کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8408800 | 1545078 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Wheat breeding in the hometown of Chinese Spring
ترجمه فارسی عنوان
پرورش گندم در زادگاه چینی بهار
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کلمات کلیدی
سرنوشت چند نسل پیشرفته نسل متقابل، گندم هگزاپلوئید مصنوعی، گاستر نامنظم،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
چکیده انگلیسی
The common wheat landrace Chinese Spring (CS) was made famous by the work of Ernie Sears, a great cytogenetist, who developed a number of CS-based aneuploid series that were used to identify individual wheat chromosomes. Based on this, a standard karyotype and nomenclature system was developed for wheat chromosomes that allowed wheat researchers to analyze and manipulate the wheat genome with unprecedented precision and efficiency. Nevertheless, not much is known about the utilization of CS at its hometown, Chengdu in Sichuan province, during early wheat breeding activity. In this review, we follow the speculation that CS is a selection from the Cheng-du-guang-tou (CDGT) landrace. We provide a description of how CDGT became a founder landrace for wheat breeding activities in early times. We show that CDGT-derived varieties were reinforced genetically by crosses to six more exotic parents. These varieties remained the major elite cultivar for several decades. Later, synthetic hexaploid wheats were introduced into the breeding program, firstly using those from CIMMYT and later using materials produced with local tetraploid wheat and goat grass. Finally, we discuss the strategies and future directions to improve wheat yield and resistance through an expanded genetic basis, especially by recapturing lost genetic variations from landraces and related wild species, a process that may set an example for wheat breeders in China and elsewhere.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Crop Journal - Volume 6, Issue 1, February 2018, Pages 82-90
Journal: The Crop Journal - Volume 6, Issue 1, February 2018, Pages 82-90
نویسندگان
Dengcai Liu, Lianquan Zhang, Ming Hao, Shunzong Ning, Zhongwei Yuan, Shoufen Dai, Lin Huang, Bihua Wu, Zehong Yan, Xiujin Lan, Youliang Zheng,