Tropical plants evolve faster than their temperate relatives: a case from the bamboos (Poaceae: Bambusoideae) based on chloroplast genome data
The evolutionary speed hypothesis (ESH) states that the molecular evolutionary rates of plants in the warm areas are higher than that in the cool areas. Nevertheless, largely due to the scarcity of molecular data from lower taxonomic lineages, ESH remains elusive in plants. In this study, we compreh...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2020-01-01
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| Series: | Biotechnology & Biotechnological Equipment |
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| Online Access: | http://dx.doi.org/10.1080/13102818.2020.1773312 |
| _version_ | 1819203356479979520 |
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| author | Wencai Wang Siyun Chen Wei Guo Yongquan Li Xianzhi Zhang |
| author_facet | Wencai Wang Siyun Chen Wei Guo Yongquan Li Xianzhi Zhang |
| author_sort | Wencai Wang |
| collection | DOAJ |
| description | The evolutionary speed hypothesis (ESH) states that the molecular evolutionary rates of plants in the warm areas are higher than that in the cool areas. Nevertheless, largely due to the scarcity of molecular data from lower taxonomic lineages, ESH remains elusive in plants. In this study, we comprehensively conducted genome-wide comparative analyses of a total of 76 chloroplast (cp) genomes of the bamboos (Poaceae: Bambusoideae), with 10 of them newly generated, to test the ESH via investigating the potential association between their cp genome evolutionary rate and geographical distribution pattern. The results showed extreme heterogeneity of the evolutionary rate within the bamboos, with the lowest value found in temperate bamboos (tribe Arundinarieae) being approximately 1/4 of that in the tropical ones (tribe Olyreae). All the 91 non-coding loci and 75 coding loci evolve consistently faster in tribe Olyreae than that in tribe Arundinarieae. Most of the non-coding (82 out of 91) and coding (73 out of 75) loci in the tropical woody bamboos (tribe Bambuseae) also evolve faster than those in the temperate woody bamboos (tribe Arundinarieae). Moreover, the split of tropical and temperate bamboos was apparently accompanied with the change of cp genome evolutionary rate. This is by far the first case using cp genome data to support the ESH via showing the tropical plants evolve faster than their closely related temperate ones, and will shed new light on our understanding of ESH and the adaptation of plants. |
| first_indexed | 2024-12-23T04:18:37Z |
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| issn | 1310-2818 1314-3530 |
| language | English |
| last_indexed | 2024-12-23T04:18:37Z |
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| series | Biotechnology & Biotechnological Equipment |
| spelling | doaj.art-db4fad11105c4b0999b0227a85cb5ceb2022-12-21T18:00:19ZengTaylor & Francis GroupBiotechnology & Biotechnological Equipment1310-28181314-35302020-01-0134148249310.1080/13102818.2020.17733121773312Tropical plants evolve faster than their temperate relatives: a case from the bamboos (Poaceae: Bambusoideae) based on chloroplast genome dataWencai Wang0Siyun Chen1Wei Guo2Yongquan Li3Xianzhi Zhang4Molecular Genetics Group, Science and Technology Innovation Center, Guangzhou University of Chinese MedicineGermplasm Bank of Wild Species, Kunming Institute of Botany, Chinese Academy of SciencesDepartment of Horticulture, College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and EngineeringDepartment of Horticulture, College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and EngineeringDepartment of Horticulture, College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and EngineeringThe evolutionary speed hypothesis (ESH) states that the molecular evolutionary rates of plants in the warm areas are higher than that in the cool areas. Nevertheless, largely due to the scarcity of molecular data from lower taxonomic lineages, ESH remains elusive in plants. In this study, we comprehensively conducted genome-wide comparative analyses of a total of 76 chloroplast (cp) genomes of the bamboos (Poaceae: Bambusoideae), with 10 of them newly generated, to test the ESH via investigating the potential association between their cp genome evolutionary rate and geographical distribution pattern. The results showed extreme heterogeneity of the evolutionary rate within the bamboos, with the lowest value found in temperate bamboos (tribe Arundinarieae) being approximately 1/4 of that in the tropical ones (tribe Olyreae). All the 91 non-coding loci and 75 coding loci evolve consistently faster in tribe Olyreae than that in tribe Arundinarieae. Most of the non-coding (82 out of 91) and coding (73 out of 75) loci in the tropical woody bamboos (tribe Bambuseae) also evolve faster than those in the temperate woody bamboos (tribe Arundinarieae). Moreover, the split of tropical and temperate bamboos was apparently accompanied with the change of cp genome evolutionary rate. This is by far the first case using cp genome data to support the ESH via showing the tropical plants evolve faster than their closely related temperate ones, and will shed new light on our understanding of ESH and the adaptation of plants.http://dx.doi.org/10.1080/13102818.2020.1773312molecular evolutionevolutionary speed hypothesischloroplast genomerate heterogeneitybamboos |
| spellingShingle | Wencai Wang Siyun Chen Wei Guo Yongquan Li Xianzhi Zhang Tropical plants evolve faster than their temperate relatives: a case from the bamboos (Poaceae: Bambusoideae) based on chloroplast genome data Biotechnology & Biotechnological Equipment molecular evolution evolutionary speed hypothesis chloroplast genome rate heterogeneity bamboos |
| title | Tropical plants evolve faster than their temperate relatives: a case from the bamboos (Poaceae: Bambusoideae) based on chloroplast genome data |
| title_full | Tropical plants evolve faster than their temperate relatives: a case from the bamboos (Poaceae: Bambusoideae) based on chloroplast genome data |
| title_fullStr | Tropical plants evolve faster than their temperate relatives: a case from the bamboos (Poaceae: Bambusoideae) based on chloroplast genome data |
| title_full_unstemmed | Tropical plants evolve faster than their temperate relatives: a case from the bamboos (Poaceae: Bambusoideae) based on chloroplast genome data |
| title_short | Tropical plants evolve faster than their temperate relatives: a case from the bamboos (Poaceae: Bambusoideae) based on chloroplast genome data |
| title_sort | tropical plants evolve faster than their temperate relatives a case from the bamboos poaceae bambusoideae based on chloroplast genome data |
| topic | molecular evolution evolutionary speed hypothesis chloroplast genome rate heterogeneity bamboos |
| url | http://dx.doi.org/10.1080/13102818.2020.1773312 |
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