Three CCT domain-containing genes were identified to regulate heading date by candidate gene-based association mapping and transformation in rice

Zhang, Li; Li, Qiuping; Dong, Haijiao; He, Qiaojun; Liang, Liwen; Tan, Cong; Han, Zhongmin; Yao, Wen; Li, Guangwei; Zhao, Hu; Xie, Weibo; Xing, Yongzhong

doi:10.1038/srep07663

Cited by 70 publications

(68 citation statements)

References 61 publications

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“…Furthermore, Hd1 and OsCCT1 were reported to have a CCT domain to regulate heading date and panicle size (Endo‐Higashi and Izawa , Zhang et al. ) and were associated with rachis length in this study as well. These genes were not detected by the GWAS for panicle length, as was reported by Zhao et al.…”

Section: Discussionsupporting

confidence: 63%

“…The overexpression of OsCCT1 and wild‐type Zhonghua 11 plants was reported in a previous study (Zhang et al. ).…”

Section: Methodssupporting

confidence: 58%

“…We also examined the rachis length and panicle length of plants with overexpression of OsCCT1 and wild‐type Zhonghua 11 plants that were reported in a previous study (Zhang et al. ). The result indicated that overexpression of OsCCT1 could repress both rachis length and panicle length (Table ).…”

Section: Resultsmentioning

confidence: 99%

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Genome‐wide association analysis reveals flowering‐related genes regulating rachis length in rice

Huang

Zhang

et al. 2016

Plant Breeding

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Rachis length is correlated with panicle size in rice. Unveiling the genetic basis of rachis length is important for understanding the genetic regulation of panicle size. In this study, we performed a genomewide association study of rachis length using 529 rice accessions from two environments. In total, 20 loci were identified for rachis length and distributed across the 12 chromosomes except for chromosomes 2 and 5. Thirteen of the 20 loci were not linked to the cloned panicle size genes. Six flowering‐related genes, including the CCT domain‐containing genes Ghd7, Ghd7.1, Hd1, OsCCT1 and OsCO3 as well as Ehd1, were associated with rachis length in this study. These findings suggest that the network of these flowering‐related genes probably participates in the regulation of rachis length and thus affects panicle length and yield. Interestingly, haplotype analysis showed that OsCCT1 is a putative candidate gene which plays a key role in the variation of rachis length. Together, the genetic loci identified in this study could be used for rice breeding by marker‐assisted selection to improve grain yield.

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Section: Discussionsupporting

confidence: 63%

“…The overexpression of OsCCT1 and wild‐type Zhonghua 11 plants was reported in a previous study (Zhang et al. ).…”

Section: Methodssupporting

confidence: 58%

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Genome‐wide association analysis reveals flowering‐related genes regulating rachis length in rice

Huang

Zhang

et al. 2016

Plant Breeding

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“…Previous studies have indicated that most COL genes exhibit diverse roles, including flowering, circadian rhythm and root growth, in plant development [54,55]. Therefore, it is necessary to determine the precise function of OsCOL9 during plant development in future studies.…”

Section: Discussionmentioning

confidence: 99%

CONSTANS-Like 9 (OsCOL9) Interacts with Receptor for Activated C-Kinase 1(OsRACK1) to Regulate Blast Resistance through Salicylic Acid and Ethylene Signaling Pathways

et al. 2016

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In a previous transcriptome analysis of early response genes in rice during Magnaporthe oryzae infection, we identified a CONSTANS-like (COL) gene OsCOL9. In the present study, we investigated the functional roles of OsCOL9 in blast resistance. OsCOL9 belonged to group II of the COL protein family, and it contained a BB-box and a C-terminal CCT (CONSTANS, COL and TOC1) domain. OsCOL9 was found in the nucleus of rice cells, and it exerted transcriptional activation activities through its middle region (MR). Magnaporthe oryzae infection induced OsCOL9 expression, and transgenic OsCOL9 knock-out rice plants showed increased pathogen susceptibility. OsCOL9 was a critical regulator of pathogen-related genes, especially PR1b, which were also activated by exogenous salicylic acid (SA) and 1-aminocyclopropane-1-carboxylicacid (ACC), the precursor of ethylene (ET). Further analysis indicated that OsCOL9 over-expression increased the expressions of phytohormone biosynthetic genes, NPR1, WRKY45, OsACO1 and OsACS1, which were related to SA and ET biosynthesis. Interestingly, we found that OsCOL9 physically interacted with the scaffold protein OsRACK1 through its CCT domain, and the OsRACK1 expression was induced in response to exogenous SA and ACC as well as M. oryzae infection. Taken together, these results indicated that the COL protein OsCOL9 interacted with OsRACK1, and it enhanced the rice blast resistance through SA and ET signaling pathways.

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“…Several heading date-related genes have been identified and isolated throughout 12 chromosomes by some researchers . Hori et al, 2015;Lee and An 2015;Zhang et al, 2015;Zhan et al, 2015). Study on the structure of genes associated with response to photoperiod on flowering of rice has been reported by Nakamichi 2015 andYoshitake et al, 2015, which is triggered by day length (Ichitani et al, 2014) and is regulated by many genes (Itoh and Izawa 2013;Tsuji et al 2011), andEbana et al (2011) also reported as a negative control.…”

Section: Introductionmentioning

confidence: 99%

Identification of Heading Date Six (Hd6) Gene Derived from Rice Mutant Varieties

2017

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Genes which were associated with flowering time to indicate the early maturity is known as heading date (Hd). Heading date six (Hd6) gene was identified from rice mutant varieties were Atomita 2, Atomita 3, Atomita 4, Bestari, Cilosari, Diah Suci, Sidenuk, Kahayan, Mayang, Meraoke, Mira-1, Pandan Putri, Superwin, Suluttan Unsrat 1, Suluttan Unsrat 2, Winongo, Woyla, Yuwono, while the rice var. Nipponbare was used as a positive control. All of rice mutant varieties derived from mutation induction by the dose of 0.2 kGy. The aim of this experiment was to find out the data base of mutant varieties which could be used as parent material with earlier maturity trait genetically. To obtain the DNA of plants, young leaves of each variety were extracted by liquid nitrogen, and then lysis and extracted by Kit Plant Genomic DNA. The amplification of DNA with 7 primers of Hd6 conducted of 40 cycles by PCR and were continues to separated by 1 % agarose. The results were shown that the rice Mira-1 and Bestari varieties obtained from mutation of Cisantana highly different from one to another on 7 primers of Hd6 used. Mayang variety from mutation of cross breeding between Cilosari and IR64, Pandan putri from Pandan wangi and Woyla from mutation of cross breeding from Atomita 2 and IR64 were highly different with those of their parents. Identification of Hd6 gene on Sidenuk variety was shown the same bands pattern with Nipponbare as control positive toward all primers used, this variety would be better for earlier maturity parent material compared to others. The information could be useful for breeding programs aiming to develop early maturing widely adaptive and high yielding rice cultivars.

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Three CCT domain-containing genes were identified to regulate heading date by candidate gene-based association mapping and transformation in rice

Cited by 70 publications

References 61 publications

Genome‐wide association analysis reveals flowering‐related genes regulating rachis length in rice

Genome‐wide association analysis reveals flowering‐related genes regulating rachis length in rice

CONSTANS-Like 9 (OsCOL9) Interacts with Receptor for Activated C-Kinase 1(OsRACK1) to Regulate Blast Resistance through Salicylic Acid and Ethylene Signaling Pathways

Identification of Heading Date Six (Hd6) Gene Derived from Rice Mutant Varieties

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