Ancient DNA analysis involves extracting and sequencing genetic material from preserved plant remains to study organisms from the past. This technique is valuable for plant science as it reveals the genetic changes that occurred during crop domestication and provides direct molecular evidence of how cultivated plants evolved from wild ancestors. By understanding these genetic transitions, researchers can trace the origins of agriculture and how plants adapted to human cultivation.
Scientists are now able to study the ancient DNA of plants on a massive scale, revealing how crops were domesticated and how plants evolved over thousands of years. This field is opening doors to recovering lost genetic diversity that could help make our food crops more resilient.
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The field has shifted in the last decade from studying a handful of genetic markers to reading complete, genome-wide data across multiple plant species simultaneously.
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Ancient plant DNA can capture information about the microbes that lived alongside plants, offering a new way to study how plant-microbiome relationships co-evolved over deep time.
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Environmental DNA preserved in ancient sediments may soon yield complete plant genomes, enabling study of plant population dynamics predating the origins of agriculture.
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