Breeding effects on sensitivity of barley grain weight and quality to events of high temperature during grain filling |
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Authors: | Valeria S Passarella Roxana Savin Gustavo A Slafer |
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Institution: | (1) Division of Genetics, Indian Agricultural Research Institute, New Delhi, 110012, India;(2) Department of Genetics and Plant Breeding, CCS University, Meerut, 250 004, India;(3) 16/10 East Patel Nagar, New Delhi, 110008, India |
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Abstract: | Monogenic inheritance and linkage were established on the basis of F1 observations and analysis of 13,498 plants in 42 crosses for leaf colour, 7046 plants in 27 crosses for plant pubescence,
1926 plants in 8 crosses for number of leaflets per leaf, and 3182 plants in 12 crosses for plant height under field conditions.
Normal green colour of foliage was found to be dominant over light green, pubescent plant over glabrous, high number of leaflets
per leaf over low number of leaflets, and tall plant over dwarf. Linkage was estimated from joint segregation analysis, taking
two characters at a time in all possible combinations as significant χ2 values were recorded for these genes. Gene symbols Gl, Pub, Ph, and Hl are proposed for these four traits, respectively. The genes are arranged in the order of Ph-Gl-Pub-Hl with the map distances of 21.1, 28.9, and 17.5 cM between them. This short sequence of four linked genes spanning over 37.2
cM has been called Linkage Group 2 of lentil. |
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Keywords: | gene mapping inheritance leaf colour leaflet number lentil plant height plant pubescence |
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