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TZUNTIL:20270328T010000Z
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DTSTART:20241027T030000
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DTSTAMP:20260815T221210Z
DESCRIPTION:Polyploidy is a major evolutionary force that can facilitate ad
 aptation to diverse and challenging environments. This study explores the 
 mechanisms underlying polyploid adaptation across various harsh habitats\,
  including mountains\, tropical regions\, and islands\, using the polyploi
 dy-rich genus Rorippa as a model system. By integrating population genomic
 s\, quantitative and ecological genetics\, we unravel the complex interpla
 y between genomic and environmental factors driving polyploid diversificat
 ion. Our findings demonstrate that allopolyploidization plays a crucial ro
 le in adaptation. In R. elata\, a high-altitude species in the Hengduan Mo
 untains\, we identified a group of selectively swept genes associated with
  stable meiosis\, suggesting their importance in the establishment and div
 ersification of this polyploid lineage. In R. indica\, an allohexaploid sp
 ecies native in East Asia\, we observed an association between evolved gen
 ome size expansion and adaptation to seasonally stable environments\, prob
 ably during its recent colonization into tropical areas in Southeast Asia.
  Finally\, in R. sarmentosa\, an island endemic scattered in the Pacific O
 cean\, we reconstructed the origin of polyploidy through long-distance dis
 persal events. These studies collectively highlight the interconnectedness
  of cellular and habitat adaptation in polyploid plants. Our findings prov
 ide valuable insights into the drivers and consequences of polyploidy\, wi
 th significant implications for understanding plant responses to climate c
 hange and for developing more stress-tolerant crops.
DTSTART;TZID=Europe/Berlin:20250515T123000
DTEND;TZID=Europe/Berlin:20250515T140000
LOCATION:H6\, Geo
SUMMARY:Ting-Shen Han\, Max Planck Institute for Plant Breeding Research\, 
 Cologne (Homepage): Polyploid adaptation to extreme environments
TRANSP:TRANSPARENT
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