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- https://bio.libretexts.org/Courses/Gettysburg_College/02%3A_Principles_of_Ecology_-_Gettysburg_College_ES_211/04%3A_Phylogenies_and_the_History_of_Life/4.03%3A_Determining_Evolutionary_RelationshipsScientists must collect accurate information that allows them to make evolutionary connections among organisms. Similar to detective work, scientists must use evidence to uncover the facts. In the cas...Scientists must collect accurate information that allows them to make evolutionary connections among organisms. Similar to detective work, scientists must use evidence to uncover the facts. In the case of phylogeny, evolutionary investigations focus on two types of evidence: morphologic (form and function) and genetic.
- https://bio.libretexts.org/Bookshelves/Introductory_and_General_Biology/Principles_of_Biology/03%3A_Chapter_3/23%3A_Evolutionary_Relationships/23.02%3A_Determining_Evolutionary_RelationshipsOnly some of the organisms in Figure \(\PageIndex{4}\) have this trait, and to those that do, it is called a shared derived character because this trait derived at some point but does not include all ...Only some of the organisms in Figure \(\PageIndex{4}\) have this trait, and to those that do, it is called a shared derived character because this trait derived at some point but does not include all of the ancestors in the tree. Starting with all of the homologous traits in a group of organisms, scientists look for the most obvious and simple order of evolutionary events that led to the occurrence of those traits.
- https://bio.libretexts.org/Bookshelves/Botany/Introduction_to_Botany_(Shipunov)/10%3A_Methods_of_Taxonomy_and_Diagnostics/10.01%3A_CladisticsThe goal of the analysis is the creation of a phylogeny tree (cladogram) which becomes the basis of classification. Below is a short instruction which explains the basics of the cladistic analysis on ...The goal of the analysis is the creation of a phylogeny tree (cladogram) which becomes the basis of classification. Below is a short instruction which explains the basics of the cladistic analysis on the artificial example of several “families” of plants. For example, Betaceae and Gammaceae have equal number of synapomorphies but Betaceae have only one character different from Alphaceae it is sensible to attach it first, and then attach Gammaceae:
- https://bio.libretexts.org/Workbench/Evolution_Chapters/04%3A_Diversity_of_Life/4.03%3A_Determining_Evolutionary_RelationshipsScientists must collect accurate information that allows them to make evolutionary connections among organisms. Similar to detective work, scientists must use evidence to uncover the facts. In the cas...Scientists must collect accurate information that allows them to make evolutionary connections among organisms. Similar to detective work, scientists must use evidence to uncover the facts. In the case of phylogeny, evolutionary investigations focus on two types of evidence: morphologic (form and function) and genetic.
- https://bio.libretexts.org/Courses/Harrisburg_Area_Community_College/BIOL_108%3A_Biology_for_Non-Majors_Lab_Manual/07%3A_Lab_5b-_Classification_and_Tree_Thinking/7.04%3A_Part_2-_CladisticsA cladogram is a hypothesis about the evolutionary relationships between the organisms depicted on the tree. In addition, the nodes (indicated by the lowercase letters and the dots) represent the comm...A cladogram is a hypothesis about the evolutionary relationships between the organisms depicted on the tree. In addition, the nodes (indicated by the lowercase letters and the dots) represent the common ancestors of the terminal organisms. Note that at each branch a derived characteristic is indicated that separates the left branch from the right branch of the evolutionary tree.
- https://bio.libretexts.org/Workbench/BIOL-11B_Clovis_Community_College/02%3A_Organizing_and_Classifying_Life/2.02%3A_Determining_Evolutionary_RelationshipsIf a characteristic is found in the ancestor of a group, it is considered a shared ancestral character, known as a plesiomorphy, because all of the organisms in the taxon or clade have that trait. Onl...If a characteristic is found in the ancestor of a group, it is considered a shared ancestral character, known as a plesiomorphy, because all of the organisms in the taxon or clade have that trait. Only some of the organisms in Figure 20.10 have this trait, and to those that do, it is called a shared derived character, known as an apomorphy, because this trait derived at some point but does not include all of the ancestors in the tree.
- https://bio.libretexts.org/Courses/Coalinga_College/Introduction_to_Plant_Science_(Hochman_Adler)/04%3A_Taxonomy/4.03%3A_Methods_of_Taxonomy_and_Diagnostics/4.3.01%3A_CladisticsThe goal of the analysis is the creation of a phylogeny tree (cladogram) which becomes the basis of classification. Below is a short instruction which explains the basics of the cladistic analysis on ...The goal of the analysis is the creation of a phylogeny tree (cladogram) which becomes the basis of classification. Below is a short instruction which explains the basics of the cladistic analysis on the artificial example of several “families” of plants. For example, Betaceae and Gammaceae have equal number of synapomorphies but Betaceae have only one character different from Alphaceae it is sensible to attach it first, and then attach Gammaceae:
- https://bio.libretexts.org/Courses/Gettysburg_College/01%3A_Ecology_for_All/07%3A_Phylogenies_and_the_History_of_Life/7.03%3A_Determining_Evolutionary_RelationshipsScientists must collect accurate information that allows them to make evolutionary connections among organisms. Similar to detective work, scientists must use evidence to uncover the facts. In the cas...Scientists must collect accurate information that allows them to make evolutionary connections among organisms. Similar to detective work, scientists must use evidence to uncover the facts. In the case of phylogeny, evolutionary investigations focus on two types of evidence: morphologic (form and function) and genetic.
- https://bio.libretexts.org/Workbench/General_Ecology_Ecology/Chapter_7%3A_The_History_of_Life_Systematics_and_Phylogeny/7.7%3A_Phylogeny_and_CladisticsScientists collect information that allows them to make evolutionary connections between organisms. Similar to detective work, scientists must use evidence to uncover the facts. In the case of phyloge...Scientists collect information that allows them to make evolutionary connections between organisms. Similar to detective work, scientists must use evidence to uncover the facts. In the case of phylogeny, evolutionary investigations focus on two types of evidence: morphologic (form and function) and genetic.
- https://bio.libretexts.org/Courses/Reedley_College/Biology_for_Science_Majors_I/19%3A_Phylogenies_and_the_History_of_Life/19.03%3A_Determining_Evolutionary_RelationshipsScientists must collect accurate information that allows them to make evolutionary connections among organisms. Similar to detective work, scientists must use evidence to uncover the facts. In the cas...Scientists must collect accurate information that allows them to make evolutionary connections among organisms. Similar to detective work, scientists must use evidence to uncover the facts. In the case of phylogeny, evolutionary investigations focus on two types of evidence: morphologic (form and function) and genetic.
- https://bio.libretexts.org/Courses/Norco_College/BIO_5%3A_General_Botany_(Friedrich_Finnern)/16%3A_Systematics/16.04%3A_Determining_Evolutionary_RelationshipsScientists must collect accurate information that allows them to make evolutionary connections among organisms. Similar to detective work, scientists must use evidence to uncover the facts. In the cas...Scientists must collect accurate information that allows them to make evolutionary connections among organisms. Similar to detective work, scientists must use evidence to uncover the facts. In the case of phylogeny, evolutionary investigations focus on two types of evidence: morphologic (form and function) and genetic.
