Pub Date : 2021-01-20DOI: 10.1186/s42397-020-00078-w
S. R. Pinnamaneni, S. Anapalli, R. Sui, N. Bellaloui, K. N. Reddy
{"title":"Effects of irrigation and planting geometry on cotton (Gossypium hirsutum L.) fiber quality and seed composition","authors":"S. R. Pinnamaneni, S. Anapalli, R. Sui, N. Bellaloui, K. N. Reddy","doi":"10.1186/s42397-020-00078-w","DOIUrl":"https://doi.org/10.1186/s42397-020-00078-w","url":null,"abstract":"","PeriodicalId":15400,"journal":{"name":"Journal of Cotton Research","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2021-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77811152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-12-11DOI: 10.21203/rs.3.rs-125040/v1
Zhanqin Zhang, Li Zhang, Haiyang Tian, Y. Niu, Xiangkun Yang
Background The photosynthetic parameters of cotton plants may be modified by the timing of film removal during their growing period. This study was undertaken during 2015–2017 in Xinjiang, China, to determine to what extent the film mulching removal time, 1 and 10 days before the first irrigation and 1 day before the second irrigation after seedling emergence, influenced cotton’s photosynthetic characteristics. The control group (CK) was film-mulched throughout the growth stages. Results The results suggested the following: (1) Removing mulching-film within 50 days since seedling emergence had adverse effects on soil temperature and moisture. (2) Film-removal before the first or second irrigation after emergence improved the net photosynthetic rate in cotton’s later flowering stage and its transpiration rate in mid and later flowering stages while enhancing the actual electron transport rate (ETR) and maximum electron transfer rate (ETRmax) between cotton photosystems I and II. (3) Film-removal treatment also increased cotton plants’ tolerance to high irradiation after emergence, the trend was more pronounced in the early flowering stage in wetter years. (4) Leaf area index (LAI) of cotton was reduced in the film-removal treatment for which the least accumulation of dry matter occurred in a drought year (i.e., 2015). (5) Film removal caused a yield decrease in the dry year (2015), and the earlier the film was removed, the more seriously the yield decreased. Removing mulching film before the second irrigation could increase the yield of XLZ42 in the rainy year (2016) and the normal rainfall year (2017). Early film removal can increase the yield of XLZ45 in the rainy year (2016). Conclusions Collectively, our study’s experimental results indicate that applying mulch film removal at an appropriate, targeted time after seedling emergence had no adverse effects on soil moisture and temperature, and improved the photosynthetic performance of cotton, thus increased cotton yield and fiber quality, but no significant difference was reached.
{"title":"Photosynthetic characteristics of cotton are enhanced by altering the timing of mulch film removal","authors":"Zhanqin Zhang, Li Zhang, Haiyang Tian, Y. Niu, Xiangkun Yang","doi":"10.21203/rs.3.rs-125040/v1","DOIUrl":"https://doi.org/10.21203/rs.3.rs-125040/v1","url":null,"abstract":"Background The photosynthetic parameters of cotton plants may be modified by the timing of film removal during their growing period. This study was undertaken during 2015–2017 in Xinjiang, China, to determine to what extent the film mulching removal time, 1 and 10 days before the first irrigation and 1 day before the second irrigation after seedling emergence, influenced cotton’s photosynthetic characteristics. The control group (CK) was film-mulched throughout the growth stages. Results The results suggested the following: (1) Removing mulching-film within 50 days since seedling emergence had adverse effects on soil temperature and moisture. (2) Film-removal before the first or second irrigation after emergence improved the net photosynthetic rate in cotton’s later flowering stage and its transpiration rate in mid and later flowering stages while enhancing the actual electron transport rate (ETR) and maximum electron transfer rate (ETRmax) between cotton photosystems I and II. (3) Film-removal treatment also increased cotton plants’ tolerance to high irradiation after emergence, the trend was more pronounced in the early flowering stage in wetter years. (4) Leaf area index (LAI) of cotton was reduced in the film-removal treatment for which the least accumulation of dry matter occurred in a drought year (i.e., 2015). (5) Film removal caused a yield decrease in the dry year (2015), and the earlier the film was removed, the more seriously the yield decreased. Removing mulching film before the second irrigation could increase the yield of XLZ42 in the rainy year (2016) and the normal rainfall year (2017). Early film removal can increase the yield of XLZ45 in the rainy year (2016). Conclusions Collectively, our study’s experimental results indicate that applying mulch film removal at an appropriate, targeted time after seedling emergence had no adverse effects on soil moisture and temperature, and improved the photosynthetic performance of cotton, thus increased cotton yield and fiber quality, but no significant difference was reached.","PeriodicalId":15400,"journal":{"name":"Journal of Cotton Research","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2020-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87685445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-12-11DOI: 10.21203/rs.3.rs-125041/v1
Bao-jun Chen, Junjie Zhao, Guoyong Fu, Xinxin Pei, Zhaoe Pan, Hongge Li, Haris Ahmed, Shoupu He, X. Du
