Plants, Free Full-Text
4.9 (75) In stock
Understanding how species adapt to extreme environments is an extension of the main goals of evolutionary biology. While alpine plants are an ideal system for investigating the genetic basis of high-altitude adaptation, genomic resources in these species are still limited. In the present study, we generated reference-level transcriptomic data of five Saussurea species through high-throughput sequencing and de novo assembly. Three of them are located in the highland of the Qinghai-Tibet Plateau (QTP), and the other two are close relatives distributed in the lowland. A series of comparative and evolutionary genomics analyses were conducted to explore the genetic signatures of adaptive evolution to high-altitude environments. Estimation of divergence time using single-copy orthologs revealed that Saussurea species diversified during the Miocene, a period with extensive tectonic movement and climatic fluctuation on the QTP. We characterized gene families specific to the alpine species, including genes involved in oxidoreductase activity, pectin catabolic process, lipid transport, and polysaccharide metabolic process, which may play important roles in defense of hypoxia and freezing temperatures of the QTP. Furthermore, in a phylogenetic context with the branch model, we identified hundreds of genes with signatures of positive selection. These genes are involved in DNA repair, membrane transport, response to UV-B and hypoxia, and reproductive processes, as well as some metabolic processes associated with nutrient intake, potentially responsible for Saussurea adaptation to the harsh environments of high altitude. Overall, our study provides valuable genomic resources for alpine species and gained helpful insights into the genomic basis of plants adapting to extreme environments.
Adding a Plant
Annual Plant Sale N.C. Cooperative Extension
Plants, Free Full-Text, Physiological Response of Miscanthus x giganteus to Plant Growth Regulators in Nutritionally Poor Soil, …
Plants, Free Full-Text
Garden of Dreams Greenhouses
The Independent Plant Nursery Guide
Get 1 Free Plant online at Nurserylive
Meet Plant Shop: A Free & Contemporary Starter Pack for Qubely Pro
Life Cycle Of A Plant Lesson and a Free Plant Printable - The
Plants, Free Full-Text
Plant text Vectors & Illustrations for Free Download
All About Plants Science Unit - FREE ACTIVITY — Keeping My Kiddo Busy
DIY Paper Plant (Free SVG) » SVG Designs For a Magical Woodland
Houseplant Fertilizer, Plant Food
Solved A bottle of water with temperature 70 F is placed
Answered: nomial and Rational Functions 22.…
Franco Silver Salmon (Coho) Caviar Low Salt 1.1 LB (0.5 KG) - CAVIARMAN GOURMET
Danby 4.5 cu. ft. Free-Standing Beverage Center in Stainless Steel
Answers - Reading 34 Introduction to Commodities and Commodity
- Mama Joggers, Woman's Sweats, Comfy Sweatpants, Joggers
- Black Womens Plus Size Active Side Panel Pocket Legging
- Goo Gone Pro-Power Spray Pump 16fl oz
- How to style Beyonce Ivy Park x Adidas? PT. 2 LOOKBOOK & Try-on HAUL
- Nannies Rejoice! Baby Socks That Don't Fall Off + 20% Off
- Samson Chest Binder-(S/M/L/XL/2XL/3XL/4XL)