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MADS1 maintains barley spike determinacy at high ambient temperatures

ABSTRACT: MADS1 maintains barley spike determinacy at high ambient temperatures

ORGANISM(S): Hordeum vulgare

PROVIDER: GSE156526 | GEO | 2021/03/01

REPOSITORIES: GEO

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MADS1 maintains barley spike determinacy at high ambient temperatures

Project description:MADS1 maintains barley spike determinacy at high ambient temperatures

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Hordeum vulgare cultivar:Golden Promise

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Comparative transcriptional profiling of organs of the barley spike

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VRS2 regulates hormone-mediated inflorescence patterning in barley

Project description:In the present study, we elucidate the molecular and hormonal role of the Six-rowed spike 2 (Vrs2) — a SHORT INTERNODES (SHI) transcriptional regulator during barley inflorescence and shoot development. Here we show that Vrs2 is specifically involved in floral organ patterning and phase duration by maintaining hormonal homeostasis and gradients during normal spike development; but similarly influenced plant stature traits. Furthermore, we establish a first link between the SHI-protein family and sucrose metabolism during organ growth and development, which may have implications for deeper molecular insights into crops' inflorescence and plant architecture. Differential gene expression study between BW-NIL(vrs2.e) vs. Bowman was done on the extracted RNA from immature shoot apices to infer the differences at level of expression at early spike developmental stages (triple mound (TM), glume primordia (GP), stamen primordia (SP), awn primordia (AP)).

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