| Genetic origins and climate-induced erosion in economically important Asian walnuts | |
| Fan, Peng-Zhen; Zhu, Guang-Fu; Wambulwa, Moses C.; Milne, Richard I.; Wu, Zeng-Yuan; Luo, Ya-Huang; Shahi Shavvon, Robabeh7; Jump, Alistair S.; Maity, Debabrata9; Gao, Lian-Ming; Qi, Hai-Ling; Wu, Hong-Yu; Kong, Xing3; Khan, Raees; Yan, Li-Jun; Turuspekov, Yerlan12; Li, De-Zhu; Liu, Jie1,2 | |
| 2025 | |
| Source Publication | CONSERVATION BIOLOGY
 |
| ISSN | 0888-8892 |
| Pages | - |
| Abstract | The global climate is undergoing unprecedented changes, posing significant threats to species persistence. However, the spatiotemporal impacts on genetic diversity remain poorly understood, hindering species conservation and management. Walnuts, generally referred to as Juglans regia and J. sigillata, are economically vital in Asia, but little is known about their genetic origins and how the species will be affected by future climate change. Using 31 microsatellites, we genotyped 5282 individuals from 233 populations of walnuts in Asia. We assessed genetic diversity patterns and demographic history and investigated potential future genetic erosion risks. Genetic diversity of walnuts was high in the Himalaya and Hengduan Mountains. The 2 species diverged during the Pleistocene (around 1.41 Ma BP), and J. regia contained 2 genetic groups (JR1 and JR2). The JR2 group had the lowest diversity and likely arrived in northern China around 9.77 ka BP, perhaps via human transport. The Western Himalaya likely served both as a glacial refugium and the center of origin for J. regia, and the Eastern Himalaya appears to have been the refugium for J. sigillata. The 2 species appear to have hybridized in the Central Himalaya and the Sichuan basin and surroundings, forming two distinct hybrid zones. Our results indicate that genetic diversity will be reduced by up to 9.03% due to range loss under future climate change and dramatic genetic structure turnover in the Himalaya and Hengduan Mountains. In situ conservation in the Himalaya is essential for safeguarding genetic diversity and adaptive potential in Asian walnuts, while ex situ preservation of genetically unique wild germplasm, coupled with its integration into breeding programs, will enhance climate resilience. The findings advance our understanding of the origin of Asian walnuts and how future climatic change may affect their genetic diversity, offering a model for conservation and breeding strategies in other tree species facing similar threats. Origen gen & eacute;tico y erosi & oacute;n clim & aacute;tica en nogales asi & aacute;ticos con importancia econ & oacute;mica [(sic)(sic)] (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).(sic)(sic), (sic)(sic)(sic)(sic)(sic)(Juglans regia)(sic)(sic)(sic)(sic)(J. sigillata), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).(sic)(sic)(sic)(sic)(sic)31(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)233(sic)(sic)(sic)(sic)5282(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)((sic)141(sic)(sic)(sic)), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(JR1(sic)JR2).JR2(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)9.77 (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic),(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic),(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)9.03%(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic);(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic), (sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic). |
| Keyword | climate change ecological niche modeling genetic diversity genetic erosion Juglans regia landscape connectivity cambio clim & aacute tico conectividad entre paisajes diversidad gen & eacute tica erosi & oacute n gen & eacute tica modelos de nicho ecol & oacute gico Juglans sigillata (sic)(sic)(sic)(sic) (sic)(sic)(sic)(sic)(sic) (sic)(sic)(sic)(sic) (sic)(sic) (sic)(sic)(sic) (sic)(sic)(sic)(sic)(sic) |
| Subject Area | Biodiversity Conservation ; Ecology ; Environmental Sciences |
| DOI | 10.1111/cobi.70125 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:001556393600001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/15608 |
| Collection | 2012年后新成立研究组 |
| Affiliation | 1.Chinese Acad Sci, Kunming Inst Bot, CAS Key Lab Plant Divers & Biogeog East Asia, Kunming, Peoples R China 2.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Kunming, Peoples R China 3.Chinese Acad Sci, Kunming Inst Bot, Yunnan Key Lab Crop Wild Relat Om, Kunming, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China 5.Wambulwa, Moses C.] South Eastern Kenya Univ, Sch Sci & Comp, Dept Life Sci, Kitui, Kenya 6.Milne, Richard I.] Univ Edinburgh, Inst Mol Plant Sci, Sch Biol Sci, Edinburgh, Scotland 7.Chinese Acad Sci, Kunming Inst Bot, Lijiang Forest Biodivers Natl Observat & Res Stn, Lijiang, Peoples R China 8.Univ Yasuj, Fac Sci, Dept Biol, Yasuj, Iran 9.Jump, Alistair S.] Univ Stirling, Sch Nat Sci, Biol & Environm Sci, Stirling, Scotland 10.Univ Calcutta, Dept Bot, Kolkata, India 11.Chinese Acad Sci, Ctr Integrat Conservat, Mengla, Peoples R China 12.Chinese Acad Sci, Yunnan Key Lab Conservat Trop Rainforests & Asian, Xishuangbanna Trop Bot Garden, Mengla, Peoples R China 13.Inst Plant Biol & Biotechnol, Lab Mol Genet, Alma Ata, Kazakhstan |
| Recommended Citation GB/T 7714 | Fan, Peng-Zhen,Zhu, Guang-Fu,Wambulwa, Moses C.,et al. Genetic origins and climate-induced erosion in economically important Asian walnuts[J]. CONSERVATION BIOLOGY,2025:-. |
| APA | Fan, Peng-Zhen.,Zhu, Guang-Fu.,Wambulwa, Moses C..,Milne, Richard I..,Wu, Zeng-Yuan.,...&Liu, Jie.(2025).Genetic origins and climate-induced erosion in economically important Asian walnuts.CONSERVATION BIOLOGY,-. |
| MLA | Fan, Peng-Zhen,et al."Genetic origins and climate-induced erosion in economically important Asian walnuts".CONSERVATION BIOLOGY (2025):-. |
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