Integrating fossil and extant plant communities to calibrate paleoelevation of the Qinghai–Tibet Plateau

Journal of Systematics and Evolution, Journal Year: 2025, Volume and Issue: 63(1), P. 25 - 38

Published: Jan. 1, 2025

Abstract The formation of the Qinghai–Tibet Plateau has long been debated, despite various proxies used to estimate its paleoelevation. Here, we introduce a novel method calibrate paleoelevation by comparing fossil and extant plant communities in Plateau. Our estimation confirms that uplift plateau was an episodic heterochronous process. Specifically, Lhasa Terrane already elevated 1 km before initial India–Asia collision. During first orogenic stage, Qiangtang rose faster than Terrane, attaining 3 late Eocene. In second underwent rapid uplift, reaching Oligocene. By Middle Miocene, both terranes had achieved elevation 4 km. Himalaya at least 2 after Pliocene. biological knowledge‐based findings contradict previous geological evidence‐based reports, which posited reached 4–5 during We provide new perspective on plateau′s history based evidence, potential reconcile confusion arising from contradictory proxies.

Language: Английский

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Phylogenomics of Aralia sect. Aralia (Araliaceae): Signals of hybridization and insights into its species delimitations and intercontinental biogeography

Molecular Phylogenetics and Evolution, Journal Year: 2023, Volume and Issue: 181, P. 107727 - 107727

Published: Feb. 7, 2023

Language: Английский

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Target sequence capture data shed light on the deeper evolutionary relationships of subgenus Chamaecerasus in Lonicera (Caprifoliaceae)

Molecular Phylogenetics and Evolution, Journal Year: 2023, Volume and Issue: 184, P. 107808 - 107808

Published: May 6, 2023

Language: Английский

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Uplift history and biological evolution of the Himalaya (I)

Journal of Systematics and Evolution, Journal Year: 2025, Volume and Issue: 63(1), P. 1 - 4

Published: Jan. 1, 2025

Language: Английский

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Adaptive phenylpropanoid and flavonoid biosynthesis pathways of <i>Agriophyllum squarrosum</i> on the Qinghai-Xizang Plateau

Medicinal Plant Biology, Journal Year: 2025, Volume and Issue: 4(1), P. 0 - 0

Published: Jan. 1, 2025

Language: Английский

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Predicting the Potential Distribution of Lagotis Medicinal Plants on the Qinghai‐Xizang Plateau, With a Maximum Entropy Model

Ecology and Evolution, Journal Year: 2025, Volume and Issue: 15(4)

Published: April 1, 2025

ABSTRACT Lagotis is a Tibetan medicine with high medicinal and research value in the Qinghai‐Xizang Plateau region. Predicting its potential suitable areas can provide important references for protection of . This study investigated collected 769 site data six species 28 environmental factor data, used maximum entropy model (MaxEnt) to simulate distribution under three climate scenarios (RCP2.6, RCP6.0, RCP8.5) 2050s 2070s. The results showed that: (1) AUC values training dataset were all > 0.94, indicating that predictions accurate. (2) Altitude (alt), isothermality (bio3), average annual precipitation (bio12) main factors affecting geographical (3) Under current conditions, increase greenhouse gas emission concentration, genus plants are primarily located eastern, central, southern parts Plateau. (4) Compared present period, integra , angustibracteata ramalana area will expand future. suitability macrosiphon shows an increasing trend. moderate brachystachya decreasing, while increasing. In contrast, brevituba decreased greatly. (5) found survival high‐altitude, low‐temperature areas. findings basis cultivation breeding Plateau, migration protection, construction nature reserve communities.

