Identification and Fine Mapping of Heading Date Related Mutant Gene in Rice

Shang, Hai-xuan; Ye, Shenghai; Deng, Xiaomei; Zhou, Ya; FenLian, Xiu; Ji, Xiang; Liu, Ji-Yun; Chen, Pingping; Jin, Qingsheng; Zhang, Xiaoming

doi:10.1016/s1672-6308(12)60051-1

Cited by 6 publications

(6 citation statements)

References 32 publications

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“…Flowering time (or heading date), which determines the beginning of the reproductive cycle, is greatly affected by environmental conditions (e.g., day length and temperature) and is mainly determined by PS, temperature sensitivity and vegetative-growth duration ( Shang et al, 2012 ). The photoperiod-related gene network has been widely studied and is the major genetic pathway controlling heading date in rice ( Gao et al, 2014 ).…”

Section: Introductionmentioning

confidence: 99%

Divergent Hd1, Ghd7, and DTH7 Alleles Control Heading Date and Yield Potential of Japonica Rice in Northeast China

et al. 2018

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The heading date is a vital factor in achieving a full rice yield. Cultivars with particular flowering behaviors have been artificially selected to survive in the long-day and low-temperature conditions of Northeast China. To dissect the genetic mechanism responsible for heading date in rice populations from Northeast China, association mapping was performed to identify major controlling loci. A genome-wide association study (GWAS) identified three genetic loci, Hd1, Ghd7, and DTH7, using general and mixed linear models. The three genes were sequenced to analyze natural variations and identify their functions. Loss-of-function alleles of these genes contributed to early rice heading dates in the northern regions of Northeast China, while functional alleles promoted late rice heading dates in the southern regions of Northeast China. Selecting environmentally appropriate allele combinations in new varieties is recommended during breeding. Introducing the early indica rice’s genetic background into Northeast japonica rice is a reasonable strategy for improving genetic diversity.

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Section: Introductionmentioning

confidence: 99%

Divergent Hd1, Ghd7, and DTH7 Alleles Control Heading Date and Yield Potential of Japonica Rice in Northeast China

et al. 2018

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“…Mutations can occur in the form of deletion, substitution, and transvertion of some base pairs or more. Shang et al (2012) has successful to identified Hd(t) gene in chromosome 10 of mutant rice, he found that there was no base point mutation in this promoter region, Table 3. The presence of also mentioned the result of Takano's research that deletion was obtained at 8, 10, 11 dan 33 bp respectively, however, Sato et al (2006) obtained 2 bases and 4 bases substitution respectively.…”

Section: Resultsmentioning

confidence: 99%

“…Mapping of Hd1, Hd2 and Hd3 have successfully carried out by Yamamoto et.al in Shang et al (2012). They reported that a dominant gene Hd with photoperiod sensitive found in Hd1, Hd2 ,Hd3,Hd5,Hd6,, , E1 and the other group were recessive photoperiod sensitive.…”

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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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“…It was occured T base-pair deletion and early stopped coding at 60 and 67 bp after translation initiation region in hd(t) mutant compared to parent plant (Shang et al 2012). Pradhan et al (2015) mentioned that backrossing of Jalmagna rice was found 100 BC1F1 plants showed presence Xa5, and 91 of plants showed presence of Xa13 and Xa21 from 360 BC1F1 seeds.…”

Section: Resultsmentioning

confidence: 99%

Marker Assisted Selection for Bacterial Leaf Blight Rice Mutant Lines Resistant

Aryanti¹,

Almaida²,

Heryani³

et al. 2016

IJBiotech

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Induction of mutation using gamma rays for improving of Mira-1 rice variety has been conducted. Rice mutant lines M2 generation have been obtained from mutation by the doses of 25, 50, 75, 100, 150 and 200 Gy of gamma rays. Selection of mutant lines tolerant to the disease was only observed in the fi eld neither genetically. Marker assisted selection is a tool to obtain a new rice variety tolerant to the disease of bacterial leaf blight (BLB) genetically. Xanthomonas oryzae pv.oryzae (Xa) was the pathogen of BLB, and the identifi cation of rice mutant lines which were containing of Xa5, Xa13 and Xa21 genes have been done using Polymerase Chain Reaction ( PCR ) method. The result showed that one mutant line, and four mutant lines from mutation by the doses of 25 Gy and 150 Gy were containing Xa5, Xa13 and Xa21 genes the same as that of Code rice variety as positive control, and none in Kencana Bali rice variety as negative control. Mira-1 rice variety as the parent plant was only contains Xa5 and Xa21 genes. The doses of 50 Gy and 100 Gy were very affective on removing of all bands for identifi cation of those genes. The purpose of this research was to obtain the mutant lines which were contain of those Xa genes as indicator for resistant to BLB disease genetically.

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Identification and Fine Mapping of Heading Date Related Mutant Gene in Rice

Cited by 6 publications

References 32 publications

Divergent Hd1, Ghd7, and DTH7 Alleles Control Heading Date and Yield Potential of Japonica Rice in Northeast China

Divergent Hd1, Ghd7, and DTH7 Alleles Control Heading Date and Yield Potential of Japonica Rice in Northeast China

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

Marker Assisted Selection for Bacterial Leaf Blight Rice Mutant Lines Resistant

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