Genome-wide identification, phylogeny, and expression analysis of the SWEET gene family in tomato

Feng, Chao; Han, Jia Xuan; Han, Xiao; Jiang, Jing

doi:10.1016/j.gene.2015.07.055

Cited by 137 publications

(144 citation statements)

References 45 publications

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“…lycopersicum 18 , and Vitis vinifera 4 . In tomato, expression levels of SWEET12C and SWEET14 were relatively high in ripening fruit 43 . SWEETs putatively control sucrose accumulation in sweet sorghum stems 19 .…”

Section: Discussionmentioning

confidence: 97%

Genome-wide analyses of SWEET family proteins reveal involvement in fruit development and abiotic/biotic stress responses in banana

Miao

Sun

Liu

et al. 2017

Sci Rep

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Sugars Will Eventually be Exported Transporters (SWEET) are a novel type of sugar transporter that plays crucial roles in multiple biological processes. From banana, for the first time, 25 SWEET genes which could be classified into four subfamilies were identified. Majority of MaSWEETs in each subfamily shared similar gene structures and conserved motifs. Comprehensive transcriptomic analysis of two banana genotypes revealed differential expression patterns of MaSWEETs in different tissues, at various stages of fruit development and ripening, and in response to abiotic and biotic stresses. More than 80% MaSWEETs were highly expressed in BaXi Jiao (BX, Musa acuminata AAA group, cv. Cavendish), in sharp contrast to Fen Jiao (FJ, M. acuminata AAB group) when pseudostem was first emerged. However, MaSWEETs in FJ showed elevated expression under cold, drought, salt, and fungal disease stresses, but not in BX. Interaction networks and co-expression assays further revealed that MaSWEET-mediated networks participate in fruit development signaling and abiotic/biotic stresses, which was strongly activated during early stage of fruit development in BX. This study provides new insights into the complex transcriptional regulation of SWEETs, as well as numerous candidate genes that promote early sugar transport to improve fruit quality and enhance stress resistance in banana.

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Section: Discussionmentioning

confidence: 97%

Genome-wide analyses of SWEET family proteins reveal involvement in fruit development and abiotic/biotic stress responses in banana

Miao

Sun

Liu

et al. 2017

Sci Rep

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“…SWEET gene family in cotton underwent enlargement during the evolution SWEET genes family in A. thaliala (Chen et al 2010), rice (Chen et al 2012), tomato (Feng et al 2015), Soybean (Patil et al 2015) and cucumber (Hu et al 2017) have been systematically analyzed. In this study, we performed a comprehensive investigation and analysis of SWEET genes from four cotton species, 22, 31, 55 and 60 SWEET genes were identified from G. arboreum, G. raimondii, G. hirsutum, and G. barbadense, respectively.…”

Section: Discussionmentioning

confidence: 99%

“…GhSWEET1a_At/Dt, GhSWEET2a_At/Dt, GhSWEET5_At/ Dt,GhSWEET7a_At/Dt, GhSWEET9_At/Dt, GhSWEET15-c_At/Dt highly expressed in floral organs, indicating different members of the GhSWEETs family in cotton expressed in different parts of the flower and in different developmental stages. AtSWEET1/4/5/7/8, AtSWEET13/14/ 15 have a relatively high level of expression in floral organs of Arabidopsis (Feng et al 2015;Engel et al 2005;47 Wellmer et al 2006). OsSWEET1a/2a/3a/4/5/15 in rice also showed relatively high expression levels at different developmental stages of flowers and panicles (Feng et al 2015).…”

Section: Expression and Putative Functions Of Sweetsmentioning

confidence: 99%

“…AtSWEET1/4/5/7/8, AtSWEET13/14/ 15 have a relatively high level of expression in floral organs of Arabidopsis (Feng et al 2015;Engel et al 2005;47 Wellmer et al 2006). OsSWEET1a/2a/3a/4/5/15 in rice also showed relatively high expression levels at different developmental stages of flowers and panicles (Feng et al 2015). This shows that SWEETs play a universal role in plant reproductive development.…”

Section: Expression and Putative Functions Of Sweetsmentioning

confidence: 99%

“…SWEET shows the function of bidirectional reversible transport of sugar, and promotes the diffusion of sucrose to the apoplast pathway through transmembrane across the gradient of concentration on cell efflux (Baker et al 2012;Lin et al 2014;Eom et al 2015). Since SWEET was first discovered using Forster resonance energy transfer (FRET) by optical glucose sensors (Chen et al 2010), SWEET family members have been identified by genome-wide analyses in different plant species, such as Arabidopsis (Chen et al 2010), rice (Yuan and Wang 2013), tomato (Feng et al 2015), soybean (Patil et al 2015) and cucumber (Hu et al 2017).…”

Section: Introductionmentioning

confidence: 99%

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A genome-wide analysis of SWEET gene family in cotton and their expressions under different stresses

et al. 2018

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Background: The SWEET (Sugars will eventually be exported transporters) gene family plays multiple roles in plant physiological activities and development process. It participates in reproductive development and in the process of sugar transport and absorption, plant senescence and stress responses and plant-pathogen interaction. However, thecomprehensive analysis of SWEET genes has not been reported in cotton.

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Tomato locule number and fruit size controlled by natural alleles of lc and fas

et al. 2019

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Improving yield by increasing the size of produce is an important selection criterion during the domestication of fruit and vegetable crops. Genes controlling meristem organization and organ formation work in concert to regulate the size of reproductive organs. In tomato, lc and fas control locule number, which often leads to enlarged fruits compared to the wild progenitors. LC is encoded by the tomato ortholog of WUSCHEL ( WUS ), whereas FAS is encoded by the tomato ortholog of CLAVATA 3 ( CLV 3). The critical role of the WUS ‐ CLV 3 feedback loop in meristem organization has been demonstrated in several plant species. We show that mutant alleles for both loci in tomato led to an expansion of the Sl WUS expression domain in young floral buds 2–3 days after initiation. Single and double mutant alleles of lc and fas maintain higher Sl WUS expression during the development of the carpel primordia in the floral bud. This augmentation and altered spatial expression of Sl WUS provided a mechanistic basis for the formation of multilocular and large fruits. Our results indicated that lc and fas are gain‐of‐function and partially loss‐of‐function alleles, respectively, while both mutations positively affect the size of tomato floral meristems. In addition, expression profiling showed that lc and fas affected the expression of several genes in biological processes including those involved in meristem/flower development, patterning, microtubule binding activity, and sterol biosynthesis. Several differentially expressed genes co‐expressed with Sl WUS have been identified, and they are enriched for functions in meristem regulation. Our results provide new insights into the transcriptional regulation of genes that modulate meristem maintenance and floral organ determinacy in tomato.

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Genome-wide identification, phylogeny, and expression analysis of the SWEET gene family in tomato

Cited by 137 publications

References 45 publications

Genome-wide analyses of SWEET family proteins reveal involvement in fruit development and abiotic/biotic stress responses in banana

Genome-wide analyses of SWEET family proteins reveal involvement in fruit development and abiotic/biotic stress responses in banana

A genome-wide analysis of SWEET gene family in cotton and their expressions under different stresses

Tomato locule number and fruit size controlled by natural alleles of lc and fas

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