NDLI: Characterization of tt15, a novel transparent testa mutant of Arabidopsis thaliana (L.) Heynh.

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Characterization of tt15, a novel transparent testa mutant of Arabidopsis thaliana (L.) Heynh.

Content Provider	Springer Nature Link
Author	Focks, Nicole Sagasser, Martin Weisshaar, Bernd Benning, Christoph
Copyright Year	1999
Abstract	The Arabidopsis thaliana seed coat typically has a brown color due to the accumulation of flavonoid pigments in the testa. Mutants of A. thaliana with defects in pigment biosynthesis often produce seeds that are olive brown or even yellow in appearence, and the responsible genetic loci are referred to as TRANSPARENT TESTA (TT). Large-scale screening for mutants affected in seed development and complementation analysis of a candidate mutant line with all published A. thalianatt mutants identified a new tt locus designated tt15. The tt15 mutation maps to the lower part of chromosome 1. Mutant plants produced pale greenish-brown seeds whose dormancy was slightly reduced. The phenotype was consistent with the maternal origin of the testa. Analysis of pigment accumulation and the study of expression patterns of genes involved in flavonoid biosynthesis in tt15 plants and seeds indicated a seed-specific phenotype. Most notable was a reduction of the cyanidin and quercetin content of tt15 seeds.
Starting Page	352
Ending Page	357
Page Count	6
File Format	PDF
ISSN	00320935
Journal	Planta
Volume Number	208
Issue Number	3
e-ISSN	14322048
Language	English
Publisher	Springer-Verlag
Publisher Date	1999-05-17
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science

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