Language: Английский

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Implementation of pollution source assessment and treatment strategy for plateau railway construction in China: an AHP-cloud model approach

Environmental Monitoring and Assessment, Journal Year: 2023, Volume and Issue: 195(6)

Published: May 29, 2023

Language: Английский

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Risk assessment of mycotoxins, the identification and environmental influence on toxin-producing ability of Alternaria alternate in the main Tibetan Plateau Triticeae crops

Frontiers in Microbiology, Journal Year: 2023, Volume and Issue: 13

Published: Feb. 7, 2023

In order to find out the contamination of mycotoxins in Triticeae crops Qinghai-Tibet Plateau, a total 153 crop fruits were collected as target samples, and 22 tested. High detection rate was found Alternaria mycotoxins, including tentoxin (TEN), tenuazonic acid (TEA) alternariol (AOH) toxins. To further clarify production rules mycotoxins. A number 9 high yield toxic strains selected from 65 bacterial gene sequences each determined. The nine alternate cultured under specific pH culture medium, temperature ultraviolet (UV) irradiation, their growth toxicity analyzed. results showed that capacity most A. increased with increase environment decreased UV irradiation. However, some toxins did not meet this principle, or even met principle relativity. experiments, five detected positive, which TEN, AOH, monomethyl ether (AME), TEA, (ALT). altenusin (ALS) toxin metabolites strains. It indicated AME, ALT should be particularly valued future risk assessments. This finding provided comprehensive information Tibetan Plateau crops, it pointed direction food crops’ quality control.

Language: Английский

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Biogeographic Patterns and Richness of the Meconopsis Species and Their Influence Factors across the Pan-Himalaya and Adjacent Regions

Diversity, Journal Year: 2022, Volume and Issue: 14(8), P. 661 - 661

Published: Aug. 16, 2022

Understanding the potential habitat of Meconopsis, their species richness distribution patterns, and influencing factors are critical for conservation rational exploitation this valuable resource. In study, we applied MaxEnt model to predict distribution, mapped pattern richness, analyzed variation along environmental gradients. Finally, calculated landscape fragmentation indices between five subregions. Our results found that: (1) medium- high-suitable habitats Meconopsis were mainly distributed in central eastern Himalaya, Hengduan Mountains, southeast edge plateau platform, with suitable ranged from 3200 m 4300 m, whose most important factor is precipitation warmest quarter; (2) showed a hump gradients except longitude that an increasing trend, concentrated south southeast; (3) subregions descending order richness: central, eastern, western Himalaya; highest lowest degree Himalaya respectively. study provides theoretical background sustainable wild.

Language: Английский

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Collections‐based systematics in the new age of discovery: Celebrating the legacy and life of Professor Wen‐Tsai Wang

Journal of Systematics and Evolution, Journal Year: 2023, Volume and Issue: 61(1), P. 1 - 10

