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The genome size, chromosome number and the seed adaption to long-distance dispersal of Ipomoea pes-caprae (L.)

Ipomoeapes-caprae (L.) (IPC) is a common species in tropical and subtropical coastal areas and one of the world’s most widely distributed plants. It has attracted researchers for its outstanding biological, ecological and medicinal values. It has been reported that the genetic diversity of IPCs loca...

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Autores principales: Ye, Kangzhuo, Dong, Chunxing, Hu, Bin, Yuan, Jieyu, Sun, Jin, Li, Zixian, Deng, Fang, Fakher, Beenish, Wang, Lulu, Pan, Chenglang, Aslam, Mohammad, Qin, Yuan, Cheng, Yan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10017971/
https://www.ncbi.nlm.nih.gov/pubmed/36938054
http://dx.doi.org/10.3389/fpls.2023.1074935
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author Ye, Kangzhuo
Dong, Chunxing
Hu, Bin
Yuan, Jieyu
Sun, Jin
Li, Zixian
Deng, Fang
Fakher, Beenish
Wang, Lulu
Pan, Chenglang
Aslam, Mohammad
Qin, Yuan
Cheng, Yan
author_facet Ye, Kangzhuo
Dong, Chunxing
Hu, Bin
Yuan, Jieyu
Sun, Jin
Li, Zixian
Deng, Fang
Fakher, Beenish
Wang, Lulu
Pan, Chenglang
Aslam, Mohammad
Qin, Yuan
Cheng, Yan
author_sort Ye, Kangzhuo
collection PubMed
description Ipomoeapes-caprae (L.) (IPC) is a common species in tropical and subtropical coastal areas and one of the world’s most widely distributed plants. It has attracted researchers for its outstanding biological, ecological and medicinal values. It has been reported that the genetic diversity of IPCs located on different continents is very low because of their frequent gene flow. During the long journey of evolution, every aspect of the plant morphologies has evolved to the best adaptivity to the environment, seeking their survival and progeny expansion. However, the fundamental genetic characteristics of IPC and how their seed adapted to the success of population expansion remain unknown. In this study, the fundamental genetic characteristics, including the genome size and the chromosome number of IPC, were investigated. The results showed that IPC’s genome size is approximately 0.98-1.08 GB, and the chromosome number is 2n=30, providing the basic information for further genome analysis. In order to decipher the long-distance dispersal secret of this species, the fruit and seed developments, seed morphology, and seed germination were extensively investigated and described. The results showed an exquisite adaptive mechanism of IPC seeds to fulfil the population expansion via ocean currents. The large cavity inside the seeds and the dense tomenta on the surface provide the buoyancy force for the seeds to float on the seawater. The hard seed coats significantly obstructed the water absorption, thus preventing the seed from germination during the dispersal. Meanwhile, the fully developed embryos of IPC also have physiological dormancy. The physical and physiological characteristics of IPC seeds provide insight into the mechanism of their long-distance dispersal across the oceans. Moreover, based on morphological observation and semi-section microscopy, the development pattern of IPC glander trichomes was described, and their physiological functions were also discussed.
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spelling pubmed-100179712023-03-17 The genome size, chromosome number and the seed adaption to long-distance dispersal of Ipomoea pes-caprae (L.) Ye, Kangzhuo Dong, Chunxing Hu, Bin Yuan, Jieyu Sun, Jin Li, Zixian Deng, Fang Fakher, Beenish Wang, Lulu Pan, Chenglang Aslam, Mohammad Qin, Yuan Cheng, Yan Front Plant Sci Plant Science Ipomoeapes-caprae (L.) (IPC) is a common species in tropical and subtropical coastal areas and one of the world’s most widely distributed plants. It has attracted researchers for its outstanding biological, ecological and medicinal values. It has been reported that the genetic diversity of IPCs located on different continents is very low because of their frequent gene flow. During the long journey of evolution, every aspect of the plant morphologies has evolved to the best adaptivity to the environment, seeking their survival and progeny expansion. However, the fundamental genetic characteristics of IPC and how their seed adapted to the success of population expansion remain unknown. In this study, the fundamental genetic characteristics, including the genome size and the chromosome number of IPC, were investigated. The results showed that IPC’s genome size is approximately 0.98-1.08 GB, and the chromosome number is 2n=30, providing the basic information for further genome analysis. In order to decipher the long-distance dispersal secret of this species, the fruit and seed developments, seed morphology, and seed germination were extensively investigated and described. The results showed an exquisite adaptive mechanism of IPC seeds to fulfil the population expansion via ocean currents. The large cavity inside the seeds and the dense tomenta on the surface provide the buoyancy force for the seeds to float on the seawater. The hard seed coats significantly obstructed the water absorption, thus preventing the seed from germination during the dispersal. Meanwhile, the fully developed embryos of IPC also have physiological dormancy. The physical and physiological characteristics of IPC seeds provide insight into the mechanism of their long-distance dispersal across the oceans. Moreover, based on morphological observation and semi-section microscopy, the development pattern of IPC glander trichomes was described, and their physiological functions were also discussed. Frontiers Media S.A. 2023-03-02 /pmc/articles/PMC10017971/ /pubmed/36938054 http://dx.doi.org/10.3389/fpls.2023.1074935 Text en Copyright © 2023 Ye, Dong, Hu, Yuan, Sun, Li, Deng, Fakher, Wang, Pan, Aslam, Qin and Cheng 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
Ye, Kangzhuo
Dong, Chunxing
Hu, Bin
Yuan, Jieyu
Sun, Jin
Li, Zixian
Deng, Fang
Fakher, Beenish
Wang, Lulu
Pan, Chenglang
Aslam, Mohammad
Qin, Yuan
Cheng, Yan
The genome size, chromosome number and the seed adaption to long-distance dispersal of Ipomoea pes-caprae (L.)
title The genome size, chromosome number and the seed adaption to long-distance dispersal of Ipomoea pes-caprae (L.)
title_full The genome size, chromosome number and the seed adaption to long-distance dispersal of Ipomoea pes-caprae (L.)
title_fullStr The genome size, chromosome number and the seed adaption to long-distance dispersal of Ipomoea pes-caprae (L.)
title_full_unstemmed The genome size, chromosome number and the seed adaption to long-distance dispersal of Ipomoea pes-caprae (L.)
title_short The genome size, chromosome number and the seed adaption to long-distance dispersal of Ipomoea pes-caprae (L.)
title_sort genome size, chromosome number and the seed adaption to long-distance dispersal of ipomoea pes-caprae (l.)
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10017971/
https://www.ncbi.nlm.nih.gov/pubmed/36938054
http://dx.doi.org/10.3389/fpls.2023.1074935
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