| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
Takahashi, Hokkaido Nail. Agric. Exp. Stn., Sapporo, 062 Japan
Kyushu Natl. Agric. Exp. Stn., Nishigoshi, Kumamoto, 861-11 Japan
* Corresponding author.
Soybean [Glycine max (L.) Merr.] is sensitive to chilling temperatures (
15°C) at flowering resulting in reduced seed yield and physical quality (brown pigmentation near the hilum region). In Japan, soybean cultivars with yellow hilum color are preferred to those with brown hilum color. However, of the two, the genotypes with yellow hilum are more sensitive to chilling temperatures. Because a combination between brown pubescence and yellow hilum cause a discoloration of the seed coats, in northern Japan, all genotypes with yellow hilum have gray pubescence. This study was conducted to determine if pubescence color, controlled by gene T/t, was related to chilling tolerance in a pair of soybean lines near-isogenic for gene T/t and if the near-isogenic lines differed for N2-fixing ability under chilling conditions. Two determinate near-isogenic lines for gene T/t, To7B with allele T (brown pubescence and brown hilum) and To7G with allele t (gray pubescence and buff hilum), were exposed to 15°C (day/night) in a phytotron at flowering. Seed coat pigmentation was scored by exposing plants to 15°C for 2 wk beginning at 8 d after anthesis. Plant height, acetylene-reducing activity (nitrogenase activity), maturity date, and seed yield were compared by exposing plants to ]15°C for 4 wk beginning at anthesis. Under control conditions, only plant height was different between the lines. By exposing plants to 15°C, seed coat pigmentation near the hilum region increased with the age of flowers at the time of chilling treatment in To7G. No pigmentation was observed in the seeds of To7B. Nitrogenase activity and seed yield were less and maturity date was later in To7G than To7B only under chilling treatment. These results suggest that allele T is associated with chilling tolerance due to either pleiotropy or close linkage.
Received for publication January 30, 1995.
This article has been cited by other articles:
|
|
 |
|
  S. M. Githiri, D. Yang, N. A. Khan, D. Xu, T. Komatsuda, and R. Takahashi QTL Analysis of Low Temperature-Induced Browning in Soybean Seed Coats J. Hered., July 9, 2007; (2007) esm042v1. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J. H. Hill, N. C. Koval, J. M. Gaska, and C. R. Grau Identification of Field Tolerance to Bean Pod Mottle and Soybean Mosaic Viruses in Soybean Crop Sci., January 22, 2007; 47(1): 212 - 218. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. Iwashina, E. R. Benitez, and R. Takahashi Analysis of Flavonoids in Pubescence of Soybean Near-isogenic Lines for Pubescence Color Loci J. Hered., September 1, 2006; 97(5): 438 - 443. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. Toda, M. Akasaka, E. G. Dubouzet, S. Kawasaki, and R. Takahashi Structure of Flavonoid 3'-Hydroxylase Gene for Pubescence Color in Soybean Crop Sci., September 23, 2005; 45(6): 2212 - 2217. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. Takahashi, E. R. Benitez, H. Funatsuki, and S. Ohnishi Soybean Maturity and Pubescence Color Genes Improve Chilling Tolerance Crop Sci., May 27, 2005; 45(4): 1387 - 1393. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
E. R. Benitez, H. Funatsuki, Y. Kaneko, Y. Matsuzawa, S. W. Bang, and R. Takahashi Soybean Maturity Gene Effects on Seed Coat Pigmentation and Cracking in Response to Low Temperatures Crop Sci., November 1, 2004; 44(6): 2038 - 2042. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. Yang, T. Nakamura, N. Ohtsubo, K. Takahashi, J. Abe, and R. Takahashi Seed Coat Cracking in Soybean Isolines for Pubescence Color and Maturity Crop Sci., January 1, 2002; 42(1): 71 - 75. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. Takahashi, H. Kurosaki, S. Yumoto, O. K. Han, and J. Abe Genetic and Linkage Analysis of Cleistogamy in Soybean J. Hered., January 1, 2001; 92(1): 89 - 92. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
R. Takahashi and J. Abe Soybean Maturity Genes Associated with Seed Coat Pigmentation and Cracking in Response to Low Temperatures Crop Sci., November 1, 1999; 39(6): 1657 - 1662. [Abstract] [Full Text]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| The SCI Journals | Agronomy Journal | Vadose Zone Journal | |||
| Journal of Natural Resources and Life Sciences Education |
Soil Science Society of America Journal | ||||
| Journal of Plant Registrations | Journal of Environmental Quality |
The Plant Genome | |||
