We consider the relationship between the factors responsible for the general biology of aging and those that specifically influence the aging of the reproductive system. To understand this relationship it is necessary to be clear about the evolutionary forces acting on both sets of factors. Only in this way can the correct causal connections be established. Of particular significance is the exi...

Fluctuations in early developmental conditions can cause changes in growth trajectories that subsequently affect the adult phenotype. Here, we investigated whether compensatory growth has long-term consequences for patterns of senescence.Using three-spined sticklebacks (Gasterosteus aculeatus), we show that a brief period of dietary manipulation in early life affected skeletal growth rate not o...

Leaf senescence is a very important trait that limits yield and biomass accumulation of agronomic crops and reduces post-harvest performance and the nutritional value of horticultural crops. Significant advance in physiological and molecular understanding of leaf senescence has made it possible to devise ways of manipulating leaf senescence for agricultural improvement. There are three major st...

Longitudinal studies of senescence accumulate rapidly from natural populations. However, it is largely unknown whether different fitness components senesce in parallel, how reproductive and survival senescence contribute to declines in reproductive value, and how large the fitness cost of senescence is (the difference between the observed reproductive value and the hypothetical reproductive val...

Abstract Oncogene-induced senescence provides a barrier against malignant transformation. However, it can also promote cancer through the secretion of plethora factors released by senescent cells, called associated secretory phenotype (SASP). We have previously shown that in proliferating nuclear lncRNA MIR31HG inhibits p16/CDKN2A expression interaction with polycomb repressor complexes and dur...

Salicylic acid (SA) plays an important role in regulating leaf senescence. However, the molecular mechanism of senescence safflower ( Carthamus tinctorius ) is still elusive. In this study, we found that bHLH transcription factor (TF) CtbHLH41 significantly delayed and inhibited expression senescence-related genes. order to explore how promotes senescence, carried out yeast two-hybrid screening...

Although leaf senescence results in a loss of photosynthetic carbon fixation, the senescence-dependent release of nutrients, especially of nitrogen, is important for the growth of young leaves and for reproduction. Environmental regulation of senescence is therefore a vital factor in the carbon and nitrogen economy of plants. Leaf senescence is a highly plastic trait that is affected by a range...

Wheat leaf non-sequential senescence at the late grain-filling stage involves the early senescence of younger flag leaves compared to that observed in older second leaves. On the other hand, sequential senescence involves leaf senescence that follows an age-related pattern, in which flag leaves are the latest to undergo senescence. The characteristics of sugar metabolism in two sequential senes...

Zoysia japonica is an important warm-season turfgrass used worldwide. The decreased aesthetic quality and functionality during leaf senescence hamper its further utilization. However, information about the transcriptional mechanism genes involved in Z. needs to be more extensive. Therefore, better understand japonica, we investigated integrated analysis of chlorophyll fluorescence test (JIP-tes...