Скачать или смотреть Microbial Interactions and Expansions on Liquid Substrates (Lecture 3) by David Nelson

PROGRAM

FIFTH BANGALORE SCHOOL ON POPULATION GENETICS AND EVOLUTION (ONLINE)

ORGANIZERS: Deepa Agashe (NCBS, India) and Kavita Jain (JNCASR, India)

DATE: 17 January 2022 to 28 January 2022

VENUE: Online

No living organism escapes evolutionary change, and evolutionary biology thus connects all biological disciplines. To understand the processes driving evolution, we need a theoretical framework to predict and test evolutionary changes in populations. Population genetic theory provides this basic framework, integrating mathematical and statistical concepts with fundamental biological principles of genetic inheritance, selection, mutation, migration and random genetic drift. Population genetic models allow us to make quantitative predictions that can inform an experimentalist while designing new experiments, and give us a deeper understanding of how evolution works. This School will cover topics such as evolutionary rescue, mechanisms and dynamics of molecular evolution, microbial range expansions and the use of pedigrees in population genetics. For each topic, lectures will begin with basic concepts and end with recent advances in the field. A series of research seminars will also introduce participants to ongoing research in evolutionary biology in India.

CONTACT US: [email protected]
PROGRAM LINK: https://www.icts.res.in/program/popge...

Table of Contents (powered by https://videoken.com)
0:00:00 Start
0:00:15 Getting Started
0:01:04 Preface & References
0:04:36 In two dimensions, conventional Fisher waves easily traverse an array of obstacles
0:09:13 Stopping power of selective disadvantage barriers in two
0:20:39 Motivation: Life probably evolved first in a liquid environment
0:25:44 Striated plankton populations in oceanic flows
0:28:35 Fluid dynamical niches of phytoplankton types
0:30:51 Compressible advection of microorganism density c(x,t)
0:38:57 Compressible population genetics with two interacting species
0:44:54 Simplified reaction-diffusion model of competition with a prescribed flow field
0:49:23 Q&A
0:57:24 Test of nucleation theory in two dimensions
1:01:30 The effect of a saddle flow
1:03:27 Time series for initial radius=0.11, increasing flow strength F at the saddle
1:03:57 Larger droplets can be strongly influenced by periodic boundary conditions
1:05:48 On Growth and Form of Microorganisms on Liquid Substrates
1:07:35 Microorganisms grown on liquid but highly viscous substrates create their own flows
1:11:49 Colony features dilate as if inscribed on an inflating balloon
1:14:12 In addition to simple outward pushing due to excluded volume interactions
1:16:55 Origin of the enhanced flow beneath colonies growing on liquid substrates
1:20:43 Flow simulations
1:27:33 Solid-like colony fragmentation
1:29:25 We now expect a submerged vortex ring under each colony fragment
1:30:11 Summary
1:30:22 Thank You