Published: Jan. 1, 2023

Professor Wen-Tsai Wang (王文采, June 5, 1926–November 16, 2022) was an academician of the Chinese Academy Sciences (CAS) and a legendary plant taxonomist at Institute Botany CAS (Fig. 1). Herein, we organize virtual special issue in Journal Systematics Evolution (JSE) to celebrate legacy life Wang, who leading China made important contributions toward advancing understanding flora China, biogeography eastern Asia, biodiversity research vast Hengduan Mountains. He served as Editor-in-Chief Acta Phytotaxonomica Sinica (now JSE) for 6 years from 1982 1988, trained several generations taxonomists (Li, 2001). graduated Beijing Normal University 1949 joined Plant Taxonomy Botany), CAS, assistant 1950. promoted professor rank 1982, elected 1993. had long, productive career Herbarium Botany, 2), published more than 250 taxonomic floristic papers monographs 3). described 28 new genera, 303 taxa tribal, sectional, series ranks, ca. 1370 species, 242 combinations. one most participants compilation enormous 8-volume Iconographia Cormophytorum Sinicorum (Institute 1972–1983) 4). first assigned be charge preparation book 1965 set foundation preparing Flora Reipublicae Popularis Sinicae (FRPS) help with identifications China. The included 11 000 higher species brief descriptions on morphology, ecology, distribution, uses, 9082 which line drawings. contributed treatments families this series, including Boraginaceae, Geraniaceae, Gesneriaceae, Papaveraceae, Proteaceae, Ranunculaceae, Urticaceae, Vitaceae. This has been widely used by scientific institutions, colleges, universities train botanists young students biology throughout became botanical classics authority difficult Rubiaceae, Vitaceae, through his extensive herbarium field 5). Sinicae, treating part Ranunculaceae (Aconitum, Delphinium, Anemone, small genera) (Wang, 1979, 1980), Gesneriaceae 1990), Boraginaceae (Kung & 1989; 1993), Urticaceae (Wang Chen, 1995; 2014, 2016). retired 1986, but he continued Gesneriaceae. From early 1990s 2000s, visited major herbaria abroad Europe United States, BM, E, G, GH, K, LE, MHA, MO, NY, P, S, UPS, US. 77 after turned 85 old, only stopped quite recently spring 2021 (e.g., 1993, 1994, 2000, 2002, 2003, 2004, 2006, 2016, 2018, 2019, 2020, 2021). also collaborative project treated (in collaboration De-Zhi Fu Liang-Qian Li) Kai-Yu Pan Zhen-Yu Li). In 1996, States National (US) Smithsonian Institution, Gray Harvard (GH), New York Botanical Garden (NY), Missouri (MO). During trip, completed revision Dr. Laurence E. Skog (Smithsonian Institution) et al., 1998). Beyond studies, distribution patterns migration routes Eastern Asiatic Region 1989, 1992). These have inspired many studies Asian (Wen 2014; Nie 2016; Liu 2021; Mao Zhang 2022). two volumes vascular plants Mountains that edited 1994) documented all collected region based specimens created western collectors. achievement time when collections were not easily available online or digitized. completion systematic, biogeographic, conservation work evolutionary hotspot Asia. numerous workers taxonomy courses universities, institutes 6). always humble, modest, approachable, taught younger colleagues informally PE 7). well known training such Fu, Li, other 8). editorial board 1973. May 1981, Deputy Editor-in-Chief, chaired standing meeting reach some agreements journal, publishing significant academic value innovation, soliciting high-quality manuscripts, adopting strict peer-review process, implemented journal until today. JSE leaving position, serve various ways. April 1995, wrote office suggest type should deposited recognized is committed long-term maintenance. helped revise approve Latin description diagnosis authors even 80s. received awards honors, prestigious First Prize Natural Science Award twice 1987 2009) (Figs. 9, 10), Qiu Shi Technologies Foundation Technology Achievement Ho Leung Lee 1997. named Lifetime Honorary CAS. Commemorative Badge Celebrating 70th Anniversary Founding People′s Republic government. To honor Wang′s taxonomy, floristics, efforts next-generation taxonomists, herein, selected 16 last 3 collections-based systematics legacy. articles showcase advances biogeography, floristics age discovery 2015, 2017; Funk, 2018). dedicated We present discuss four emphasize diversity assembly Hu al. (2020) provided updated phylogenetic tree plants, generating mega-phylogenetic 15 092 tips 14 878 13 663 (44.0%) 2953 genera (95.7%) are native tremendous framework flora, study identified hotspots angiosperms both genus levels; hence, paper great significance utilizing information diversity. Xie (2021) reviewed analyzed data Species Catalogue China: Volume 1: Plants (SCCP), comprehensive inventory plants. database freely accessible at: http://www.sp2000.org.cn/, includes