Leaf Size Development Differences and Comparative Trancriptome Analyses of Two Poplar Genotypes

Leaf Size Development Differences and Comparative Trancriptome Analyses of Two Poplar Genotypes

The plant leaf, the main organ of photosynthesis, is an important regulator of growth. To explore the difference between leaf size of <i>Populus</i><i>deltoides</i> ‘Danhong’ (Pd) and <i>P</i><i>opulus simonii</i> ‘Tongliao1’ (Ps), we investigated the...

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Autores principales: Lei Zhang, Jiujun Du, Xiaolan Ge, Demei Cao, Jianjun Hu
Formato: article
Lenguaje:EN
Publicado: MDPI AG 2021
Materias:
<i>Populus</i>
leaf size
cell cycle
cell division
growth-regulating factor
Genetics
QH426-470
Acceso en línea:https://doaj.org/article/61c8029743c34d06a32ae72ed5672263
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spelling oai:doaj.org-article:61c8029743c34d06a32ae72ed56722632021-11-25T17:41:48ZLeaf Size Development Differences and Comparative Trancriptome Analyses of Two Poplar Genotypes10.3390/genes121117752073-4425https://doaj.org/article/61c8029743c34d06a32ae72ed56722632021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4425/12/11/1775https://doaj.org/toc/2073-4425The plant leaf, the main organ of photosynthesis, is an important regulator of growth. To explore the difference between leaf size of <i>Populus</i><i>deltoides</i> ‘Danhong’ (Pd) and <i>P</i><i>opulus simonii</i> ‘Tongliao1’ (Ps), we investigated the leaf length, leaf width, leaf thickness, leaf area, leaf mass per area (LMA), and cell size of leaves from two genotypes and profiled the transcriptome-wide gene expression patterns through RNA sequencing. Our results show that the leaf area of Pd was significantly larger than that of Ps, but the epidermal cell area was significantly smaller than that of Ps. The difference of leaf size was caused by cell numbers. Transcriptome analysis also revealed that genes related to chromosome replication and DNA repair were highly expressed in Pd, while genes such as the <i>EXPANSIN</i> (<i>EXPA</i>) family which promoted cell expansion were highly expressed in Ps. Further, we revealed that the growth-regulating factors (<i>GRFs</i>) played a key role in the difference of leaf size between two genotypes through regulation of cell proliferation. These data provide a valuable resource for understanding the leaf development of the <i>Populus</i> genus.Lei ZhangJiujun DuXiaolan GeDemei CaoJianjun HuMDPI AGarticle<i>Populus</i>leaf sizecell cyclecell divisiongrowth-regulating factorGeneticsQH426-470ENGenes, Vol 12, Iss 1775, p 1775 (2021)
institution DOAJ
collection DOAJ
language EN
topic <i>Populus</i>
leaf size
cell cycle
cell division
growth-regulating factor
Genetics
QH426-470
spellingShingle <i>Populus</i>
leaf size
cell cycle
cell division
growth-regulating factor
Genetics
QH426-470
Lei Zhang
Jiujun Du
Xiaolan Ge
Demei Cao
Jianjun Hu
Leaf Size Development Differences and Comparative Trancriptome Analyses of Two Poplar Genotypes
description The plant leaf, the main organ of photosynthesis, is an important regulator of growth. To explore the difference between leaf size of <i>Populus</i><i>deltoides</i> ‘Danhong’ (Pd) and <i>P</i><i>opulus simonii</i> ‘Tongliao1’ (Ps), we investigated the leaf length, leaf width, leaf thickness, leaf area, leaf mass per area (LMA), and cell size of leaves from two genotypes and profiled the transcriptome-wide gene expression patterns through RNA sequencing. Our results show that the leaf area of Pd was significantly larger than that of Ps, but the epidermal cell area was significantly smaller than that of Ps. The difference of leaf size was caused by cell numbers. Transcriptome analysis also revealed that genes related to chromosome replication and DNA repair were highly expressed in Pd, while genes such as the <i>EXPANSIN</i> (<i>EXPA</i>) family which promoted cell expansion were highly expressed in Ps. Further, we revealed that the growth-regulating factors (<i>GRFs</i>) played a key role in the difference of leaf size between two genotypes through regulation of cell proliferation. These data provide a valuable resource for understanding the leaf development of the <i>Populus</i> genus.
format article
author Lei Zhang
Jiujun Du
Xiaolan Ge
Demei Cao
Jianjun Hu
author_facet Lei Zhang
Jiujun Du
Xiaolan Ge
Demei Cao
Jianjun Hu
author_sort Lei Zhang
title Leaf Size Development Differences and Comparative Trancriptome Analyses of Two Poplar Genotypes
title_short Leaf Size Development Differences and Comparative Trancriptome Analyses of Two Poplar Genotypes
title_full Leaf Size Development Differences and Comparative Trancriptome Analyses of Two Poplar Genotypes
title_fullStr Leaf Size Development Differences and Comparative Trancriptome Analyses of Two Poplar Genotypes
title_full_unstemmed Leaf Size Development Differences and Comparative Trancriptome Analyses of Two Poplar Genotypes
title_sort leaf size development differences and comparative trancriptome analyses of two poplar genotypes
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/61c8029743c34d06a32ae72ed5672263
work_keys_str_mv AT leizhang leafsizedevelopmentdifferencesandcomparativetrancriptomeanalysesoftwopoplargenotypes
AT jiujundu leafsizedevelopmentdifferencesandcomparativetrancriptomeanalysesoftwopoplargenotypes
AT xiaolange leafsizedevelopmentdifferencesandcomparativetrancriptomeanalysesoftwopoplargenotypes
AT demeicao leafsizedevelopmentdifferencesandcomparativetrancriptomeanalysesoftwopoplargenotypes
AT jianjunhu leafsizedevelopmentdifferencesandcomparativetrancriptomeanalysesoftwopoplargenotypes
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