Plant morpho evo-devo

Petrone‐Mendoza, Emilio; Vergara‐Silva, Francisco; Olson, Mark E.

doi:10.1016/j.tplants.2023.06.007

Cited by 9 publications

(4 citation statements)

References 119 publications

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“…The combination of Colony counter Scan1200 (image acquisition device) and OpenCV (image analysis package) is an effective solution for large-scale high-throughput phenotyping of above-ground organs (e.g., leaves, stems and flowers) in plant science. The method could be also used to quantificationally measure these above-ground organs during development stages or under environmental factors [39,40]. These phenotypic data are very valuable for plant biology and ecology [41].…”

Section: Discussionmentioning

confidence: 99%

Large-Scale and High-Accuracy Phenotyping of Populus simonii Leaves Using the Colony Counter and OpenCV

Zhu,

Zhang,

Chen

et al. 2023

Forests

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Image-based morphometric technology is broadly applicable to generate large-scale phenomic datasets in ecological, genetic and morphological studies. However, little is known about the performance of image-based measuring methods on plant morphological characters. In this study, we presented an automatic image-based workflow to obtain the accurate estimations for basic leaf characteristics (e.g., ratio of length/width, length, width, and area) from a hundred Populus simonii pictures, which were captured on Colony counter Scan1200. The image-based workflow was implemented with Python and OpenCV, and subdivided into three parts, including image pre-processing, image segmentation and object contour detection. Six image segmentation methods, including Chan-Vese, Iterative threshold, K-Mean, Mean, OSTU, and Watershed, differed in the running time, noise sensitivity and accuracy. The image-based estimates and measured values for leaf morphological traits had a strong correlation coefficient (r2 > 0.9736), and their residual errors followed a Gaussian distribution with a mean of almost zero. Iterative threshold, K-Mean, OSTU, and Watershed overperformed the other two methods in terms of efficiency and accuracy. This study highlights the high-quality and high-throughput of autonomous image-based phenotyping and offers a guiding clue for the practical use of suitable image-based technologies in biological and ecological research.

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Section: Discussionmentioning

confidence: 99%

Large-Scale and High-Accuracy Phenotyping of Populus simonii Leaves Using the Colony Counter and OpenCV

Zhu,

Zhang,

Chen

et al. 2023

Forests

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“…It integrates evolutionary theory, morphology, and molecular genetics. Morpho evo-devo emphasizes the morphological aspects of evo-devo [1][2][3][4]. Thus, in this article, the focus is on the morphological evolutionary changes in the development of the gynoecium.…”

Section: Introductionmentioning

confidence: 99%

Morpho Evo-Devo of the Gynoecium: Heterotopy, Redefinition of the Carpel, and a Topographic Approach

Sattler

2024

Plants

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Since the 19th century, we have had countless debates, sometimes acrimonious, about the nature of the gynoecium. A pivotal question has been whether all angiosperms possess carpels or if some or all angiosperms are acarpellate. We can resolve these debates if we do not define the carpel as a closed megasporophyll but simply as an appendage that encloses the placenta or a single ovule. This redefinition may, however, lead to confusion because often it may not be clear whether the traditional (classical) definition of the carpel or the redefinition is implied. Therefore, a topographic approach is proposed that is compatible with the redefinition. According to this approach, gynoecia comprise one or more gynoecial appendages and placentas or single ovules that may be formed in different positions. Heterotopy refers to these different positions. In the context of evo-devo, which explores evolutionary changes in development, morpho evo-devo delves into spatial shifts of the placentas and ovules leading to heterotopy. Furthermore, it considers shifts in timing (heterochrony) and other processes leading to heteromorphy. Recognizing spatial shifting of the placentas or a single ovule and other evolutionary processes opens up new vistas in the search for the ancestor(s) of angiosperms and their gynoecia.

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“…Developing an organ or a suite of organs to meet functional demands at an early ontogenetic stage should influence the range of forms that can be constructed in later stages (Losada et al ., 2019), given that plants typically grow by cell proliferation and differentiation within existing organs. It is conceivable that strong selection for a particular morphological solution to an early functional stage, such as at pollination, could make the growth of certain mature morphologies unlikely or even impossible, restricting the evolution of disparity by creating unoccupiable areas of character space (see Petrone‐Mendoza et al ., 2023). Exploring disparity and morphospace occupation patterns over the whole ontogeny of plant reproductive structures is not commonly done (Leslie & Losada, 2019), but represents an approach to study the potential role of their complicated ontogeny in shaping the evolution of morphological diversity.…”

Section: Introductionmentioning

confidence: 99%

“…Morphological disparity is ultimately generated by variation in patterns of growth and development among species and clades. Changes in development, especially heterochrony in a broad sense (Smith, 2001;McNamara & McKinney, 2005;Webster & Zelditch, 2005), have been widely studied for their potential role in the evolution of morphological diversity in animals (Gould, 1977;Klingenberg, 1998;Smith, 2003;McNamara & McKinney, 2005) and plants (DiMichele et al, 1989;Friedman & Carmichael, 1998;Olson, 2012;Buend ıa-Monreal & Gillmor, 2018;San Martin et al, 2022;Petrone-Mendoza et al, 2023). But, plant reproductive structures, especially those of seed plants (which have been the most common focus for studies of disparity e.g.…”

Section: Introductionmentioning

confidence: 99%

The ontogeny of disparity in Cupressaceae seed cones

Huntsman,

Leslie

2023

New Phytologist

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Summary Ontogenetic shape change has long been recognized to be important in generating patterns of morphological diversity and may be especially important in plant reproductive structures. We explore how seed cone disparity in Cupressaceae changes over ontogeny by comparing pollination‐stage and mature cones. We sampled cones at pollen and seed release and measured cone scales using basic morphometric shape variables. We used multivariate statistical methods, particularly hypervolume overlap calculations, to measure morphospace occupation and disparity. Cone scales at both pollination and maturity exhibit substantial variability, although the disparity is greater at maturity. Mature cone scales are also more clustered in trait space, showing less overlap with other taxa than at pollination. These patterns reflect two growth strategies that generate closed cones over maturation, either through thin laminar scales or relatively thick, peltate scales, resulting in two distinct regions of morphospace occupation. Disparity patterns in Cupressaceae seed cones change over ontogeny, reflecting shifting functional demands that require specific patterns of cone scale growth. The evolution of Cupressaceae reproductive disparity therefore represents selection for trajectories of ontogenetic shape change, a phenomenon that should be widespread across seed plants.

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Plant morpho evo-devo

Cited by 9 publications

References 119 publications

Large-Scale and High-Accuracy Phenotyping of Populus simonii Leaves Using the Colony Counter and OpenCV

Large-Scale and High-Accuracy Phenotyping of Populus simonii Leaves Using the Colony Counter and OpenCV

Morpho Evo-Devo of the Gynoecium: Heterotopy, Redefinition of the Carpel, and a Topographic Approach

The ontogeny of disparity in Cupressaceae seed cones

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