Differential expression of major genes involved in the biosynthesis of aliphatic glucosinolates in intergeneric Baemoochae (Brassicaceae) and its parents during development
Key message Thus study found the temporal and spatial relationship between production of aliphatic glucosinolate compounds and the expression profile of glucosinolate-related genes during growth and development in radish, Chinese cabbage, and their intergeneric hybrid baemoochae plants. Glucosinolat...
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Veröffentlicht in: | Plant molecular biology 2020, Vol.102 (1-2), p.171-184 |
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Sprache: | eng |
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Thus study found the temporal and spatial relationship between production of aliphatic glucosinolate compounds and the expression profile of glucosinolate-related genes during growth and development in radish, Chinese cabbage, and their intergeneric hybrid baemoochae plants.
Glucosinolates (GSLs) are one of major bioactive compounds in
Brassicaceae
plants. GSLs play a role in defense against microbes as well as chemo-preventative activity against cancer, which draw attentions from plant scientists. We investigated the temporal relationship between production of aliphatic Glucosinolate (GSLs) compounds and the expression profile of GSL related genes during growth and development in radish, Chinese cabbage, and their intergeneric hybrid, baemoochae. Over the complete life cycle, Glucoraphasatin (GRH) and glucoraphanin (GRE) predominated in radish, whereas gluconapin (GNP), glucobrassicanapin (GBN), and glucoraphanin (GRA) abounded in Chinese cabbage. Baemoochae contained intermediate levels of all GSLs studied, indicating inheritance from both radish and Chinese cabbage. Expression patterns of
BCAT4
,
CYP79F1
,
CYP83A1
,
UGT74B1
,
GRS1
,
FMOgs
-
ox1
, and
AOP2
genes showed a correlation to their corresponding encoded proteins in radish, Chinese cabbage, and baemoochae. Interestingly, there is a sharp change in gene expression pattern involved in side chain modification, particularly
GRS1
,
FMOgs
-
ox1
, and
AOP2
, among these plants during the vegetative and reproductive stage. For instance, the
GRS1
was strongly expressed during leaf development, while both of
FMOgs
-
ox1
and
AOP2
was manifested high in floral tissues. Furthermore, expression of
GRS1
gene which is responsible for GRH production was predominantly expressed in leaf tissues of radish and baemoochae, whereas it was only slightly detected in Chinese cabbage root tissue, explaining why radish has an abundance of GRH compared to other
Brassica
plants. Altogether, our comprehensive and comparative data proved that aliphatic GSLs biosynthesis is dynamically and precisely regulated in a tissue- and development-dependent manner in
Brassicaceae
family members. |
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ISSN: | 0167-4412 1573-5028 |
DOI: | 10.1007/s11103-019-00939-2 |