Josefa Grasiela Silva Santana, Rogério Figueiredo Daher, Moisés Ambrósio, Cleudiane Lopes Leite, Ana Kesia Faria Vidal, Rafael Souza Freitas, Maxwel Rodrigues Nascimento, José Antonio Lamônica Netto, João Victor Bousquet Duarte, João Esdras Calaça Farias, Alexandre Gomes de Souza
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引用次数: 0
Abstract
The analysis of phenotypic variation patterns is pivotal in breeding programs when developing new cultivars to fully exploit allelic richness for specific purposes. In this study, we assessed 182 genotypes of elephant grass from partially inbred families, focusing on six phenotypic traits (dry matter yield—DMY, dry matter percentage—DM, number of tillers—NT, plant height—PH, stem diameter—SD, and leaf blade width—LW). Our goal was to quantify the genetic diversity necessary for the management of elephant grass breeding for energy production. Both univariate analysis (descriptive statistics) and multivariate analysis (Principal Component Analysis and Hierarchical Clustering on Principal Components) were employed to investigate the diversity across partially inbred S1 family genotypes of elephant grass. Significant phenotypic variation was observed between the evaluated traits, with DMY, NT, and LW exhibiting the most pronounced differences. DMY, PH, and NT displayed positive correlations and demonstrated a robust ability to distinguish between the genotypes. Cluster analysis revealed four distinct groups of genotypes. The identification of taller plants with a higher number of tillers offers a valuable means of discriminating superior genotypes. This, in turn, enhances the selection of partial lines to develop new hybrid elephant grass cultivars with the aim of increasing energy biomass production.
期刊介绍:
Genetic Resources and Crop Evolution is devoted to all aspects of plant genetic resources research. It publishes original articles in the fields of taxonomical, morphological, physiological, biochemical, genetical, cytological or ethnobotanical research of genetic resources and includes contributions to gene-bank management in a broad sense, that means to collecting, maintenance, evaluation, storage and documentation.
Areas of particular interest include:
-crop evolution
-domestication
-crop-weed relationships
-related wild species
-history of cultivated plants including palaeoethnobotany.
Genetic Resources and Crop Evolution also publishes short communications, e.g. newly described crop taxa, nomenclatural notes, reports of collecting missions, evaluation results of gene-bank material etc. as well as book reviews of important publications in the field of genetic resources.
Every volume will contain some review articles on actual problems. The journal is the internationalized continuation of the German periodical Die Kulturpflanze, published formerly by the Institute of Plant Genetics and Crop Plant Research at Gatersleben, Germany.
All contributions are in the English language and are subject to peer reviewing.