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Ef-cd locus shortens rice maturity duration without yield penalty

ABSTRACT: Ef-cd locus shortens rice maturity duration without yield penalty

PROVIDER: PRJNA552371 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR9637285.fastq.gz	Fastqsanger.gz
	SRR9637286.fastq.gz	Fastqsanger.gz
	SRR9637287.fastq.gz	Fastqsanger.gz
	SRR9637288.fastq.gz	Fastqsanger.gz

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Ef-cd locus shortens rice maturity duration without yield penalty

Project description:The contradiction between ‘high-yielding’ and ‘early-maturing’ hampers further improvement on annual rice yield. Here we reported the positional cloning of a major maturity duration-regulatory gene, Early flowering-completely dominant (Ef-cd), and demonstrated that natural variation in Ef-cd could be used to overcome the above contradictory. The Ef-cd locus gives rise to a long noncoding RNA (lncRNA) antisense transcript overlapping the OsSOC1 gene. Ef-cd lncRNA expression positively correlates with the expression of OsSOC1 and H3K36me3 deposition. Field test comparisons of early-maturing Ef-cd near-isogenic lines (NILs) with their wild types as well as the derivative early-maturing hybrids with their wild-type hybrids conducted under different latitudes determined that early-maturing Ef-cd allele shortens maturity duration (ranging from 7 to 20 days) without a concomitant yield penalty. Ef-cd facilitates nitrogen utilization and also improves the photosynthesis rate. Analysis of 1,439 elite hybrid rice varieties revealed that the 16 homozygotes and 299 heterozygotes possessing Ef-cd matured significantly earlier. Therefore, Ef-cd could be a vital contributor of elite early-maturing hybrid varieties in balancing grain yield with maturity duration.

2019-07-03 | GSE133746 | GEO

<i>Ef-cd</i> locus shortens rice maturity duration without yield penalty.

Project description:The contradiction between "high yielding" and "early maturing" hampers further improvement of annual rice yield. Here we report the positional cloning of a major maturity duration regulatory gene, Early flowering-completely dominant (Ef-cd), and demonstrate that natural variation in Ef-cd could be used to overcome the above contradictory. The Ef-cd locus gives rise to a long noncoding RNA (lncRNA) antisense transcript overlapping the OsSOC1 gene. Ef-cd lncRNA expression positively correlates with the expression of OsSOC1 and H3K36me3 deposition. Field test comparisons of early maturing Ef-cd near-isogenic lines with their wild types as well as of the derivative early maturing hybrids with their wild-type hybrids conducted under different latitudes determined that the early maturing Ef-cd allele shortens maturity duration (ranging from 7 to 20 d) without a concomitant yield penalty. Ef-cd facilitates nitrogen utilization and also improves the photosynthesis rate. Analysis of 1,439 elite hybrid rice varieties revealed that the 16 homozygotes and 299 heterozygotes possessing Ef-cd matured significantly earlier. Therefore, Ef-cd could be a vital contributor of elite early maturing hybrid varieties in balancing grain yield with maturity duration.

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H3K36me3 ChIP-seq of 2 rice lines D248 and SH881

Project description:A major maturity duration-regulatory gene, Early flowering-completely dominant (Ef-cd) was cloning in this study. The Ef-cd locus gives rise to a long noncoding RNA (lncRNA) antisense transcript overlapping the OsSOC1 gene. Ef-cd lncRNA expression positively correlates with the expression of OsSOC1 and H3K36me3 deposition.

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