Editing Ginkgo biloba (section)

=== Genome ===
Chinese scientists published a draft [[genome]] of ''Ginkgo biloba'' in 2016.<ref name="Guan-2016">{{cite journal |last1=Guan |first1=Rui |last2=Zhao |first2=Yunpeng |last3=Zhang |first3=He |last4=Fan |first4=Guangyi |last5=Liu |first5=Xin |last6=Zhou |first6=Wenbin |last7=Shi |first7=Chengcheng |last8=Wang |first8=Jiahao |last9=Liu |first9=Weiqing |date=1 January 2016 |title=Draft genome of the living fossil Ginkgo biloba |journal=GigaScience |volume=5 |issue=1 |page=49 |doi=10.1186/s13742-016-0154-1 |pmid=27871309 |pmc=5118899 |issn=2047-217X |doi-access=free }}</ref> The tree has a large genome of 10.6&nbsp;billion [[DNA]] [[nucleobase]] "letters" (the human genome has three billion) and about 41,840&nbsp;predicted [[gene]]s<ref>{{cite news |url=https://www.bbc.com/news/science-environment-38057741 |title=Ginkgo 'living fossil' genome decoded |date=21 November 2016 |newspaper=BBC News |language=en-GB |access-date=23 November 2016}}</ref> which enable a considerable number of antibacterial and chemical defense mechanisms.<ref name="Guan-2016"/> 76.58% of the assembled sequence turned out to be repetitive sequences.<ref>[https://gigascience.biomedcentral.com/articles/10.1186/s13742-016-0154-1 Draft genome of the living fossil Ginkgo biloba – GigaScience]</ref>

In 2020, a study in China of [[ginkgo]] trees up to 667 years old showed little effects of aging, finding that the trees continued to grow with age and displayed no genetic evidence of [[senescence]], and continued to make [[phytochemical]]s indefinitely.<ref name=cnn>{{cite news |last=Hunt |first=Katie |date=January 14, 2020 |title=Some trees can live for more than 1,000 years and scientists may have figured out why |work=[[CNN]] |url=https://www.cnn.com/2020/01/14/asia/ginkgo-trees-secret-longevity-scn/index.html |access-date=January 19, 2020}}</ref>