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Transcription profiling of Medicago truncatula Mt TTG1 mutant seed

ABSTRACT: Medicago truncatula Tnt-1 insertional mutant for MtTTG1 gene (NF977) versus the wild-type R108. The seed samples are harvested at 16 days after pollination. Their transcript profiles were compared.

ORGANISM(S): Medicago truncatula

SUBMITTER: Yuhong Tang 

PROVIDER: E-MEXP-1757 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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A WD40 repeat protein from Medicago truncatula is necessary for tissue-specific anthocyanin and proanthocyanidin biosynthesis but not for trichome development.

Pang Yongzhen Y   Wenger Jonathan P JP   Saathoff Katie K   Peel Gregory J GJ   Wen Jiangqi J   Huhman David D   Allen Stacy N SN   Tang Yuhong Y   Cheng Xiaofei X   Tadege Million M   Ratet Pascal P   Mysore Kirankumar S KS   Sumner Lloyd W LW   Marks M David MD   Dixon Richard A RA  

Plant physiology 20090826 3

WD40 repeat proteins regulate biosynthesis of anthocyanins, proanthocyanidins (PAs), and mucilage in the seed and the development of trichomes and root hairs. We have cloned and characterized a WD40 repeat protein gene from Medicago truncatula (MtWD40-1) via a retrotransposon-tagging approach. Deficiency of MtWD40-1 expression blocks accumulation of mucilage and a range of phenolic compounds, including PAs, epicatechin, other flavonoids, and benzoic acids, in the seed, reduces epicatechin levels  ...[more]

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