Measure Crossover Interference

This webpage calculates quantities related to crossover interference for a single type of chromosomes from multiple samples of measured crossover positions. Positions need to be specified in fractions of the total chromosome length, so they are numbers between 0 and 1. The chromosome length can be specified in units of micrometer (µm) for cytological data, units of megabases (Mb) for genetic data, or left set to 1 to obtain results normalized to the chromosome length.

Input

• Chromosome length:
• Observed normalized crossover positions (comma-separated positions; one line per sample):
  
  Load example data (A. thalania, wild-type, male, chromosome 1) from Durand et al., Nat. Commun. (2022)
• Bin count for calculating Coefficient of Coincidence

Output

• Several quantities below will be reported as mean ± standard error, where the standard error is determined using bootstrapping 1000 times. Consequently, the standard error will change slightly with each calculation.
• Interference length:
• Additional data:
• Coefficient of Coincidence (CoC):