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ID 5
Eprint ID
5
FullText URL
Title Alternative
Growth Characters and Genetic Inheritance in Tomato cv. 'First' Musant with Short Internodes Induced by Seed Irradiation with Ion Beam
Author
Yuasa, Toshihiko
Abstract
Tomato(Lycopersicon esculentum L.) cv. 'First' mutants with short internodes grew vigorously. The number of leaves slightly increased and the shape of the leaves was similar to wild type. In inflorescence morphology, the number of flowers increased and the length of peduncle and pedicel were shorter. In fruit characteristics, weight per fruit, total yield, sugar and acid contents were similar to wild type. But a lot of malformed fruit set was observed in the mutant line, due to the number of locules and short length of the peduncle and pedisel. The segregation ratio of the short internodes character fitted 3:1 of normal:short ,hence it was considered to be contralled by a single pair of recessive genes. Allelism with alresdy known dwart gene was examined by crossing with 'Alisa Craig', which had a symbolized dwart gene, br or bu. Thereby, it was revealed that bu and short internodes gene ware in the same gene locus. This mutant line has no negative effect on plant growth and fruit yield, but was unsuitable for use as fresh fruit by reason of malformed fruits. These results indicated the possibility of breeding of a new cultivar with bu gene derived from 'First'. Since the mutant with short internodes is derived from 'First', which is already a commercial variety with excellent characteristics, raising a new commercial variety with short internodes trait may not take a long time.
Keywords
bu gene
ion beam
mutant
short internodes
tomato
Published Date
2005-02-01
Publication Title
岡山大学農学部学術報告
Publication Title Alternative
Scientific reports of the Faculty of Agriculture, Okayama University
Volume
volume94
Issue
issue1
Publisher
岡山大学農学部
Publisher Alternative
Faculty of Agriculture,Okayama University
Start Page
25
End Page
29
ISSN
0474-0254
NCID
AN00033029
Content Type
Departmental Bulletin Paper
language
日本語
File Version
publisher
Refereed
False
Eprints Journal Name
srfa