Increases in vein length compensate for leaf area lost to lobing in grapevine.

ABSTRACT:

Premise

Leaf lobing and leaf size vary considerably across and within species, including among grapevines (Vitis spp.), some of the best-studied leaves. We examined the relationship between leaf lobing and leaf area across grapevine populations that varied in extent of leaf lobing.

Methods

We used homologous landmarking techniques to measure 2632 leaves across 2 years in 476 unique, genetically distinct grapevines from five biparental crosses that vary primarily in the extent of lobing. We determined to what extent leaf area explained variation in lobing, vein length, and vein to blade ratio.

Results

Although lobing was the primary source of variation in shape across the leaves we measured, leaf area varied only slightly as a function of lobing. Rather, leaf area incr

SUBMITTER: Migicovsky Z 

PROVIDER: S-EPMC9545854 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature