Phenotypic evolution of the wild progenitor of cultivated barley (Hordeum vulgare L. subsp. spontaneum (K. Koch) Thell.) across bioclimatic regions in Jordan
Climate change affects the evolutionary potential and the survival of wild plant populations by acting on fitness traits. Resurrection approach was applied to investigate the phenotypic changes during the evolution of the wild progenitor of cultivated barley, Hordeum vulgare L. subsp. s pontaneum (K...
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Published in: | Genetic resources and crop evolution Vol. 69; no. 4; pp. 1485 - 1507 |
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Main Authors: | , , , , , , , , |
Format: | Journal Article |
Language: | English |
Published: |
Dordrecht
Springer Netherlands
01-04-2022
Springer Nature B.V |
Subjects: | |
Online Access: | Get full text |
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Summary: | Climate change affects the evolutionary potential and the survival of wild plant populations by acting on fitness traits. Resurrection approach was applied to investigate the phenotypic changes during the evolution of the wild progenitor of cultivated barley,
Hordeum vulgare
L. subsp.
s
pontaneum
(K. Koch.) Thell. in Jordan. We compared 40
Hordeum spontaneum
populations collected in Jordan in 1991 with 40
Hordeum spontaneum
populations collected from the same sites in 2014. In the comparison we included seven
Hordeum vulgare
checks (one local landrace and six improved varieties). The correlation analysis between the phenotypic and eco-geographical data based on Principal Component Analysis and Mantel test showed that the populations were aggregated according to their ecological geographical pattern in two groups with a significant (
p
< 0.0001) correlation between groups. Four heritable traits, namely plant height, biological yield, number of tillers, and awn length, determined the phenotypic structure of the populations. The two populations collected at 23 years distance, diverged in two distinctive phenotypic structure categories; a conserved structure and an evolved structure with a reduction in the phenotypic trait diversity in the population collected in 2014. These results reveal the value of combining phenotypic and environmental data to understand the evolution and adaptation of the population to climate change over a long period and the consequences on the wild progenitor of cultivated barley collection to avoid loss of genetic materials. |
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ISSN: | 0925-9864 1573-5109 |
DOI: | 10.1007/s10722-021-01314-1 |