entries 478 families, 4052 41 687 specific infraspecific taxa. origin Qinghai-Tibetan Plateau (QTP), well-known discussed issues circumscribing naming QTP, QTP uplifts, dating molecular trees, processes diversification high-altitude adaptation. Low tropical Typhonium s.s. Araceae reconstruct biogeographic paleotropical flora. inferred originated Indochina during early–middle Miocene subsequent within may triggered intensification monsoons around middle Miocene. provides hypotheses studying evolution elements. phylogenetics become classification 2017). Phylogenetic progressed tremendously decade additional sampling characteristics genomics) taxa, especially team (Zimmer Wen, 2015). five systematics, realm classification. Soreng (2022) worldwide large economically grass family Poaceae. revised 12 subfamilies, 7 supertribes, 54 tribes, 5 supersubtribes, 109 subtribes, list number each 787 accepted setting investigations family. another landmark paper, Larridon phylogenomic target enrichment sequences conjunction morphology traditional sources propose Cyperaceae tribal rearrangements re-circumscriptions. Roalson re-evaluated infrageneric taxonomically challenging Carex using organizing principles will roadmap ongoing progress classification, reflect current state our knowledge while being made. hybrid organized into six subgenera, then classified 62 sections plus 49 informal groups. data, network approaches infer phylogeny Caprifoliaceae. They integrated evidence divergence times Zabelioideae subfamily Jiang report case focused assessment monotypic Pseudobartsia yunnanensis (Orobanchaceae), single specimen. obtained chloroplast genome nuclear ribosome sequence specimen 1940, analyses Orobanchaceae plastomes support reinstatement Pseudobartsia. showcases importance today′s research. Two insights delimitations (Li Lin One goals discover describe species; yet, delimitation remained highly controversial due phenotypic plasticity, indistinguishable complex hybridizations (Wiens, 2007; Wen 2018; Hillis Li examined cryptic widespread Roscoea tibetica genotyping sequencing, morphological traits, models, simulating demographic history. Phylogenomic genetic structure inferences supported distinct lineages R. tibetica, discovered common garden observations, ecological models. Phylogenomic, morphological, hence recent contact likely occurred between lineages. However, plasticity heterogeneous environments convergence similar habitats complicated variational patterns. explored complex, Stewartia sinensis (Theaceae), showing continuum variations. phylogenomics, morphology. multispecies coalescent-based 572 orthologs anchored reciprocal (but sister) monophyly northern lineage (NL) southern (SL). Significant climatic niche differentiation detected NL SL populations, modeling further their separation. Morphometric suggested multiple traits. Hence, suggested: gemmata S. NL. highlight applying integrative approach assessing Asia Northern Hemisphere. Zhou sequenced 20 single-copy genes regions Paeonia Paeoniaceae document parents tetraploids. dated late Cretaceous diverged clades, woody herbaceous clades Oligocene survived Pan-Himalaya, where they migrated Northwestern America, Middle Europe. glacial interglacial cycles Pliocene Pleistocene polyploidy speciation allotetraploids autotetraploids. Xu karst endemic Primulina model identify areas Nanling north Guangdong northeast Guangxi southeast Yungui southwest Guangxi. categorical analysis neo- paleoendemism “museums” “cradles” deserve priority. Lu hypothesis Japan–East probably ancestral area cradle sects. Confertiflorae Molliculae. highlights geographic heterogeneity diversification. Dong utilized SNPs plastome explore Magnolia revealed cytonuclear discordances. Their hybridization events sect. Yulania, Magnolia. Dating three disjunctions tracing mid Eocene, temperate much later Miocene, supporting boreotropical (Nie 2008). Yao constructed history holly genus, Ilex (Aquifoliaceae). subtropical colonized South America c. 30 million ago (Ma), North 23 Ma, Australia 8 Africa 4 times. efficient seed dispersal mechanisms rapidly colonize suitable mesic areas. near-cosmopolitan reflected dynamic balance dispersal, diversification, extinction, long-distance 2013). achievements community. Finally, would like share what said about American friends Hayden Wetzel Washington, DC: “he delightful guest friend—gentle, direct, positive helpful. Almost every evening I came home prepared dinner (always same beef dish, fine me). When traveling week told me afterward gone house seemed lonely ate local restaurant. What sweet guy! A few later, Beijing, showed up my hotel morning took town, tired out afternoon. fond pleasant memories lovely man.”

Language: Английский

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