Background Cotton fibers are single-celled extensions of the seed epidermis, a model tissue for studying cytoskeleton. Tubulin genes play a critical role in synthesizing the microtubules (MT) as a core element of the cytoskeleton. However, there is a lack of studies concerning the systematic characterization of the tubulin gene family in cotton. Therefore, the identification and portrayal of G. hirsutum tubulin genes can provide key targets for molecular manipulation in cotton breeding. Result In this study, we investigated all tubulin genes from different plant species and identified 98 tubulin genes in G. hirsutum . Phylogenetic analysis showed that tubulin family genes were classified into three subfamilies. The protein motifs and gene structure of α-, β- tubulin genes are more conserved compared with γ- tubulin genes. Most tubulin genes are located at the proximate ends of the chromosomes. Spatiotemporal expression pattern by transcriptome and qRT-PCR analysis revealed that 12 α- tubulin and 7 β- tubulin genes are specifically expressed during different fiber development stages. However, Gh.A03G027200 , Gh.D03G169300, and Gh.A11G258900 had differential expression patterns at distinct stages of fiber development in varieties J02508 and ZRI015. Conclusion In this study, the evolutionary analysis showed that the tubulin genes were divided into three clades. The genetic structures and molecular functions were highly conserved in different plants. Three candidate genes, Gh.A03G027200 , Gh.D03G169300, and Gh.A11G258900 may play a key role during fiber development complementing fiber length and strength.
{"title":"Identification and expression analysis of Tubulin gene family in upland cotton","authors":"Bao-jun Chen, Junjie Zhao, Guoyong Fu, Xinxin Pei, Zhaoe Pan, Hongge Li, Haris Ahmed, Shoupu He, X. Du","doi":"10.21203/rs.3.rs-125041/v1","DOIUrl":"https://doi.org/10.21203/rs.3.rs-125041/v1","url":null,"abstract":"Background Cotton fibers are single-celled extensions of the seed epidermis, a model tissue for studying cytoskeleton. Tubulin genes play a critical role in synthesizing the microtubules (MT) as a core element of the cytoskeleton. However, there is a lack of studies concerning the systematic characterization of the tubulin gene family in cotton. Therefore, the identification and portrayal of G. hirsutum tubulin genes can provide key targets for molecular manipulation in cotton breeding. Result In this study, we investigated all tubulin genes from different plant species and identified 98 tubulin genes in G. hirsutum . Phylogenetic analysis showed that tubulin family genes were classified into three subfamilies. The protein motifs and gene structure of α-, β- tubulin genes are more conserved compared with γ- tubulin genes. Most tubulin genes are located at the proximate ends of the chromosomes. Spatiotemporal expression pattern by transcriptome and qRT-PCR analysis revealed that 12 α- tubulin and 7 β- tubulin genes are specifically expressed during different fiber development stages. However, Gh.A03G027200 , Gh.D03G169300, and Gh.A11G258900 had differential expression patterns at distinct stages of fiber development in varieties J02508 and ZRI015. Conclusion In this study, the evolutionary analysis showed that the tubulin genes were divided into three clades. The genetic structures and molecular functions were highly conserved in different plants. Three candidate genes, Gh.A03G027200 , Gh.D03G169300, and Gh.A11G258900 may play a key role during fiber development complementing fiber length and strength.","PeriodicalId":15400,"journal":{"name":"Journal of Cotton Research","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2020-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88569724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-12-04DOI: 10.21203/rs.3.rs-114976/v1
Jikun Song, Weifeng Pei, Jianjiang Ma, Shu-zhen Yang, B. Jia, Y. Bian, Yue Xin, Luyao Wu, Xinshan Zang, Y. Qu, Jinfa Zhang, Man Wu, Jiwen Yu
Background Micronaire is a comprehensive index reflecting the fineness and maturity of cotton fiber. Micronaire is one of the important internal quality indicators of the cotton fiber and is closely related to the value of the cotton fiber. Understanding the genetic basis of micronaire is required for the genetic improvement of the trait. However, the genetic architecture of micronaire at the genomic level is unclear. The present genome-wide association study (GWAS) aimed to identify the genetic mechanism of the micronaire trait in 83 representative upland cotton lines grown in multiple environments. Results GWAS of micronaire used 83 upland cotton accessions assayed by a Cotton 63 K Illumina Infinium single nucleotide polymorphism (SNP) array. A total of 11 quantitative trait loci (QTLs) for micronaire were detected on 10 chromosomes. These 11 QTLs included 27 identified genes with specific expression patterns. A novel QTL, qFM-A12–1 , included 12 significant SNPs, and GhFLA9 was identified as a candidate gene based on haplotype block analysis and on strong and direct linkage disequilibrium between the significantly related SNPs and gene. GhFLA9 was expressed at a high level during secondary wall thickening at 20∼25 days post-anthesis. The expression level of GhFLA9 was significantly higher in the low micronaire line (Msco-12) than that in the high micronaire line (Chuangyou-9). Conclusions This study provides a genetic reference for genetic improvement of cotton fiber micronaire and a foundation for verification of the functions of GhFLA9.
