| 000 | 04481nab a22004937a 4500 | ||
|---|---|---|---|
| 999 |
_c29254 _d29254 |
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| 001 | G96815 | ||
| 003 | MX-TxCIM | ||
| 005 | 20230926162145.0 | ||
| 008 | 201105s2012 cc |||p|op||| 00| 0 chi d | ||
| 022 | 0 | _a0496-3490 | |
| 024 | 8 | _ahttps://doi.org/10.3724/SP.J.1006.2012.01155 | |
| 040 | _aMX-TxCIM | ||
| 041 | _achi | ||
| 090 | _aCIS-6749 | ||
| 100 | 0 |
_aYang Fang-Ping _916892 |
|
| 245 | 1 | 0 | _aDistribution of Allelic variation for vernalization, photoperiod, and dwarfing genes and their effects on growth period and plant height among cultivars from major wheat producing countries |
| 260 |
_aBeijing (China) : _bScience Press, _c2012. |
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| 500 | _aPeer review | ||
| 500 | _aOpen Access | ||
| 500 | _aAbstract in Chinese and English | ||
| 500 | _aPeer-review: No - Open Access: Yes|http://211.155.251.148:8080/zwxb/EN/column/column81.shtml | ||
| 520 | _aTo efficiently use exotic resources in Chinese wheat breeding programs, we investigated the heading date, maturity date, and plant height of 100 representative cultivars collected from 14 countries at eight locations in China, and detected the allelic variations of vernalization loci VRN-1 and VRN-B3, photoperiod gene Ppd-D1a,and dwarfing genes Rht-B1b and Rht-D1b by means of molecular markers. The frequencies of vernalization loci were 8.0% for Vrn-A1a, 21.0% for Vrn-B1, 21.0% for Vrn-D1 and 64.0% for vrn-A1+vrn-B1+ vrn-D1, except for the absence of dominant allele Vrn-B3 in all tested materials. Dominant vernalization alleles Vrn-A1a, Vrn-B1, and Vrn-D1 were mainly observed in cultivars from Chinese spring wheat region, Italy, India, Canada, Mexico, and Australia; whereas, cultivars carrying all recessive alleles at the four vernalization loci and vrn-A1+vrn-D1+Vrn-B1+vrn-B3 genotypewere mostly found in cultivars from Chinese winter wheat region, United States (US) winter wheat region, Russia winter wheat region, United Kingdom (UK), France, Germany, Romania, Turkey, and Hungary. All cultivars headed normally when sown in autumn. Cultivars with dominant alleles showed earlier heading date than those with recessive alleles, and genotypes with two or more dominant alleles showed additive effects. Some European and US cultivars with recessive genes at the four vernalization loci could not mature in Yangling and Chengdu. Under spring-sown condition, the cultivars with dominant vernalization alleles showed high heading frequency; in contrast, most cultivars with recessive alleles failed to head. Gene Ppd-D1a was distributed mainly in cultivars from China, France, Romania, Russia, Mexico, Australia, and India with the total frequency of 68%. Most cultivars with Ppd-D1b were from high latitude regions, such as UK, Germany, Hungary, and Canada. The Ppd-D1a genotypes appeared to head earlier than the Ppd-D1b genotypes. Daylight condition had no effect on maturity of most Ppd-D1a genotypes, but short daylight condition resulted in failing mature in most Ppd-D1b genotypes. The frequencies of dwarfing genes Rht-B1b and Rht-D1b were 43.0% and 35.0% in the cultivars tested, respectively. Rht-B1b was mainly observed in cultivars from US, Romania, Turkey, Italy, Mexico, and Australia, while Rht-D1b had high frequency in varieties from China, Germany, UK, Italy, and India. Generally, cultivars from one country contain either Rht-B1b or Rht-D1b, andthe frequencies of Rht-B1b and Rht-D1b were very low in cultivars from high latitude regions. The effect of Rht-B1b, Rht-D1b and Ppd-D1a on reducing plant height was significant, of which Rht-B1b and Rht-D1b exhibited an additive effect. | ||
| 536 | _aGlobal Wheat Program | ||
| 546 | _aText in Chinese | ||
| 594 | _aINT2411 | ||
| 595 | _aCSC | ||
| 650 | 7 |
_aTriticum aestivum _2AGROVOC _91296 |
|
| 650 | 7 |
_aVernalization _2AGROVOC _98740 |
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| 650 | 7 |
_aGenes _2AGROVOC _93563 |
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| 650 | 7 |
_aGenetic markers _2AGROVOC _91848 |
|
| 700 | 0 |
_aXian-Chun Xia _91860 |
|
| 700 | 0 |
_aYong Zhang _91857 |
|
| 700 | 0 |
_aZhang Xiao-Ke _916893 |
|
| 700 | 0 |
_aJianjun Liu _91688 |
|
| 700 | 1 |
_aTang Jian-Wei _916894 |
|
| 700 | 0 |
_aYang Xue-Ming _916895 |
|
| 700 | 0 |
_aZhang Jun-Ru _916896 |
|
| 700 | 0 |
_aLiu Qian _916897 |
|
| 700 | 0 |
_aShizhao Li _91845 |
|
| 700 | 1 |
_aHe Zhonghu _gGlobal Wheat Program _8INT2411 _9838 |
|
| 773 | 0 |
_tActa Agronomica Sinica _gv. 38, no. 7, p. 1155-1166 _dBeijing (China) : Science Press, 2012. _wu446116 _x0496-3490 |
|
| 856 | 4 |
_yOpen Access through DSpace _uhttps://hdl.handle.net/10883/21433 |
|
| 942 |
_cJA _2ddc _n0 |
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