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Differentiation in the genetic basis of stem trichome development between cultivated tetraploid cotton species
BACKGROUND: Cotton stem trichomes and seed fibers are each single celled structures formed by protrusions of epidermal cells, and were found sharing the overlapping molecular mechanism. Compared with fibers, cotton stem trichomes are more easily observed, but the molecular mechanisms underlying thei...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7905624/ https://www.ncbi.nlm.nih.gov/pubmed/33632125 http://dx.doi.org/10.1186/s12870-021-02871-4 |
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author | Yuan, Rong Cao, Yuefen Li, Tengyu Yang, Feng Yu, Li Qin, Yuan Du, Xiongming Liu, Fang Ding, Mingquan Jiang, Yurong Zhang, Hua Paterson, Andrew H. Rong, Junkang |
author_facet | Yuan, Rong Cao, Yuefen Li, Tengyu Yang, Feng Yu, Li Qin, Yuan Du, Xiongming Liu, Fang Ding, Mingquan Jiang, Yurong Zhang, Hua Paterson, Andrew H. Rong, Junkang |
author_sort | Yuan, Rong |
collection | PubMed |
description | BACKGROUND: Cotton stem trichomes and seed fibers are each single celled structures formed by protrusions of epidermal cells, and were found sharing the overlapping molecular mechanism. Compared with fibers, cotton stem trichomes are more easily observed, but the molecular mechanisms underlying their development are still poorly understood. RESULTS: In this study, Gossypium hirsutum (Gh) and G. barbadense (Gb) were found to differ greatly in percentages of varieties/accessions with glabrous stems and in trichome density, length, and number per trichopore. Gh varieties normally had long singular and clustered trichomes, while Gb varieties had short clustered trichomes. Genetic mapping using five F(2) populations from crosses between glabrous varieties and those with different types of stem trichomes revealed that much variation among stem trichome phenotypes could be accounted for by different combinations of genes/alleles on Chr. 06 and Chr. 24. The twenty- six F(1) generations from crosses between varieties with different types of trichomes had varied phenotypes, further suggesting that the trichomes of tetraploid cotton were controlled by different genes/alleles. Compared to modern varieties, a greater proportion of Gh wild accessions were glabrous or had shorter and denser trichomes; whereas a smaller proportion of Gb primitive accessions had glabrous stems. A close correlation between fuzz fiber number and stem trichome density was observed in both Gh and Gb primitive accessions and modern varieties. CONCLUSION: Based on these findings, we hypothesize that stem trichomes evolved in parallel with seed fibers during the domestication of cultivated tetraploid cotton. In addition, the current results illustrated that stem trichome can be used as a morphological index of fiber quality in cotton conventional breeding. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12870-021-02871-4. |
format | Online Article Text |
id | pubmed-7905624 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-79056242021-02-25 Differentiation in the genetic basis of stem trichome development between cultivated tetraploid cotton species Yuan, Rong Cao, Yuefen Li, Tengyu Yang, Feng Yu, Li Qin, Yuan Du, Xiongming Liu, Fang Ding, Mingquan Jiang, Yurong Zhang, Hua Paterson, Andrew H. Rong, Junkang BMC Plant Biol Research Article BACKGROUND: Cotton stem trichomes and seed fibers are each single celled structures formed by protrusions of epidermal cells, and were found sharing the overlapping molecular mechanism. Compared with fibers, cotton stem trichomes are more easily observed, but the molecular mechanisms underlying their development are still poorly understood. RESULTS: In this study, Gossypium hirsutum (Gh) and G. barbadense (Gb) were found to differ greatly in percentages of varieties/accessions with glabrous stems and in trichome density, length, and number per trichopore. Gh varieties normally had long singular and clustered trichomes, while Gb varieties had short clustered trichomes. Genetic mapping using five F(2) populations from crosses between glabrous varieties and those with different types of stem trichomes revealed that much variation among stem trichome phenotypes could be accounted for by different combinations of genes/alleles on Chr. 06 and Chr. 24. The twenty- six F(1) generations from crosses between varieties with different types of trichomes had varied phenotypes, further suggesting that the trichomes of tetraploid cotton were controlled by different genes/alleles. Compared to modern varieties, a greater proportion of Gh wild accessions were glabrous or had shorter and denser trichomes; whereas a smaller proportion of Gb primitive accessions had glabrous stems. A close correlation between fuzz fiber number and stem trichome density was observed in both Gh and Gb primitive accessions and modern varieties. CONCLUSION: Based on these findings, we hypothesize that stem trichomes evolved in parallel with seed fibers during the domestication of cultivated tetraploid cotton. In addition, the current results illustrated that stem trichome can be used as a morphological index of fiber quality in cotton conventional breeding. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12870-021-02871-4. BioMed Central 2021-02-25 /pmc/articles/PMC7905624/ /pubmed/33632125 http://dx.doi.org/10.1186/s12870-021-02871-4 Text en © The Author(s) 2021 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data. |
spellingShingle | Research Article Yuan, Rong Cao, Yuefen Li, Tengyu Yang, Feng Yu, Li Qin, Yuan Du, Xiongming Liu, Fang Ding, Mingquan Jiang, Yurong Zhang, Hua Paterson, Andrew H. Rong, Junkang Differentiation in the genetic basis of stem trichome development between cultivated tetraploid cotton species |
title | Differentiation in the genetic basis of stem trichome development between cultivated tetraploid cotton species |
title_full | Differentiation in the genetic basis of stem trichome development between cultivated tetraploid cotton species |
title_fullStr | Differentiation in the genetic basis of stem trichome development between cultivated tetraploid cotton species |
title_full_unstemmed | Differentiation in the genetic basis of stem trichome development between cultivated tetraploid cotton species |
title_short | Differentiation in the genetic basis of stem trichome development between cultivated tetraploid cotton species |
title_sort | differentiation in the genetic basis of stem trichome development between cultivated tetraploid cotton species |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7905624/ https://www.ncbi.nlm.nih.gov/pubmed/33632125 http://dx.doi.org/10.1186/s12870-021-02871-4 |
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