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Quantitative morphological descriptors confirm traditionally classified morphotypes of Tamarindus indica L. fruits

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Abstract
Abstract: This study used quantitative descriptors to assess morphological variation of traditionally classified tamarind fruits and its relation to ecological conditions. Tamarind trees were sampled spanning locally recognized fruit morphotypes within three ecological zones. Twelve morphological descriptors were measured on 3000 fruits and seeds. Univariate and canonical discrimiant analyses performed on morphological descriptors revealed significant differences and confirmed morphotypes distinction as perceived by local people. Nevertheless, the variance components analysis showed substantial variations within morphotypes, suggesting a significant heterogeneity within fruits traditionally classified as belonging to the same morphotypes. To get a more powerful morphological discrimination, quantitative descriptors should hence be combined with locally perceived qualitative traits (pulp taste and colour). Observed variations were significantly correlated with ecological factors. Fruits' and seeds' size and mass tended to increase with humidity and decline with aridity. Results also indicated that fruit mass is a good predicator of pulp yield, although its predicting power differed among morphotypes. Outputs from the variance component analysis suggested that pending further genetic studies, germplasm collection should be done by sampling a moderate number of trees per morphotype, to ensure capturing a wide range of genetic diversity. The observed extensive variation has provided with relevant information for further improvement programs.
Keywords
tamarind, Folk classification, ecological zones, West Africa, morphological variation, BAOBAB ADANSONIA-DIGITATA, TO-TREE VARIATION, IRVINGIA-GABONENSIS, WEST-AFRICA, PHENOTYPIC VARIATION, INDIGENOUS FRUITS, SOUTH-AFRICA, DOMESTICATION, CONSERVATION, POPULATIONS

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MLA
Fandohan , Belarmain et al. “Quantitative Morphological Descriptors Confirm Traditionally Classified Morphotypes of Tamarindus Indica L. Fruits.” GENETIC RESOURCES AND CROP EVOLUTION 58.2 (2011): 299–309. Print.
APA
Fandohan , B., Assogbadjo, A., Glèlè Kakaï, R., Kyndt, T., & Sinsin, B. (2011). Quantitative morphological descriptors confirm traditionally classified morphotypes of Tamarindus indica L. fruits. GENETIC RESOURCES AND CROP EVOLUTION, 58(2), 299–309.
Chicago author-date
Fandohan , Belarmain, Achille Assogbadjo, Romain Glèlè Kakaï, Tina Kyndt, and Brice Sinsin. 2011. “Quantitative Morphological Descriptors Confirm Traditionally Classified Morphotypes of Tamarindus Indica L. Fruits.” Genetic Resources and Crop Evolution 58 (2): 299–309.
Chicago author-date (all authors)
Fandohan , Belarmain, Achille Assogbadjo, Romain Glèlè Kakaï, Tina Kyndt, and Brice Sinsin. 2011. “Quantitative Morphological Descriptors Confirm Traditionally Classified Morphotypes of Tamarindus Indica L. Fruits.” Genetic Resources and Crop Evolution 58 (2): 299–309.
Vancouver
1.
Fandohan B, Assogbadjo A, Glèlè Kakaï R, Kyndt T, Sinsin B. Quantitative morphological descriptors confirm traditionally classified morphotypes of Tamarindus indica L. fruits. GENETIC RESOURCES AND CROP EVOLUTION. 2011;58(2):299–309.
IEEE
[1]
B. Fandohan , A. Assogbadjo, R. Glèlè Kakaï, T. Kyndt, and B. Sinsin, “Quantitative morphological descriptors confirm traditionally classified morphotypes of Tamarindus indica L. fruits,” GENETIC RESOURCES AND CROP EVOLUTION, vol. 58, no. 2, pp. 299–309, 2011.
@article{979169,
  abstract     = {Abstract: This study used quantitative descriptors to assess morphological variation of traditionally classified tamarind fruits and its relation to ecological conditions. Tamarind trees were sampled spanning locally recognized fruit morphotypes within three ecological zones. Twelve morphological descriptors were measured on 3000 fruits and seeds. Univariate and canonical discrimiant analyses performed on morphological descriptors revealed significant differences and confirmed morphotypes distinction as perceived by local people. Nevertheless, the variance components analysis showed substantial variations within morphotypes, suggesting a significant heterogeneity within fruits traditionally classified as belonging to the same morphotypes. To get a more powerful morphological discrimination, quantitative descriptors should hence be combined with locally perceived qualitative traits (pulp taste and colour). Observed variations were significantly correlated with ecological factors. Fruits' and seeds' size and mass tended to increase with humidity and decline with aridity. Results also indicated that fruit mass is a good predicator of pulp yield, although its predicting power differed among morphotypes. Outputs from the variance component analysis suggested that pending further genetic studies, germplasm collection should be done by sampling a moderate number of trees per morphotype, to ensure capturing a wide range of genetic diversity. The observed extensive variation has provided with relevant information for further improvement programs.},
  author       = {Fandohan , Belarmain and Assogbadjo, Achille and Glèlè Kakaï, Romain and Kyndt, Tina and Sinsin, Brice},
  issn         = {0925-9864},
  journal      = {GENETIC RESOURCES AND CROP EVOLUTION},
  keywords     = {tamarind,Folk classification,ecological zones,West Africa,morphological variation,BAOBAB ADANSONIA-DIGITATA,TO-TREE VARIATION,IRVINGIA-GABONENSIS,WEST-AFRICA,PHENOTYPIC VARIATION,INDIGENOUS FRUITS,SOUTH-AFRICA,DOMESTICATION,CONSERVATION,POPULATIONS},
  language     = {eng},
  number       = {2},
  pages        = {299--309},
  title        = {Quantitative morphological descriptors confirm traditionally classified morphotypes of Tamarindus indica L. fruits},
  url          = {http://dx.doi.org/10.1007/s10722-010-9575-3},
  volume       = {58},
  year         = {2011},
}

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