The Dormancy Marker<i>DRM1/ARP</i>Associated with Dormancy but a Broader Role<i>In Planta</i>

Rae, Georgina M.; David, Karine; Wood, Marion

doi:10.1155/2013/632524

Cited by 36 publications

(25 citation statements)

References 62 publications

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“…In the ME2 module, the presence of genes controlling owering concurs with the concept of environmentally controlled pleiotropic role of owering in dormancy [76]. Also we found DORMANCY MAKER 1 (DRM1, Solyc03g006360.3.1), a auxin-regulated gene used as a marker of bud dormancy but not in Arabidopsis seed [77]. The GRAS domain of PROCERA, the only tomato DELLA gene, was also found to have a pleiotropic effect on dormancy and longevity [22].…”

Section: Dormancy and Longevity Might Be Controlled By Pleiotropic Husupporting

confidence: 79%

Gene co-expression analysis of tomato seed maturation reveals tissue-specific regulatory networks and hubs associated with the acquisition of desiccation tolerance and seed vigour

Bizouerne

Buitink

Ly-Vu

et al. 2020

Preprint

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Background During maturation seeds acquire several physiological traits to enable them to survive drying and disseminate the species. Few studies have addressed the regulatory networks controlling acquisition of these traits at the tissue level particularly in endospermic seeds such as tomato, which matures in a fully hydrated environment and does not undergo maturation drying. Using temporal RNA-seq analyses of the different seed tissues during maturation, gene network and trait-based correlations were used to explore the transcriptome signatures associated with desiccation tolerance, longevity, germination under water stress and dormancy. Results During maturation, 15,173 differentially expressed genes were detected, forming a gene network representing 21 expression modules, with 3 being specific to seed coat and embryo and 5 to the endosperm. A gene-trait significance measure identified a common gene module between endosperm and embryo associated with desiccation tolerance and conserved with non-endospermic seeds. In addition to genes involved in protection such LEA and HSP and ABA response, the module included antioxidant and repair genes. Dormancy was released concomitantly with increase in longevity throughout fruit ripening until 14 days after the red fruit stage. This was paralleled by an increase in SlDOG1-2 and PROCERA transcripts. The progressive increase in seed vigour was captured by three gene modules, one in common between embryo and endosperm and two tissue-specific. The common module was enriched with genes associated with mRNA processing in chloroplast and mitochondria (including penta- and tetratricopeptide repeat-containing proteins) and post-transcriptional regulation, as well several flowering genes. The embryo-specific module contained homologues of ABI4 and CHOTTO1 as hub genes associated with seed vigour, whereas the endosperm-specific module revealed a diverse set of processes that were related to genome stability, defence against pathogens and ABA/GA response genes. Conclusion The spatio-temporal co-expression atlas of seed maturation will serve as a valuable resource for the in-depth understanding of the dynamics of gene expression associated with the acquisition of seed vigour at the tissue level.

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Section: Dormancy and Longevity Might Be Controlled By Pleiotropic Husupporting

confidence: 79%

Gene co-expression analysis of tomato seed maturation reveals tissue-specific regulatory networks and hubs associated with the acquisition of desiccation tolerance and seed vigour

Bizouerne

Buitink

Ly-Vu

et al. 2020

Preprint

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“…DORMANCY ASSOCIATED GENE (DRM) genes, encoding plant-specific proteins of an unknown function, have been considered as molecular markers for dormancy due to the tight association of their expression with dormancy in many plant species (Stafstrom et al, 1998;Kebrom et al, 2006;Rae et al, 2013). Expression of the four DRM genes of rice (OsDRM1; Os03g0342900, OsDRM2; Os08g0453200, OsDRM3; Os09g0437500 and OsDRM4; Os11g0671000) was significantly enhanced in the axillary buds in WT plants, but their expression levels did not change significantly in d10-2 buds between P5.5 and P6.0 stages (Figure 4a).…”

Section: Induction Of Dormancy Associated Gene In the Dormant Budsmentioning

confidence: 99%

Developmental analysis of the early steps in strigolactone‐mediated axillary bud dormancy in rice

et al. 2019

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SummaryBy contrast with rapid progress in understanding the mechanisms of biosynthesis and signaling of strigolactone (SL), mechanisms by which SL inhibits axillary bud outgrowth are less well understood. We established a rice (Oryza sativa L.) hydroponic culture system to observe axillary buds at the critical point when the buds enter the dormant state. In situ hybridization analysis indicated that cell division stops in the leaf primordia of the buds entering dormancy. We compared transcriptomes in the axillary buds isolated by laser capture microdissection before and after entering the dormant state and identified genes that are specifically upregulated or downregulated in dormant buds respectively, in SL‐mediated axillary bud dormancy. Typically, cell cycle genes and ribosomal genes are included among the active genes while abscisic acid (ABA)‐inducible genes are among the dormant genes. Application of ABA to the hydroponic culture suppressed the growth of axillary buds of SL mutants to the same level as wild‐type (WT) buds. Tiller number was decreased in the transgenic lines overexpressing OsNCED1, the gene that encodes ABA biosynthesis enzyme. These results indicated that the main site of SL function is the leaf primordia in the axillary bud and that ABA is involved in SL‐mediated axillary bud dormancy.

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“…MAX2 also functions in light signalling (Shen et al 2007). The DRM1 gene is a commonly used marker for bud dormancy first identified in pea, however, its function is unknown (Stafstrom et al 1998;Rae et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Photosynthetic leaf area modulates tiller bud outgrowth in sorghum

Kebrom

Mullet

2015

Plant Cell & Environment

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Shoot branches or tillers develop from axillary buds. The dormancy versus outgrowth fates of buds depends on genetic, environmental and hormonal signals. Defoliation inhibits bud outgrowth indicating the role of leaf-derived metabolic factors such as sucrose in bud outgrowth. In this study, the sensitivity of bud outgrowth to selective defoliation was investigated. At 6 d after planting (6 DAP), the first two leaves of sorghum were fully expanded and the third was partially emerged. Therefore, the leaves were selectively defoliated at 6 DAP and the length of the bud in the first leaf axil was measured at 8 DAP. Bud outgrowth was inhibited by defoliation of only 2 cm from the tip of the second leaf blade. The expression of dormancy and sucrose-starvation marker genes was up-regulated and cell cycle and sucrose-inducible genes was down-regulated during the first 24 h postdefoliation of the second leaf. At 48 h, the expression of these genes was similar to controls as the defoliated plant recovers. Our results demonstrate that small changes in photosynthetic leaf area affect the propensity of tiller buds for outgrowth. Therefore, variation in leaf area and photosynthetic activity should be included when integrating sucrose into models of shoot branching.

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The Dormancy MarkerDRM1/ARPAssociated with Dormancy but a Broader RoleIn Planta

Cited by 36 publications

References 62 publications

Gene co-expression analysis of tomato seed maturation reveals tissue-specific regulatory networks and hubs associated with the acquisition of desiccation tolerance and seed vigour

Gene co-expression analysis of tomato seed maturation reveals tissue-specific regulatory networks and hubs associated with the acquisition of desiccation tolerance and seed vigour

Developmental analysis of the early steps in strigolactone‐mediated axillary bud dormancy in rice

Photosynthetic leaf area modulates tiller bud outgrowth in sorghum

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