Dataset Information

Composite modeling of leaf shape along shoots discriminates Vitis species better than individual leaves.

ABSTRACT:

Premise

Leaf morphology is dynamic, continuously deforming during leaf expansion and among leaves within a shoot. Here, we measured the leaf morphology of more than 200 grapevines (Vitis spp.) over four years and modeled changes in leaf shape along the shoot to determine whether a composite leaf shape comprising all the leaves from a single shoot can better capture the variation and predict species identity compared with individual leaves.

Methods

Using homologous universal landmarks found in grapevine leaves, we modeled various morphological features as polynomial functions of leaf nodes. The resulting functions were used to reconstruct modeled leaf shapes across the shoots, generating composite leaves that comprehensively capture the spectrum of leaf morphologies present.

Results

We found that composite leaves are better predictors of species identity than individual leaves from the same plant. We were able to use composite leaves to predict the species identity of previously unassigned grapevines, which were verified with genotyping.

Discussion

Observations of individual leaf shape fail to capture the true diversity between species. Composite leaf shape-an assemblage of modeled leaf snapshots across the shoot-is a better representation of the dynamic and essential shapes of leaves, in addition to serving as a better predictor of species identity than individual leaves.

SUBMITTER: Bryson AE

PROVIDER: S-EPMC7742203 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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Publications

Composite modeling of leaf shape along shoots discriminates <i>Vitis</i> species better than individual leaves.

Bryson Abigail E AE Wilson Brown Maya M Mullins Joey J Dong Wei W Bahmani Keivan K Bornowski Nolan N Chiu Christina C Engelgau Philip P Gettings Bethany B Gomezcano Fabio F Gregory Luke M LM Haber Anna C AC Hoh Donghee D Jennings Emily E EE Ji Zhongjie Z Kaur Prabhjot P Kenchanmane Raju Sunil K SK Long Yunfei Y Lotreck Serena G SG Mathieu Davis T DT Ranaweera Thilanka T Ritter Eleanore J EJ Sadohara Rie R Shrote Robert Z RZ Smith Kaila E KE Teresi Scott J SJ Venegas Julian J Wang Hao H Wilson McKena L ML Tarrant Alyssa R AR Frank Margaret H MH Migicovsky Zoë Z Kumar Jyothi J VanBuren Robert R Londo Jason P JP Chitwood Daniel H DH

Applications in plant sciences 20201203 12

<h4>Premise</h4>Leaf morphology is dynamic, continuously deforming during leaf expansion and among leaves within a shoot. Here, we measured the leaf morphology of more than 200 grapevines (<i>Vitis</i> spp.) over four years and modeled changes in leaf shape along the shoot to determine whether a composite leaf shape comprising all the leaves from a single shoot can better capture the variation and predict species identity compared with individual leaves.<h4>Methods</h4>Using homologous universal ...[more]

PMID: 33344095

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