Photo Credit: Mitchell Coleman

2023 Botany Speaker Series

The CalBotSoc botany speaker series showcases and promotes the work of early career botanists. If you are an early career botanist interested in giving a talk of general interest to our members, please contact our Membership Chair

Thursday, September 14, 2023 7-8pm PT

Kathryn Uckele, UC Santa Cruz

Kate Uckele
Kate Uckele

“Hybridization among three juniper taxa along the Sierra-Great Basin Ecotone”

Junipers are a foundational woody plant across many arid and semi-arid landscapes of western North America. Pinyon-juniper woodlands cover millions of acres across the western United States, providing vital food and habitat resources for many arthropod, bird, and mammal species. Along the Sierra-Great Basin Ecotone, three juniper taxa come into contact and hybridize, forming a broad hybrid zone along the border of California and Nevada. To determine the ancestry of the hybrids, I generated a large population genetic data set (9,125 SNPs; 25 populations; 326 individuals) that spanned the hybrid zone and the geographic ranges of the three taxa. For these same individuals, my collaborators and I characterized phytochemical variation (163 terpenoid molecules) to understand how leaf chemistry varies across pure individuals and hybrids. I compare patterns of genetic, phytochemical, and environmental variation across the landscape to understand the evolutionary consequences and ecological drivers of hybridization in this system.

Kathryn Uckele is a postdoctoral scholar in the Department of Ecology and Evolutionary Biology at the University of California, Santa Cruz, where she studies the evolution and diversification of the tropical spiral gingers (Costus). In 2022, she received her PhD in Ecology, Evolution, and Conservation Biology from the University of Nevada, Reno, where much of her research focused on understanding the genomic and phenotypic consequences of hybridization among three juniper taxa.

Meeting ID: 952 1015 9819Passcode: 679424One tap mobile+16699006833,,95210159819#,,,,*679424# US (San Jose)+16694449171,,95210159819#,,,,*679424# USDial by your location• +1 669 900 6833 US (San Jose)• +1 669 444 9171 US• +1 253 215 8782 US (Tacoma)• +1 346 248 7799 US (Houston)• +1 719 359 4580 US• +1 253 205 0468 US• +1 507 473 4847 US• +1 564 217 2000 US• +1 646 558 8656 US (New York)• +1 646 931 3860 US• +1 689 278 1000 US• +1 301 715 8592 US (Washington DC)• +1 305 224 1968 US• +1 309 205 3325 US• +1 312 626 6799 US (Chicago)• +1 360 209 5623 US• +1 386 347 5053 USMeeting ID: 952 1015 9819Passcode: 679424Find your local number: by SIP95210159819@zoomcrc.comJoin by H.323• (US West)• (US East)• (China)• (India Mumbai)• (India Hyderabad)• (Amsterdam Netherlands)• (Germany)• (Australia Sydney)• (Australia Melbourne)• (Hong Kong SAR)• (Singapore)• (Brazil)• (Mexico)• (Canada Toronto)• (Canada Vancouver)• (Japan Tokyo)• (Japan Osaka)Meeting ID: 952 1015 9819Passcode: 679424

Photo by Mitchell Coleman
Photo by Mitchell Coleman

2023 Schedule of Talks

12-Jan: Keir Morse, California Botanic Garden

9-Feb: Forrest Freund, UC Berkeley

9-Mar: Riley Scaff, Pitzer College

13-Apr: Regan E. Dunn, La Brea Tar Pits & Museum

11-May: TBD

8-June: Regan E. Dunn, La Brea Tar Pits & Museum

13-Jul: Tadeo Ramirez-Parada, UC Santa Barbara

10-Aug: Israel Borokini, UC Berkeley

14-Sep: Kathryn Uckele, UC Santa Cruz

12-Oct: Katherine Waselkov, Fresno State

9-Nov: Ioana Anghel, UCLA

14-Dec: Candela Blanco Moreno, Universidad Autónoma de Madrid, Spain
& Cal Poly Humboldt

Photo by John Game

View Recordings of Past Talks on our YouTube Channel

Botany Speaker Series Playlist

Photo by John Game
Photo by John Game
Photo by John Game

 ©2023 California Botanical Society

c/o Jepson Herbarium 1001 Valley Life Sciences Building Berkeley, California 94720-2465



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