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Intraspecific variation in growth response to drought stress across geographic locations and genetic groups in Coffea canephora.

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Title: Intraspecific variation in growth response to drought stress across geographic locations and genetic groups in Coffea canephora.
Authors: Kiwuka, Catherine1,2 (AUTHOR) kiwukakathyrn@gmail.com, Vos, Jan1 (AUTHOR), Douma, Jacob C.1 (AUTHOR), Musoli, Pascal3 (AUTHOR), Mulumba, John W.2 (AUTHOR), Poncet, Valérie4 (AUTHOR), Anten, Niels P. R.1 (AUTHOR)
Source: Ecology & Evolution (20457758). Jan2023, Vol. 13 Issue 1, p1-17. 17p.
Subject Terms: *Droughts, *Drought management, *Drought tolerance, *Water purification, Coffee, Leaf area, Leaf growth
Geographic Terms: Uganda
Abstract: Uganda lies within the drier end of the natural distribution range of Coffea canephora and contains unexplored genetic material that could be drought‐adapted and useful for developing climate‐resilient varieties. Using water treatment: (i) ample and (ii) restricted‐water, the response of 148 genotypes were studied comprising wild, feral and cultivated C. canephora. Biomass allocation, standing leaf area and leaf area growth data were collected. Linear mixed effect models and PCA were used to the analyze effect of water treatment on genotypes from different: (i) cultivation status, (ii) genetic groups and (iii) locations. We also assessed the relationship between drought tolerance for relative growth rate in leaf area (RGRA), total number of leaves (TNL), total leaf area (TLA) and total leaf dry weight (TLDW) of genotypes at final harvest. Restricted‐water reduced RGRA across genetic groups (3.2–32.5%) and locations (7.1–36.7%) but not cultivation status. For TNL, TLA and TLDW, genotypes that performed well in ample‐water performed worse under restricted‐water, indicating growth‐tolerance trade‐off. Drought tolerance in RGRA and TNL were negatively correlated with wetness index suggesting some degree of adaptation to local climate. Findings indicate a growth‐tolerance trade‐off within this tropical tree species and drought tolerance of Uganda's C. canephora is somewhat associated with local climate. [ABSTRACT FROM AUTHOR]
Copyright of Ecology & Evolution (20457758) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Intraspecific variation in growth response to drought stress across geographic locations and genetic groups in Coffea canephora.
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  Data: <searchLink fieldCode="AR" term="%22Kiwuka%2C+Catherine%22">Kiwuka, Catherine</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> kiwukakathyrn@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Vos%2C+Jan%22">Vos, Jan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Douma%2C+Jacob+C%2E%22">Douma, Jacob C.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Musoli%2C+Pascal%22">Musoli, Pascal</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Mulumba%2C+John+W%2E%22">Mulumba, John W.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Poncet%2C+Valérie%22">Poncet, Valérie</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Anten%2C+Niels+P%2E+R%2E%22">Anten, Niels P. R.</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Ecology+%26+Evolution+%2820457758%29%22">Ecology & Evolution (20457758)</searchLink>. Jan2023, Vol. 13 Issue 1, p1-17. 17p.
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  Data: *<searchLink fieldCode="DE" term="%22Droughts%22">Droughts</searchLink><br />*<searchLink fieldCode="DE" term="%22Drought+management%22">Drought management</searchLink><br />*<searchLink fieldCode="DE" term="%22Drought+tolerance%22">Drought tolerance</searchLink><br />*<searchLink fieldCode="DE" term="%22Water+purification%22">Water purification</searchLink><br /><searchLink fieldCode="DE" term="%22Coffee%22">Coffee</searchLink><br /><searchLink fieldCode="DE" term="%22Leaf+area%22">Leaf area</searchLink><br /><searchLink fieldCode="DE" term="%22Leaf+growth%22">Leaf growth</searchLink>
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  Label: Geographic Terms
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  Data: <searchLink fieldCode="DE" term="%22Uganda%22">Uganda</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Uganda lies within the drier end of the natural distribution range of Coffea canephora and contains unexplored genetic material that could be drought‐adapted and useful for developing climate‐resilient varieties. Using water treatment: (i) ample and (ii) restricted‐water, the response of 148 genotypes were studied comprising wild, feral and cultivated C. canephora. Biomass allocation, standing leaf area and leaf area growth data were collected. Linear mixed effect models and PCA were used to the analyze effect of water treatment on genotypes from different: (i) cultivation status, (ii) genetic groups and (iii) locations. We also assessed the relationship between drought tolerance for relative growth rate in leaf area (RGRA), total number of leaves (TNL), total leaf area (TLA) and total leaf dry weight (TLDW) of genotypes at final harvest. Restricted‐water reduced RGRA across genetic groups (3.2–32.5%) and locations (7.1–36.7%) but not cultivation status. For TNL, TLA and TLDW, genotypes that performed well in ample‐water performed worse under restricted‐water, indicating growth‐tolerance trade‐off. Drought tolerance in RGRA and TNL were negatively correlated with wetness index suggesting some degree of adaptation to local climate. Findings indicate a growth‐tolerance trade‐off within this tropical tree species and drought tolerance of Uganda's C. canephora is somewhat associated with local climate. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Ecology & Evolution (20457758) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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        Value: 10.1002/ece3.9715
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      – Code: eng
        Text: English
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        PageCount: 17
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      – SubjectFull: Droughts
        Type: general
      – SubjectFull: Drought management
        Type: general
      – SubjectFull: Drought tolerance
        Type: general
      – SubjectFull: Water purification
        Type: general
      – SubjectFull: Coffee
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      – SubjectFull: Leaf area
        Type: general
      – SubjectFull: Leaf growth
        Type: general
      – SubjectFull: Uganda
        Type: general
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      – TitleFull: Intraspecific variation in growth response to drought stress across geographic locations and genetic groups in Coffea canephora.
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              Text: Jan2023
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              Y: 2023
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