Genetics of qualitative traits in linseed (Linum usitatissimum L.)
The genetics of inheritance of traits and their nature is important for selection of proper breeding strategy for the improvement of valuable traits of interest in linseed. The inheritance pattern of qualitative traits was studied in F2 generation for a cross between RLC-95 x Indira alsi-32 and Surabhi x RLC-92. Their gene interaction ratios were worked out using chi-square test. The chi-square ratio of 3:1 was obtained for flower colour, growth habit and dehiscence for both the crosses representing the typical monohybrid ratio and that for shape of corolla and anther colour for both the crosses was 9:3:4 reflecting the presence of supplementary gene action for these characters. A chi-square ratio of 9:6:1 was obtained for flower aestivation for both the crosses signifying polymeric gene action. The chi-square ratio had a difference among both the populations for capsule size showing a ratio of 9:6:1 for first population derived from the cross RLC-95 x Indira alsi-32 indicating polymeric gene action and a ratio of 1:2:1 for second population derived from the cross Surabhi x RLC-92. Flower venation showed a ratio of 9:3:4 for first population (RLC-95 x Indira alsi-32) indicating supplementary gene action and a ratio of 12:3:1 for second population (Surabhi x RLC-92) indicating masking gene action.
It is certified that:
- The corresponding author is fully responsible for any disputes arising due to the publication of his/her manuscript.
- The article has been seen by all the authors who are satisfied with its form and content.
- The sequence of names of authors in the by-line is as per their relative contribution to this experiment, giving due credit to all scientists who made notable contribution to it.
- All the authors fully understand that inclusion of any other co-authors or exclusion of any co-authors is not possible once the article has been submitted to the journal.
- The corresponding author takes full responsibility for this article.
- The address of the organization where the research was conducted is given.
- The article is exclusive for this journal, and the results reported here have not been sent (and will not be sent during its consideration by this journal) for publication in any other journal.
- Authors agree to abide by the objective comments of referees and do agree to modify the article into a short note as per the recommendation, for publication in the Electronic Journal of Plant Breeding.
- If published in Electronic Journal of Plant Breeding, the copyright of this article would vest with the Indian Society of Plant Breeders, who will have the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in it, and neither we nor our legal heirs will have any claims on royalty.