نتایج جستجو برای: in breeding programs

تعداد نتایج: 17002543  

Journal: :Genetics 2017
Christina Lehermeier Simon Teyssèdre Chris-Carolin Schön

A crucial step in plant breeding is the selection and combination of parents to form new crosses. Genome-based prediction guides the selection of high-performing parental lines in many crop breeding programs which ensures a high mean performance of progeny. To warrant maximum selection progress, a new cross should also provide a large progeny variance. The usefulness concept as measure of the g...

ژورنال: :مجله گیاهشناسی ایران 2011
سید علی اندی وحیده ناظری ذبیح اله زمانی جواد هادیان

در این مطالعه، تنوع مورفولوژیکی 144 ژنوتیپ از 24 جمعیت گیاه مرزنجوش (origanum vulgare )، که شامل دو زیرگونه (subsp. viride و subsp. vulgare) بودند، برای تعیین صفات ارزشمند به منظور انجام برنامه های اصلاحی آینده و اهداف دارویی مورد ارزیابی قرار گرفت. در این بررسی، 32 صفت مورفولوژیکی کمی و کیفی مطالعه شدند. نتایج، تنوع بالایی از صفات مهم را در بین جمعیت های آنالیز شده نشان داد. نتایج همبستگی ساده...

2005

When comparing different breeding programs the first question usually asked is "what are the expected responses to selection of the various plans". A considerable part of this course will focus on methods of designing breeding programs, which maximize response to selection. Although breeding plans are often quite complex, most can usually be understood in terms of a few simple principles of res...

2016
Shangli Shi Lili Nan Kevin F. Smith John W. Forster

This paper reviews the current status, methodology, achievements, and prospects of alfalfa (Medicago sativa L.) breeding in China. There are 77 cultivars that have been registered in the country, these include 36 cultivars bred through breeding programs, 17 introduced from overseas, 5 domesticated from wild ecotypes, and 19 through regional collection/breeding programs. Cultivars have been sele...

2015
Poothappillai Kasinathan Hong Wei Tianhao Xiang Jose A. Molina John Metzger Diane Broek Sivakanthan Kasinathan David C. Faber Mark F. Allan

Genomic selection (GS) approaches, in combination with reproductive technologies, are revolutionizing the design and implementation of breeding programs in livestock species, particularly in cattle. GS leverages genomic readouts to provide estimates of breeding value early in the life of animals. However, the capacity of these approaches for improving genetic gain in breeding programs is limite...

2013
Paul Visendi Jacqueline Batley David Edwards

Cereal crops form the bulk of the world's food sources, and thus their importance cannot be understated. Crop breeding programs increasingly rely on high-resolution molecular genetic markers to accelerate the breeding process. The development of these markers is hampered by the complexity of some of the major cereal crop genomes, as well as the time and cost required. In this review, we address...

2018
Ana G. Pérez Lorenzo León Carlos Sanz Raúl de la Rosa

Olive growing is mainly based on traditional varieties selected by the growers across the centuries. The few attempts so far reported to obtain new varieties by systematic breeding have been mainly focused on improving the olive adaptation to different growing systems, the productivity and the oil content. However, the improvement of oil quality has rarely been considered as selection criterion...

نواب‌پور, سعید , صبوری, حسین, صبوری, عاطفه,

After wheat, rice is the second most important cereal grown in Iran that improvement of its economical characteristics always has important role in the rice breeding programs. In order to estimate the genetic parameters and identify salt-tolerant varieties and hybrids in seedling stage, seven female parents (Shah-pasand, Gharib, Tarom Mahalli, Ahlami Tarom, Hashemi and Dom Sepid) and four male ...

احمدپناه, جواد, قوی حسین زاده, نوید,

In this study, selection strategies were simulated to find optimal selection strategy in Japanese quails. Breeding goal was consisted of body weight and egg weight traits. Effects of using genetic markers related to carcass weight were investigated by five different selection strategies. In this case, breeding goal included body weight, egg weight and carcass weight. Deterministic simulation, b...

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