{"title":"Genome-wide association study of micronaire using a natural population of representative upland cotton (Gossypium hirsutum L.)","authors":"Jikun Song, Weifeng Pei, Jianjiang Ma, Shu-zhen Yang, B. Jia, Y. Bian, Yue Xin, Luyao Wu, Xinshan Zang, Y. Qu, Jinfa Zhang, Man Wu, Jiwen Yu","doi":"10.21203/rs.3.rs-114976/v1","DOIUrl":"https://doi.org/10.21203/rs.3.rs-114976/v1","url":null,"abstract":"Background Micronaire is a comprehensive index reflecting the fineness and maturity of cotton fiber. Micronaire is one of the important internal quality indicators of the cotton fiber and is closely related to the value of the cotton fiber. Understanding the genetic basis of micronaire is required for the genetic improvement of the trait. However, the genetic architecture of micronaire at the genomic level is unclear. The present genome-wide association study (GWAS) aimed to identify the genetic mechanism of the micronaire trait in 83 representative upland cotton lines grown in multiple environments. Results GWAS of micronaire used 83 upland cotton accessions assayed by a Cotton 63 K Illumina Infinium single nucleotide polymorphism (SNP) array. A total of 11 quantitative trait loci (QTLs) for micronaire were detected on 10 chromosomes. These 11 QTLs included 27 identified genes with specific expression patterns. A novel QTL, qFM-A12–1 , included 12 significant SNPs, and GhFLA9 was identified as a candidate gene based on haplotype block analysis and on strong and direct linkage disequilibrium between the significantly related SNPs and gene. GhFLA9 was expressed at a high level during secondary wall thickening at 20∼25 days post-anthesis. The expression level of GhFLA9 was significantly higher in the low micronaire line (Msco-12) than that in the high micronaire line (Chuangyou-9). Conclusions This study provides a genetic reference for genetic improvement of cotton fiber micronaire and a foundation for verification of the functions of GhFLA9.","PeriodicalId":15400,"journal":{"name":"Journal of Cotton Research","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2020-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87922356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-12-01DOI: 10.1186/s42397-020-00074-0
M. Zafar, Abdul Razzaq, M. Farooq, Abdul Rehman, H. Firdous, A. Shakeel, Huijuan Mo, Maozhi Ren
{"title":"Insect resistance management in Bacillus thuringiensis cotton by MGPS (multiple genes pyramiding and silencing)","authors":"M. Zafar, Abdul Razzaq, M. Farooq, Abdul Rehman, H. Firdous, A. Shakeel, Huijuan Mo, Maozhi Ren","doi":"10.1186/s42397-020-00074-0","DOIUrl":"https://doi.org/10.1186/s42397-020-00074-0","url":null,"abstract":"","PeriodicalId":15400,"journal":{"name":"Journal of Cotton Research","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74318910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-11-19DOI: 10.1186/s42397-021-00085-5
Lin Chen, Heng Sun, Jie Kong, Haijiang Xu, Xiyan Yang
{"title":"Integrated transcriptome and proteome analysis reveals complex regulatory mechanism of cotton in response to salt stress","authors":"Lin Chen, Heng Sun, Jie Kong, Haijiang Xu, Xiyan Yang","doi":"10.1186/s42397-021-00085-5","DOIUrl":"https://doi.org/10.1186/s42397-021-00085-5","url":null,"abstract":"","PeriodicalId":15400,"journal":{"name":"Journal of Cotton Research","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2020-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87892814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-11-13DOI: 10.1186/s42397-020-00073-1
C. Delhom, E. Hequet, Brendan R. Kelly, N. Abidi, V. Martin
{"title":"Calibration of HVI cotton elongation measurements","authors":"C. Delhom, E. Hequet, Brendan R. Kelly, N. Abidi, V. Martin","doi":"10.1186/s42397-020-00073-1","DOIUrl":"https://doi.org/10.1186/s42397-020-00073-1","url":null,"abstract":"","PeriodicalId":15400,"journal":{"name":"Journal of Cotton Research","volume":null,"pages":null},"PeriodicalIF":2.6,"publicationDate":"2020-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1186/s42397-020-00073-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72489952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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