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Mapping Floral Genetic Architecture in Prunus mume, an Ornamental Woody Plant

Floral traits are both evolutionarily and economically relevant for ornamental plants. However, their underlying genetic architecture, especially in woody ornamental plants, is still poorly understood. We perform mapping experiments aimed at identifying specific quantitative trait loci (QTLs) that c...

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Autores principales: Li, Mingyu, Sang, Mengmeng, Wen, Zhenying, Meng, Juan, Cheng, Tangren, Zhang, Qixiang, Sun, Lidan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8860970/
https://www.ncbi.nlm.nih.gov/pubmed/35211141
http://dx.doi.org/10.3389/fpls.2022.828579
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author Li, Mingyu
Sang, Mengmeng
Wen, Zhenying
Meng, Juan
Cheng, Tangren
Zhang, Qixiang
Sun, Lidan
author_facet Li, Mingyu
Sang, Mengmeng
Wen, Zhenying
Meng, Juan
Cheng, Tangren
Zhang, Qixiang
Sun, Lidan
author_sort Li, Mingyu
collection PubMed
description Floral traits are both evolutionarily and economically relevant for ornamental plants. However, their underlying genetic architecture, especially in woody ornamental plants, is still poorly understood. We perform mapping experiments aimed at identifying specific quantitative trait loci (QTLs) that control the size, shape, architecture, color, and timing of flowers in mei (Prunus mume). We find that the narrow region of chromosome 1 (5–15 Mb) contains a number of floral QTLs. Most QTLs detected from this mapping study are annotated to candidate genes that regulate various biological functions toward the floral formation. We identify strong pleiotropic control on different aspects of flower morphology (including shape, petal number, pistil number, petal color, and calyx color) and flower timing, but find different genetic systems that mediate whether a flower produces pistils and how many pistils a flower produces. We find that many floral QTLs display pleiotropic effects on shoot length growth but shoot radial growth, implicating a possible association of floral display with light capture. We conduct a transcriptomic study to characterize the genomic signature of floral QTLs expressed in mei. Our mapping results about the genetic control of floral features make it promising to select superior varieties for mei carrying flowers of ornamental value.
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spelling pubmed-88609702022-02-23 Mapping Floral Genetic Architecture in Prunus mume, an Ornamental Woody Plant Li, Mingyu Sang, Mengmeng Wen, Zhenying Meng, Juan Cheng, Tangren Zhang, Qixiang Sun, Lidan Front Plant Sci Plant Science Floral traits are both evolutionarily and economically relevant for ornamental plants. However, their underlying genetic architecture, especially in woody ornamental plants, is still poorly understood. We perform mapping experiments aimed at identifying specific quantitative trait loci (QTLs) that control the size, shape, architecture, color, and timing of flowers in mei (Prunus mume). We find that the narrow region of chromosome 1 (5–15 Mb) contains a number of floral QTLs. Most QTLs detected from this mapping study are annotated to candidate genes that regulate various biological functions toward the floral formation. We identify strong pleiotropic control on different aspects of flower morphology (including shape, petal number, pistil number, petal color, and calyx color) and flower timing, but find different genetic systems that mediate whether a flower produces pistils and how many pistils a flower produces. We find that many floral QTLs display pleiotropic effects on shoot length growth but shoot radial growth, implicating a possible association of floral display with light capture. We conduct a transcriptomic study to characterize the genomic signature of floral QTLs expressed in mei. Our mapping results about the genetic control of floral features make it promising to select superior varieties for mei carrying flowers of ornamental value. Frontiers Media S.A. 2022-02-08 /pmc/articles/PMC8860970/ /pubmed/35211141 http://dx.doi.org/10.3389/fpls.2022.828579 Text en Copyright © 2022 Li, Sang, Wen, Meng, Cheng, Zhang and Sun. https://creativecommons.org/licenses/by/4.0/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.
spellingShingle Plant Science
Li, Mingyu
Sang, Mengmeng
Wen, Zhenying
Meng, Juan
Cheng, Tangren
Zhang, Qixiang
Sun, Lidan
Mapping Floral Genetic Architecture in Prunus mume, an Ornamental Woody Plant
title Mapping Floral Genetic Architecture in Prunus mume, an Ornamental Woody Plant
title_full Mapping Floral Genetic Architecture in Prunus mume, an Ornamental Woody Plant
title_fullStr Mapping Floral Genetic Architecture in Prunus mume, an Ornamental Woody Plant
title_full_unstemmed Mapping Floral Genetic Architecture in Prunus mume, an Ornamental Woody Plant
title_short Mapping Floral Genetic Architecture in Prunus mume, an Ornamental Woody Plant
title_sort mapping floral genetic architecture in prunus mume, an ornamental woody plant
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8860970/
https://www.ncbi.nlm.nih.gov/pubmed/35211141
http://dx.doi.org/10.3389/fpls.2022.828579
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