Abstract:
:The shapes of leaves are dynamic, changing over evolutionary time between species, within a single plant producing different shaped leaves at successive nodes, during the development of a single leaf as it allometrically expands, and in response to the environment. Notably, strong correlations between the dissection and size of leaves with temperature and precipitation exist in both the paleorecord and extant populations. Yet, a morphometric model integrating evolutionary, developmental, and environmental effects on leaf shape is lacking. Here, we continue a morphometric analysis of >5,500 leaves representing 270 grapevines of multiple Vitis species between two growing seasons. Leaves are paired one-to-one and vine-to-vine accounting for developmental context, between growing seasons. Linear discriminant analysis reveals shape features that specifically define growing season, regardless of species or developmental context. The shape feature, a more pronounced distal sinus, is associated with the colder, drier growing season, consistent with patterns observed in the paleorecord. We discuss the implications of such plasticity in a long-lived woody perennial, such as grapevine (Vitis spp.), with respect to the evolution and functionality of plant morphology and changes in climate.
journal_name
Plant Physioljournal_title
Plant physiologyauthors
Chitwood DH,Rundell SM,Li DY,Woodford QL,Yu TT,Lopez JR,Greenblatt D,Kang J,Londo JPdoi
10.1104/pp.15.01825subject
Has Abstractpub_date
2016-03-01 00:00:00pages
1480-91issue
3eissn
0032-0889issn
1532-2548pii
pp.15.01825journal_volume
170pub_type
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