Integration of quantitative and qualitative descriptors for genetic diversity studies of watermelon accessions

Lima, Mariana Neto Rosa; Queiróz, M. A. de; Oliveira, Anne Emanuelle Flor da Silva; Neto, Izaias da Silva Lima; Oliveira, R. S. de

doi:10.21475/ajcs.17.11.08.pne510

Cited by 5 publications

(3 citation statements)

References 20 publications

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“…Except agronomic important traits, great diversity is present in morphological traits as well, which can be useful in breeding studies (LIMA et al, 2017). Diversity of these traits is used in the process of creating and registration of new varieties where it is necessary to evaluate them by Distinctness, Uniformity and Stability (DUS) testing (ANGADI and JAGADEESHA, 2018).…”

Section: Introductionmentioning

confidence: 99%

Variability of morphological traits in sunflower inbred lines

et al. 2020

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Except agronomic important traits, great diversity in sunflower is present in morphological traits which are very useful in breeding studies. The main objective of the paper was to determine genetic diversity among the 110 inbred lines in the collection of Institute of Field and Vegetable Crops Novi Sad (IFVCNS) by screening 34 morphological traits according to a list of descriptors of the International Union for the Protection of New Varieties of Plants (UPOV) as to conduct the Distinctness, Uniformity and Stability Test (DUS). The diversity of morphological traits was estimated by Shannon diversity index (H?) and the diversity of sunflower inbred lines was performed by homogeneity analysis (HOMALS) as well as discriminatory power of the traits. The values of the traits in Shannon diversity index were the highest (H?=0.99) for height of the tip of the blade compared to insertion of petiole and bract position, while branching, head shape and seed color showed low diversity (H?>0.1). The uniformity of inbred lines distribution determined discriminative power of descriptors. Disk flower anthocyanin coloration of stigma, hypocotyl anthocyanin coloration and intensity, leaf blistering, leaf serration, seed stripes on and between the margins showed the strongest discriminatory power. According to these six traits, the collection of inbred lines was divided into two main groups and three subgroups which better explained the relationships among the various inbred lines. Inbred lines showed the great variability of morphological traits in the whole collection and also among the inbred lines from the same type of use.

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Section: Introductionmentioning

confidence: 99%

Variability of morphological traits in sunflower inbred lines

et al. 2020

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“…There are both quantitative and qualitative morphological traits those play vital roles in classification of individuals. Qualitative morphological traits are subjected to comparatively less environmental influence and have mono or oligogenic genetic control (Lima et al, 2017). They do not have quantitative values and might be binary or multicategory.…”

Section: Introductionmentioning

confidence: 99%

Genetic Variability Assessment of Sorghum (Sorghum bicolor (L.) Moench) Germplasm Accessions using Qualitative Morphological Descriptors

Kaluthanthri,

Dasanayaka

2019

JTFE

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Sorghum (Sorghum bicolor (L.) Moench) is considered as the fifth most important cereal crop in the world. It is well adapted to a range of environmental conditions. This study was based on twenty six sorghum germplasm accessions conserved at the seed gene bank of Plant Genetic Resource Center, Gannoruwa, Sri Lanka. The evaluation of the morphological diversity was based on 14 qualitative morphological traits outlined by the International Plant Genetic Resources Institute. Qualitative data recorded from morphological traits were analyzed using PROC CLUSTER procedure of SAS software. The clustering pattern of studied sorghum accessions based on qualitative morphological markers comprised of seven major clusters. Clustering pattern based on the qualitative traits depicts the geographical origin of the studied accessions. This can be explained by the fact that qualitative traits are less influenced by the environment. In principle, qualitative data are expected to provide additional information on hierarchical units. Observation of a considerably high number of clusters consolidates that principle. There were 13 polymorphic qualitative morphological traits with respect to all the studied sorghum germplasm accessions. Cluster I, II, III, IV, V and VI had one or several features shared by all the member accessions those cannot be found in all the members of any other clusters. Also there were unique features restricted to cluster II, III, V and VI. This study reveals sufficient genetic relatedness of studied sorghum germplasm accessions which will meaningful in the conservation and breeding programs of the crops.

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“…Consequently, both qualitative and quantitative traits are widely used for characterization of watermelon genetic resources for genetic analysis and breeding (Lima et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Genetic characterization of citron watermelon (citrullus lanatus var. citroides [L.H. Bailey] mansf. ex greb.) and development of experimental hybrids.

Ngwepe

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Integration of quantitative and qualitative descriptors for genetic diversity studies of watermelon accessions

Cited by 5 publications

References 20 publications

Variability of morphological traits in sunflower inbred lines

Variability of morphological traits in sunflower inbred lines

Genetic Variability Assessment of Sorghum (Sorghum bicolor (L.) Moench) Germplasm Accessions using Qualitative Morphological Descriptors

Genetic characterization of citron watermelon (citrullus lanatus var. citroides [L.H. Bailey] mansf. ex greb.) and development of experimental hybrids.

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