Abstract
Leucoanthocyanidin reductase (LAR) converts leucoanthocyanidin to (+)-catechin, a precursor of proanthocyanidins abundant in Japanese persimmon (Diospyros kaki Thunb.) fruits. A putative LAR gene (DkLAR) was isolated by rapid amplification of cDNA ends from young fruits. The full-length cDNA of DkLAR gene was 1 356 bp long and encoded an open reading frame of 349 residues. The deduced DkLAR protein was closely related to the homolog in other plant species. The expression of the DkLAR gene in Chinese pollination-constant non-astringent (PCNA) genotype was coincident with the tannin cell development, but was not in Japanese PCNA and Chinese pollination-variant astringent (PCA) genotypes.
Abbreviations
- ANR:
-
anthocyanidin reductase
- CTAB:
-
cetyl-trimethyl-ammonium bromide
- CT:
-
condensed tannin
- IFR:
-
isoflavone reductase-like proteins
- LAR:
-
leucoanthocyanidin reductase
- PA:
-
proanthocyanidin
- PCA:
-
pollination-constant astringent
- PCNA:
-
pollination-constant non-astringent
- PVA:
-
pollination-variant astringent
- PVNA:
-
pollination variant non-astringent
- RACE:
-
rapid amplification of cDNA ends
- RT-PCR:
-
reverse transcriptase polymerase chain reaction
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Acknowledgements
This research was supported by Natural Science Foundation of China (NSFC No. 30871686 and No. 30921002) and the Research Fund for the Doctoral Program of Higher Education (No. 20070504011).
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Wang, Y., Zhang, Q.L. & Luo, Z.R. Isolation and expression of gene encoding leucoanthocyanidin reductase from Diospyros kaki during fruit development. Biol Plant 54, 707–710 (2010). https://doi.org/10.1007/s10535-010-0125-9
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DOI: https://doi.org/10.1007/s10535-010-0125-9