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Scientia Silvae Sinicae ›› 2014, Vol. 50 ›› Issue (1): 55-62.doi: 10.11707/j.1001-7488.20140109

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WinNC2:A New Software for Genetic Analysis of Factorial Mating Design

Tong Chunfa1, Jiang Anna2, Yang Liwei1, Shi Jisen1   

  1. 1. Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education Nanjing Forestry University Nanjing 210037;
    2. College of Information Science & Technology, Nanjing Forestry University Nanjing 210037
  • Received:2013-06-06 Revised:2013-07-20 Online:2014-01-25 Published:2014-01-25
  • Contact: 施季森

Abstract:

Although a factorial mating design has been extensively applied in forest breeding programs, there exist some problems with the design in calculating the estimates of genetic parameters and some statistics, especially when the experimental data are unbalanced. A newly developed Windows-based software (WinNC2), for calculating model parameters of the genetic factorial mating design, can not only deal with balanced data but also with unbalanced data. For three different factorial mating designs, the software estimates the general and special combining abilities of parents and other fixed effects with the restricted linear model, and calculates the genetic variance components and further the heritabilities with the random effect model. In the mean time, WinNC2 can provide standard errors and statistic tests for each parameter estimate. Furthermore, WinNC2 can also present the genetic correlation coefficient between any two traits at each level of paternal, maternal, and their interaction effects. In summary, WinNC2 is a user-friendly computing tool for forest breeders to analyze genetic models of factorial mating designs.

Key words: factorial mating design, combining ability, variance components, heritability

CLC Number: