | Wolfgang H. Pfeiffer | Jiankang Wang | Huihui Li

Recurrent selection is an important breeding method for population improvement and selecting elite inbreds or fixed lines from the improved germplasm. Recently, a computer simulation tool called QuMARS...

Delineating a locus conferring Fusarium crown rot resistance on chromosome arm 1HL in barley by developing and analysing a large population derived from near isogenic lines

Available online 8 May 2020
Shang Gao | Zhi Zheng | Haiyan Hu | Yunfeng Jiang | Miao Liu | Jiri Stiller | Meixue Zhou | Chunji Liu

Fusarium crown rot (FCR), a chronic and severe disease caused by various Fusarium species, is prevalent in semi-arid cropping regions worldwide. One of the major QTL conferring FCR resistance was detected...

Development of oligonucleotide probes for FISH karyotyping in Haynaldia villosa, a wild relative of common wheat

Available online 8 May 2020
Jia Lei | Jiawen Zhou | Haojie Sun | Wentao Wan | Jin Xiao | Chunxia Yuan | Miroslava Karafiátová | Jaroslav Doležel | Haiyan Wang | Xiue Wang

Haynaldia villosa is a wild relative of wheat and a valuable gene resource for wheat improvement. Owing to the limited number of probes available for fluorescence in situ hybridization (FISH), the resolution...

Current strategies and advances in wheat biology

Available online 7 May 2020
Jun Li | Jing Yang | Yan Li | Ligeng Ma

The characterization of agronomically important genes has great potential for the improvement of wheat. However, progress in wheat genetics and functional genomics has been impeded by the high complexity...

Grain-filling characteristics and yield differences of maize cultivars with contrasting nitrogen efficiencies

Available online 7 May 2020
Qiang Li | Lunjing Du | Dongju Feng | Yun Ren | Zhexin Li | Fanlei Kong | Jichao Yuan

To investigate the effect of nitrogen management on the grain-filling characteristics and yield formation of maize cultivars with contrasting nitrogen efficiencies, and to identify differences in grain-filling...

Haplotype variations in QTL for salt tolerance in Chinese wheat accessions identified by marker-based and pedigree-based kinship analyses

Available online 7 May 2020
Shizhou Yu | Jianhui Wu | Meng Wang | Weiming Shi | Guangmin Xia | Jizeng Jia | Zhensheng Kang | Dejun Han

Most modern wheat cultivars were selected on the basis of yield-related indices measured under optimal fertilizer and irrigation inputs. With climate change, land degradation and salinity caused by...

Ordering of high-density markers by the k-Optimal algorithm for the traveling-salesman problem

Available online 7 May 2020
Luyan Zhang | Huihui Li | Lei Meng | Jiankang Wang

Construction of accurate and high-density linkage maps is a key research area of genetics. We investigated the efficiency of genetic map construction (MAP) using modifications of the k-Optimal (k-Opt)...

Functional markers developed from TaGS3, a negative regulator of grain weight and size, for marker-assisted selection in wheat

Available online 7 May 2020
Wei Zhang | Huifang Li | Liya Zhi | Qiannan Su | Jiajia Liu | Xiaoli Ren | Deyuan Meng | Na Zhang | Jun Ji | Xueyong Zhang | Junming Li

The TaGS3 homoeologous genes (homoeologs) located on chromosomes 7A, 4A, and 7D in hexaploid wheat were cloned. Relative expression analysis of the three TaGS3 homoeologs revealed that the expression...

Map-based cloning of a novel QTL qBN-1 influencing branch number in soybean [Glycine max (L.) Merr.]

Available online 7 May 2020
Sobhi F. Lamlom | Yong Zhang | Bohong Su | Haitao Wu | Xia Zhang | Jindong Fu | Bo Zhang | Li-Juan Qiu

Branch number (BN) is an important agronomic attribute related to the plant architecture, adaptability, and yield of soybean. To date, few studies of BN have been conducted to elucidate its genetic...

Genome-wide linkage mapping of QTL for root hair length in a Chinese common wheat population

Available online 6 May 2020
Feng Huang | Zhaoyan Chen | Dejie Du | Panfeng Guan | Lingling Chai | Weilong Guo | Zhaorong Hu | Mingming Xin | Huiru Peng | Yingyin Yao | Zhongfu Ni

Root hairs are fast growing, ephemeral tubular extensions of the root epidermis that aid nutrient and water uptake. The aim of the present study was to identify QTL for root hair length (RHL) using...

Genetic dissection of maternal influence on in vivo haploid induction in maize

April 2020
Sudha K. Nair | Vijay Chaikam | Manje Gowda | Vemuri Hindu | Albrecht E. Melchinger | Prasanna M. Boddupalli

In vivo haploid induction based on maternal haploid inducers is the first step in deriving completely homozygous maize doubled haploid (DH) lines. Haploid induction rate (HIR) is influenced by both...

Genome-wide association study in historical and contemporary U.S. winter wheats identifies height-reducing loci

April 2020
Sintayehu D. Daba | Priyanka Tyagi | Gina Brown-Guedira | Mohsen Mohammadi

Plant height has been a major target for selection of high-yielding varieties in wheat. Two height-reducing loci (Rht-B1 and Rht-D1) have been widely used since the Green Revolution. However, these...

Geographic differentiation and phylogeographic relationships among world soybean populations

April 2020
Xueqin Liu | Jianbo He | Yufeng Wang | Guangnan Xing | Yan Li | Shouping Yang | Tuanjie Zhao | Junyi Gai

A fast-growing protein and oil crop, soybean was domesticated in ancient China and disseminated early in Asia and afterwards to other continents, in particular the Americas in recent centuries. After...

Vacuolar invertase genes SbVIN1 and SbVIN2 are differently associated with stem and grain traits in sorghum (Sorghum bicolor)

April 2020
Yunhua Chi | Kimani Wilson | Zhiquan Liu | Xiaoyuan Wu | Li Shang | Limin Zhang | Haichun Jing | Huaiqing Hao

In higher plants, vacuolar invertases play essential roles in sugar metabolism, organ development, and sink strength. In sorghum (Sorghum bicolor), two vacuolar invertase genes, SbVIN1 (Sobic. 004G004800)...

RNA-seq reveals hormone-regulated synthesis of non-cellulose polysaccharides associated with fiber strength in a single-chromosomal-fragment-substituted upland cotton line

April 2020
Zhangqiang Song | Yu Chen | Chuanyun Zhang | Jingxia Zhang | Xuehan Huo | Yang Gao | Ao Pan | Zhaohai Du | Juan Zhou | Yanxiu Zhao | Zhi Liu | Furong Wang | Jun Zhang

Cotton fibers are the main raw materials of the textile industry. Exogenous superior fiber genes have been introduced into upland cotton to develop high-yield cultivars with excellent fiber quality....

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