Protect Third Pole's fragile ecosystem

Liu, Jie; Milne, Richard I.; Cadotte, Marc W.; Wu, Zeng-Yuan; Provan, Jim; Zhu, Guang; Gao, Lian‐Ming; D, Li

doi:10.1126/science.aaw0443

Cited by 88 publications

(42 citation statements)

References 12 publications

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“…Glaciers in the eastern Himalaya, for example, account for an estimated 14.5% of the worldwide total, of which a quarter has been lost since 1970 [20], due largely to a global warming 2x greater than average [2]. Cumulative impacts are recorded as increasing precipitation, decreasing glacial surface area, diminishing snow cover, expanding glacial lakes, and loss of permafrost [21].…”

Section: Contemporary Significancementioning

confidence: 99%

“…cryptic intraspecific divisions and undescribed species). Regional collaborations that extend across national borders are needed to mitigate climate-change impacts, and to foster cooperative cross-border conservation strategies [21]. Such a regional mandate requires a comprehensive understanding of extant biodiversity, to include inter-specific delineations and the nature by which these juxtapose with both geographical and political boundaries.…”

Section: Contemporary Significancementioning

confidence: 99%

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The Himalayan Uplift and the Evolution of Aquatic Biodiversity Across Asia: Snowtrout (Cyprininae: Schizothorax) as a Test Case

Regmi

Douglas

Edds

et al. 2020

Preprint

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The Himalayan uplift, a tectonic event of global importance, seemingly disseminated aquatic biodiversity broadly across Asia. But surprisingly, this hypothesis has yet to be tested. We do so herein by sequencing 1,140 base-pair of mtDNA cytochrome-b for 72 tetraploid Nepalese/Bhutanese Snowtrout (Schizothorax spp.), combining those data with 67 GENBANK sequences (59 ingroup/8 outgroup), then reconstructing phylogenetic relationships using maximum likelihood/ Bayesian analyses. Results indicate Snowtrout originated in Central Asia, dispersed across the Qinghai-Tibetan Plateau (QTP), then into Bhutan via south-flowing tributaries of the east-flowing Yarlung-Tsangpo River (YLTR). The headwaters of five large Asian rivers provided dispersal corridors into southeast Asia. South of the Himalaya, the YLTR transitions into a westward-flowing Brahmaputra River that facilitated successive colonization of Himalayan drainages: First Bhutan, then Nepal, followed by far-western drainages subsequently captured by the Indus River. We found greater species-divergences across rather than within-basins, implicating vicariant evolution as a driver. The Himalaya is a component of the third-pole [largest (but rapidly shrinking) glacial reservoir outside the Arctic/Antarctic]. Its unique aquatic biodiversity must not only be recognized (as herein) but also conserved through broad, trans-national collaborations. Our results effectively contrast phylogeography with taxonomy as a necessary first step in this process.

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Section: Contemporary Significancementioning

confidence: 99%

Section: Contemporary Significancementioning

confidence: 99%

The Himalayan Uplift and the Evolution of Aquatic Biodiversity Across Asia: Snowtrout (Cyprininae: Schizothorax) as a Test Case

Regmi

Douglas

Edds

et al. 2020

Preprint

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“…To better document, understand and conserve China’s biological heritage, Chinese scientists have conducted a series of initiatives to facilitate the understanding and conservation of plant diversity, particularly over the past twenty years. These range from baseline, floristic surveys to long-term monitoring studies that document dynamic patterns of biodiversity with a specific focus on Southwest China and the Qinghai-Tibet Plateau, where many ecosystems are being degraded as a result of human activities and global warming (Liu et al 2018). Indeed, much action is urgently needed to mitigate the effect of human disturbance and climate change in these hotspots and elsewhere in China.…”

mentioning

confidence: 99%

China’s biodiversity hotspots revisited: A treasure chest for plants

Cai

Zhang

et al. 2019

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“…Aneuploidy is one of the characteristics features of Brassicavegetables. In our previous study, we systematically analyzed the cytological features of the Yunnan and QTP environments which showed the absence of aneuploidy among the studied landraces [24]. We followed well-established protocol to achieve precision in our flow cytometric examination of GS.…”

Section: Variation In Gsmentioning

confidence: 99%

“…For example, the knowledge of domestication is still in the immature stage for crops of the QTP [23]. This region witnessed massive climatic disturbances during the past 50 million years [24]. Forests were transformed into grasslands and deserts due to formation of a dry, cool, and windy climate [25].…”

mentioning

confidence: 99%

Genome Size Unaffected by Variation in Morphological Traits, Temperature, and Precipitation in Turnip

et al. 2019

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Genome size (GS) was proposed as proxy for gross phenotypic and environmental changes in plants. GS organismal complexity is an enigma in evolutionary biology. While studies pertaining to intraspecific GS variation are abundant, literatures reporting the adaptive significance of GS are largelymissing. During food shortage, Brassica rapa var. rapa (turnip) is used as food and fodder for sustaining the livelihood of residents in the Qinghai Tibetan Plateau (QTP), which is also known as “the roof of the world”. Thus, climatic extremities make this region a natural environment to test adaptive significance of GS variation in turnip landraces. Therefore, from the QTP and its adjacent regions (the Hengduanshan and the Himalayas), we investigated adaptive evolution of GS in turnip landraces. Tuber diameter of turnip landraces was found to be significantly correlated with most of the environmental factors. GS was also shown not to be associated with morphological traits, temperature, and precipitation. Moreover, principal component analyses based on the whole dataset trisected the landraces into three distinct populations based on landrace usage—Hengduanshan, QTP, and the Himalayas. Nonetheless, our cumulative dataset showed evidence of adaptation of turnip landrace to different environments throughnonassociated genomic and phenomic plasticity.

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Protect Third Pole's fragile ecosystem

Cited by 88 publications

References 12 publications

The Himalayan Uplift and the Evolution of Aquatic Biodiversity Across Asia: Snowtrout (Cyprininae: Schizothorax) as a Test Case

The Himalayan Uplift and the Evolution of Aquatic Biodiversity Across Asia: Snowtrout (Cyprininae: Schizothorax) as a Test Case

China’s biodiversity hotspots revisited: A treasure chest for plants

Genome Size Unaffected by Variation in Morphological Traits, Temperature, and Precipitation in Turnip

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