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Survival in the Tro...
Survival in the Tropics despite isolation, inbreeding and asexual reproduction : insights from the genome of the world's southernmost poplar (Populus ilicifolia)
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- Chen, Zeyuan (författare)
- Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Coll Life Sci, Minist Educ, Key Lab Bioresource & Ecoenvironm, Chengdu 610065, Peoples R China
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- Ai, Fandi (författare)
- Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Coll Life Sci, Minist Educ, Key Lab Bioresource & Ecoenvironm, Chengdu 610065, Peoples R China
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- Zhang, Junlin (författare)
- Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Coll Life Sci, Minist Educ, Key Lab Bioresource & Ecoenvironm, Chengdu 610065, Peoples R China
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- Ma, Xinzhi (författare)
- Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Coll Life Sci, Minist Educ, Key Lab Bioresource & Ecoenvironm, Chengdu 610065, Peoples R China
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- Yang, Wenlu (författare)
- Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Coll Life Sci, Minist Educ, Key Lab Bioresource & Ecoenvironm, Chengdu 610065, Peoples R China
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- Wang, Weiwei (författare)
- Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Coll Life Sci, Minist Educ, Key Lab Bioresource & Ecoenvironm, Chengdu 610065, Peoples R China
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- Su, Yutao (författare)
- Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Coll Life Sci, Minist Educ, Key Lab Bioresource & Ecoenvironm, Chengdu 610065, Peoples R China
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- Wang, Mingcheng (författare)
- Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Coll Life Sci, Minist Educ, Key Lab Bioresource & Ecoenvironm, Chengdu 610065, Peoples R China
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- Yang, Yongzhi (författare)
- Lanzhou Univ, State Key Lab Grassland Agroecosyst, Inst Innovat Ecol, Lanzhou 730000, Peoples R China; Lanzhou Univ, Coll Life Sci, Lanzhou 730000, Peoples R China
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- Mao, Kangshan (författare)
- Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Coll Life Sci, Minist Educ, Key Lab Bioresource & Ecoenvironm, Chengdu 610065, Peoples R China
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- Wang, Qingfeng (författare)
- Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Hubei, Peoples R China
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- Lascoux, Martin (författare)
- Uppsala universitet,Växtekologi och evolution
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- Liu, Jianquan (författare)
- Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Coll Life Sci, Minist Educ, Key Lab Bioresource & Ecoenvironm, Chengdu 610065, Peoples R China; Lanzhou Univ, State Key Lab Grassland Agroecosyst, Inst Innovat Ecol, Lanzhou 730000, Peoples R China; Lanzhou Univ, Coll Life Sci, Lanzhou 730000, Peoples R China
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- Ma, Tao (författare)
- Sichuan Univ, State Key Lab Hydraul & Mt River Engn, Coll Life Sci, Minist Educ, Key Lab Bioresource & Ecoenvironm, Chengdu 610065, Peoples R China
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(creator_code:org_t)
- 2020-04-03
- 2020
- Engelska.
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Ingår i: The Plant Journal. - : Wiley. - 0960-7412 .- 1365-313X. ; 103:1, s. 430-442
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Species are becoming extinct at unprecedented rates as a consequence of human activity. Hence it is important to understand the evolutionary dynamics of species with already small population sizes. Populus ilicifolia is a vulnerable poplar species that is isolated from other poplar species and is uniquely adapted to the Tropics. It has a very limited size, reproduces partly clonally and is therefore an excellent case study for conservation genomics. We present here the first annotated draft genome of P. ilicifolia, characterize genome-wide patterns of polymorphisms and compare those to other poplar species with larger natural ranges. P. ilicifolia experienced a more prolonged and severe decline of effective population size (Ne) and signs of genetic erosion than any other poplar species with which it was compared. At present, the species has the lowest genome-wide genetic diversity, the highest abundance of long runs of homozygosity, high inbreeding levels as well as a high overall accumulation of deleterious variants. However, more effective purging of severely deleterious variants and adaptation to the Tropics may have contributed to its survival. Hence, in spite of its limited genetic variation, it is certainly worth pursuing the conservation efforts of this unique species.
Ämnesord
- NATURVETENSKAP -- Biologi -- Genetik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Genetics (hsv//eng)
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Nyckelord
- conservation genomics
- genetic diversity
- inbreeding
- genetic load
- tropical adaptation
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Chen, Zeyuan
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Ai, Fandi
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Zhang, Junlin
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Ma, Xinzhi
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Yang, Wenlu
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Wang, Weiwei
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visa fler...
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Su, Yutao
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Wang, Mingcheng
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Yang, Yongzhi
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Mao, Kangshan
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Wang, Qingfeng
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Lascoux, Martin
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Liu, Jianquan
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Ma, Tao
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Uppsala universitet