Leaf stomatal and epidermal cell development: identification of putative quantitative trait loci in relation to elevated carbon dioxide concentration in poplar

Ferris, Rachel; Long, Lê Thanh; Bunn, S.M.; Robinson, Kathryn M.; Bradshaw, H. D.; Rae, Anne M.; Taylor, Gail

doi:10.1093/treephys/22.9.633

Cited by 81 publications

(73 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Given the increasing resolution of the genetic basis for these traits in model species (e.g. Ferris et al, 2002;Delgado et al, 2011), these traits can be made specific targets for breeding for higher g max and thereby for productivity. Other traits would also need to be targeted (e.g.…”

Section: Applying Equation 5 To Equation 4amentioning

confidence: 99%

The Developmental Basis of Stomatal Density and Flux

2016

View full text Add to dashboard Cite

Since the first published measurements of stomatal density by Johann Hedwig (1793) and Alexander von Humboldt (1798), the counting and measuring of stomata has been one of the most typical botanical activities, with an important role across fields of plant biology (Willmer and Fricker, 1996). Stomatal density (d) and size (s) are indicators of acclimation and adaptation to contrasting environments, and permit estimation of the theoretical anatomical maximum stomatal conductance (g max ; units: mol m 22 s 21

show abstract

Section: Applying Equation 5 To Equation 4amentioning

confidence: 99%

The Developmental Basis of Stomatal Density and Flux

2016

View full text Add to dashboard Cite

show abstract

“…Since we observed a higher number of proliferating cell patches on the abaxial leaf side where more stomates are formed (Ferris et al, 2002), we asked if the overproliferating cells originated from meristemoid mother cells (MMCs) that give rise to the stomate cell lineage. To address this question, we crossed RBRi plants with the ProTOO-MANY-MOUTHS (ProTMM):TMM-GFP (green fluorescent protein) reporter construct, which is expressed throughout the stomata lineage.…”

Section: Rbr Regulates Meristemoid Proliferation and Subsequent Stomamentioning

confidence: 99%

ArabidopsisRETINOBLASTOMA-RELATED Is Required for Stem Cell Maintenance, Cell Differentiation, and Lateral Organ Production

et al. 2010

View full text Add to dashboard Cite

Several genes involved in the regulation of postembryonic organ initiation and growth have been identified. However, it remains largely unclear how developmental cues connect to the cell cycle. RETINOBLASTOMA RELATED (RBR) is a plant homolog of the tumor suppressor Retinoblastoma (pRb), which is a key regulator of the cell cycle. Using inducible RNA interference (RNAi) against Arabidopsis thaliana RBR (RBRi), we reduced RBR expression levels at different stages of plant development. Conditional reduction or loss of RBR function disrupted cell division patterns, promoted context-dependent cell proliferation, and negatively influenced establishment of cell differentiation. Several lineages of toti-and pluripotent cells, including shoot apical meristem stem cells, meristemoid mother cells, and procambial cells, failed to produce appropriately differentiated cells. Meristem activity was altered, leading to a disruption of the CLAVATA-WUSCHEL feedback loop and inhibition of lateral organ formation. Release of RBR from RNAi downregulation restored meristem activity. Gene profiling analyses soon after RBRi induction revealed that a change in RBR homeostasis is perceived as a stress, even before genes regulated by RBR-E2F become deregulated. The results establish RBR as a key cell cycle regulator required for coordination of cell division, differentiation, and cell homeostasis. INTRODUCTIONRetinoblastoma (RB) was the first tumor suppressor gene identified in animals (Friend et al., 1986) and later was associated with cell cycle regulation, thus establishing pRb as a key regulator of cell proliferation. In animals, three members of the RB family of proteins (pRb, p107, and p130), also referred to as pocket proteins (Mulligan and Jacks, 1998), negatively regulate the G1-to-S phase transition during the cell cycle. It is now widely accepted that mitogenic signals activate several cyclin-dependent kinase (CDK)-cyclin complexes during progression through G1 to phosphorylate pRb, thereby releasing it from interactions with E2F/DP transcription factor complexes to facilitate S-phase entry (Weinberg, 1995). Subsequently, pRb was also found to regulate tissue-specific transcription factors that regulate cell differentiation, such as MyoD, which activates muscle-specific genes (De Falco et al., 2006). pRb also regulates germ cell proliferation, differentiation, and survival (Toppari et al., 2003) and is required for osteoblast, keratinocyte, and macrophage differentiation (Nead et al., 1998;Liu et al., 1999;Thomas et al., 2003). Together with the tumor suppressor p53, pRb regulates adipocyte differentiation and function (Hallenborg et al., 2009). The requirement for RB in cell differentiation therefore extends beyond regulation of cell cycle entry. For example, the loss of RB function in cardioblasts affects cell differentiation by modulating the activity of cardiogenic factors (Papadimou et al., 2005).RB-related genes, termed RETINOBLASTOMA-RELATED (RBR; Ach et al., 1997), are also found in monocots (Grafi et al., 1996;Xie et al...

show abstract

“…51 AGL16 is a member of the MADS box protein family, which mRNA is targeted for sequence-specific degradation by the microRNA miR824. Additionally several potential quantitative trait loci have been also identified in poplar 52,53 and thus it seems reasonable to assume that leaf traits may be robust enough to be developed as markers for accelerated breeding programs, offering another research approach to increase crop yield.…”

Section: Cross Talk Between Aba and The "Clock"mentioning

confidence: 99%