Virus-induced overexpression of heterologous FLOWERING LOCUS T for efficient speed breeding in tomato.

Virus-induced overexpression of heterologous FLOWERING LOCUS T for efficient speed breeding in tomato.
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DOI:
10.1093/jxb/erad369
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发表时间:
2024-01-01
影响因子:
6.9
通讯作者:
Baulcombe, David C.
Baulcombe, David C.
中科院分区:
生物学1区
文献类型:
--
作者:
Deng, Yingtian;Yarur-Thys, Antonia;Baulcombe, David C.

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马铃薯X病毒(PVX)载体表达拟南芥FLOWESTERN LOCUS T(FT)或番茄FT直系同源物SINGLE-FLOWER TRUSS(SFT),与未感染或空载体感染的植物相比,由于加速番茄开花和成熟,缩短了番茄中的世代时间14-21 d,并导致花和果实数量增加2-3倍。拟南芥FT比番茄直向同源物SFT更有效,并且花或果实形态没有改变。该病毒不会传播到下一代,因此,表达异源FT的病毒载体将是一种有用的方法,以加快番茄和其他物种的育种。马铃薯X病毒诱导的拟南芥花座T(FT)和番茄单花TRUSS(SFT)的过表达加速了番茄的开花和成熟,FT比内源SFT更有效。
Potato virus X (PVX) vectors expressing the Arabidopsis thaliana FLOWERING LOCUS T (FT) or tomato FT ortholog SINGLE-FLOWER TRUSS (SFT) shortened the generation time in tomato due to accelerated tomato flowering and ripening by 14–21 d, and caused a 2–3-fold increase in the number of flowers and fruits, compared with non-infected or empty vector-infected plants. The Arabidopsis FT was more effective than the tomato orthologue SFT and there was no alteration of the flower or fruit morphology. The virus was not transmitted to the next generation; therefore viral vectors with expression of a heterologous FT will be a useful approach to speed breeding in tomato and other species. Potato virus X-induced overexpression of Arabidopsis FLOWERING LOCUS T (FT ) and tomato SINGLE-FLOWER TRUSS (SFT ) accelerated tomato flowering and ripening, with FT being more effective than the endogenous SFT.
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