Dongqin Dai's research while affiliated with Qujing Normal University and other places

... Sexual morph: Ascomata 246-285 µm high, 179-229 µm wide, immersed to semiimmersed, clustered, sometimes solitary, scattered, subglobose or ellipsoidal, dark brown to black, carbonaceous, uni-to bi-loculate, with indistinct ostiolate. Ostiolar neck central, Known host and distribution: China, Yunnan, Kunming, Songhua Dam Reservoir, on dead culms of Artemisia sp., HKAS 123192 (holotype) [73]. ...

... Thailand has a rich fungal diversity and numerous groups of fungi have been studied in Thailand , Karimi et al. 2023, which reveals the great potential of discovering new fungal taxa. Palm fungi have been intensively investigated over the world (Taylor & Hyde 2003, Liu et al. 2010, Mapook et al. 2020, Konta et al. 2020, Tian et al. 2022. Arecaceae are widely distributed in tropical and subtropical areas, and are highly diverse along ocean shorelines. ...

... The regions of internal transcribed spacer (ITS) and large subunit ribosomal RNA (LSU) were amplified using the primers ITS4/ITS5 and LR5/LROR [21,22]. The PCR condition of ITS and LSU was created using an initial denaturation step of 3 min at 94 • C, followed by 35 cycles of 30 s at 94 • C, 50 s at 55 • C, and 1 min at 72 • C and a final denaturation step of 10 min at 72 • C [23]. The partial RNA polymerase II subunit (rpb2) region was amplified using the primers fRPB2-5F and fRPB2-7cR [24]. ...

... Despite this, DSE colonisation in plants decreases when high temperature and drought phenomena occur simultaneously but does not lead to diversity loss [2]. Most studies on the interaction between DSEs and plants have been conducted in forest systems [2,[18][19][20][21][22]. 3 However, DSEs association in agriculture is becoming more relevant in the scientific sphere, particularly due to their increased tolerance under stress conditions [11], although studies on horticultural or extensive farming continue to be scarce. ...

... By contrast, we detected significant IBE patterns in Q. aqu-East and Q. spi-West lineage ( Table 4 and Supplementary Figure 5, Supplementary Tables 5, 6), where the extreme environmental conditions on the plateau might be regarded as a significant climatic barrier, rather than a geographic barrier. It also suggests that geographic isolation may cause interspecific and intraspecific differentiation; adaptation to local climate and environmental factors reinforces this differentiation and gradually forms this significant IBE pattern (Gao et al., 2021). Accordingly, GDM and RDA both suggesting temperature annual range (bio07) and precipitation during June (prec06) were the most significant environmental factor driving genetic variation in Q. aqu-East and Q. spi-West lineage (Figure 6, Table 5 and Supplementary Figure 4, Supplementary Table 6), respectively. ...

... In P. mongolica, genes related to root growth, such as ACT2 [79]; drought stress, such as KPNB1 [80]; and vascular development, such as ERF018 [81], were found to aid in adaptation to arid environments in sandy areas. With P. meyeri as the reference, genes related to stomatal regulation, such as KIN10A [82]; drought or cold stress, such as SRP, RGGA , and HXK2 [83][84][85]; and vascular plant seed germination and fruit ripening, such as PME [86], were found in P. mongolica, indicating that these selectively swept genes enable better adaptation to sandy environments and contributed to its evolution into an independent species within the genus Picea. Other researchers have also identified genes related to stomatal regulation, flowering (in angiosperms), and stress resistance among the genes showing evidence of selective sweeps in P. asperata, P. crassifolia, P. wilsonii, and P. koraiensis [58,87,88]. ...

... The binding of CBFs to the CRT/DRE motif leads to the activation of downstream cold-responsive genes [80]. The MKK5 and other entities phosphorylate the cold regulatory genes at different response levels in the MEKK1-MKK4/5-MPK3/6 cascade ( Figure 3) [81]. The MKK5 has been shown to play significant roles in the phosphorylation of MPK3 and MPK6, negative regulators of cold stress through phosphorylation of the ICE1, thereby inhibiting the downstream expression of the CBF [78,82]. ...

... In citrus, a series of physiological changes occur when the plants are exposed to low temperatures, which includes an increase in unsaturated fatty acids, a decrease in enzymatic and photosynthetic activity, disruption in chloroplast structure, and ion leakage [8,11]. During freezing stress, the fluidity of the cell membrane decreases due to a higher amount of unsaturated fatty acids in membrane lipids, which alters the ratio and composition of lipids to proteins [12]. The detrimental effect of freezing is the formation of ice, which first forms in the intercellular spaces of the plant, reduces the water potential, and causes dehydration, which further leads to electrolyte leakage [13]. ...

... To further test our results, we used alignments of 1,366 singleor low-copy nuclear sequences and entire plastid genomes to infer taxon relationships (Fig. 3B). The nuclear and plastid topologies contradicted each other as also found in earlier studies, albeit with different taxon and gene sampling (24,(34)(35)(36). In addition, we conducted phylogenetic network analyses, using the single-or low-copy gene sets, which failed to reveal the repeated ancient hybridizations reflected by the subgenome trees analyzed with the WGDI toolkit (SI Appendix, Fig. S11). ...

... However, species in the Amorphophallus genus have large genomes , so reduced-representation library sequencing is a more effective technology for such taxa than whole-genome sequencing (Gargiulo et al., 2021;Tao et al., 2021). Restriction-site-associated DNA sequencing (RAD-seq) has been employed in population genetic studies of several Amorphophallus species, such as A. paeoniifolius and A. albus (Gao et al., 2017. While previous research focuses primarily on the genomic variation of cultivated resources of Amorphophallus, the evolutionary history of wild populations has not been investigated. ...