Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2020 Nov 5;11:540894. doi: 10.3389/fpls.2020.540894

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2020 Ruiz, Oustric, Santini and Morillon.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

PMC Copyright notice

Illustration of the phenotypic differentiation between diploid (2x) and polyploid (triploid, 3x and tetraploid, 4x) citrus at the plant, organ and cellular level. (A) Diploid and 4x seeds of Citrumelo (bar = 0.5 cm). (B) Diploid and 4x Citrumelo trees planted at the same age at the INRAe – Cirad germplasm of San Giuliano, France (bar = 0.5 m). (C) Diploid and 4x Carrizo citrange fibrous roots (bar = 1 cm). (D) Scanning electron microscopy pictures of the leaf palisade parenchyma of 2x and 4x Volkamer lemon (bar = 10 μm). (E) Light micrographs of cross-sections of internodes and roots of Rangpur lime plants (bar = 25 μm) from Allario et al. (2011). (F) Light micrographs of leaf epidermis showing stomata from 2x and 4x Citrumelo (bar = 10 μm). (G) Leaf and fruit of Mexican lime (2x), Tahiti lime (3x), and Giant Mexican lime (Autotetraploid; bar = 0.5 cm).