Crop Breeding Methodologies: Classic and Modern

Kang, Manjit S.; Subudhi, Prasanta K.; Baisakh, Niranjan; Priyadarshan, P. M.

doi:10.1002/9780470376447.ch1

Cited by 9 publications

(13 citation statements)

References 119 publications

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“…Doubled haploids offer manifold advantages to the plant breeder because of rapid fixation of homozygosity in just one generation, as against five to six generations in conventional breeding in some crops, increased selection efficiency, especially for recessive traits (Kang et al, 2007). Because DH lines are homozygous, with no segregation in subsequent generations, they are very useful in genetic studies involving identification and mapping of major genes/QTL.…”

Section: Doubled Haploid Technologymentioning

confidence: 99%

“…This type of variation has yet to be fully exploited in cassava breeding but some success has been achieved in some crops with limited number of somaclonal variants being released as cultivars in a few crops such as banana, maize, and tomato. Point mutations, chromosomal rearrangements, recombination, DNA methylation, altered sequence copy number, and transposable elements are believed to be the basis of somaclonal variation (Kang et al, 2007). Several factors, such as genotype age of donor plants, type of explants, and age of culture, are reported to contribute toward this effect (Veilleaux and Johnson, 1998;Jain, 2001).…”

Section: Tissue Culture In Cassava Breedingmentioning

confidence: 99%

“…Further linkage between genes and phenotype can be established by means of biochemical and genetic studies. Availability of highdensity genetic and physical maps with linkage to ESTs and gene sequence may accelerate the identification of these candidate genes for success in MAS (Kang et al, 2007). Markers have been used to generate several molecular genetic maps for cassava.…”

Section: Genome Mapping and Gene Discoverymentioning

confidence: 99%

“…It holds a lot of promise for plant breeding along with in vitro mutagenesis. Molecular understanding and availability of reliable markers for the detection of hypervariable DNA (hot spots which makes genotypes more prone to somatic variation) are key factors critical to the use of this approach as source of novel and unique genetic variation (Kang et al, 2007).…”

Section: Tissue Culture In Cassava Breedingmentioning

confidence: 99%

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Cassava: A Basic Energy Source in the Tropics

Cock

1982

Science

196

105

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PREFACEThis Handbook is the result of a combined effort by several current and previous cassava researchers at CIAT to review and summarize the most important results of cassava research during the past 40 years. Most of the chapters are based on the various presentations during the Regional Cassava Training Course, held in Thailand from October 6 to 17, 2008. This course was organized upon the realization that many people that were actively involved with cassava research in the 1970s and 80s, both at CIAT and in national programs, have now retired or will soon do so, and that a whole new generation of cassava researchers are currently being hired to take their place.As cassava is now becoming a very important, and mostly industrial, crop in Asia, there are many new opportunities, but also a host of new problems and challenges. These include the appearance in Asia of new cassava diseases and pests; the decreasing availability and increasing cost of rural labor, resulting in the need for partial or complete mechanization of cassava production; the rapidly increasing demand for cassava roots for production of food, feed and fuel, and the unavailability in many countries of new land for any expansion of cassava area, thus requiring a rapid increase in cassava yields to increase supplies. This requires a renewed focus on cassava research for the development of new higher-yielding varieties and more sustainable production practices.While many cassava researchers in national programs in Asia received individual or group training at CIAT-Colombia during the 1970s and 80s, this training was greatly reduced during the following two decades due to funding limitations. Thus, the objective of the Regional Cassava Training Course in 2008 was to provide a new training opportunity for young scientists in Asian countries, and to hand over the knowledge and experience of the older cassava researchers, mostly from CIAT, to a new generation that will have to face the new challenges. Thus, the course was taught mostly by current or already retired CIAT cassava researchers, while the 60-plus participants of the course included cassava researchers from Cambodia, China, East Timor, India, Indonesia, Lao PDR, Malaysia, Myanmar, the Philippines, Thailand and Vietnam. The training course not only provided knowledge -from physiology and biotechnology to animal feeding and production of fuelethanol -but also an opportunity for people from different institutions and countries to get to know each other, which will greatly facilitate future collaboration.Course participants returned home with a CD containing the PowerPoint presentations of the course. However, it was felt that a more comprehensive review of all the topics covered was warranted, as this would provide more in-depth knowledge for those working in the various specialized fields. Most of this information is available in many refereed journals, in workshop proceedings and old CIAT annual reports, but many of these are now out of print or otherwise difficult to obtain. Thus, the Cas...

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Section: Doubled Haploid Technologymentioning

confidence: 99%

Section: Tissue Culture In Cassava Breedingmentioning

confidence: 99%

Section: Genome Mapping and Gene Discoverymentioning

confidence: 99%

Section: Tissue Culture In Cassava Breedingmentioning

confidence: 99%

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Cassava: A Basic Energy Source in the Tropics

Cock

1982

Science

196

105

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“…(BONETTI, 1983;HIROMOTO;VELLO, 1986;PALUDZYSZYN FILHO;ALMEIDA, 1993;PRIOLLI et al, 2004). É necessário que a produção de soja no cenário brasileiro e mundial continue aumentando, melhorando a eficiência na produção de alimentos, fibras e biocombustíveis para atender a demanda crescente (KANG, 2007 NETO, 2001;PRIOLLI et al, 2002).…”

Section: Introductionunclassified

Resposta à seleção em duas populações de soja com diferentes proporções de cada genitor

Fumes¹

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Pulse Crops: Biotechnological Strategies to Enhance Abiotic Stress Tolerance

Ganeshan

Gaur

Chibbar

2012

Improving Crop Productivity in Sustainable Agriculture

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Pulse crops are leguminous plants whose grains are used exclusively for food. In Asia, Africa and many developing countries, pulses constitute a major source of dietary protein and extensive efforts are being undertaken to improve pulse production. However, due to global climate change, abiotic stresses are increasingly impeding crop production. Conventional plant breeding has contributed tremendously in the development of improved crop varieties, but other biotechnological tools are needed to complement breeding efforts to accelerate development of pulse crop varieties tolerant to abiotic stresses such as drought, salinity, high and low temperatures. Genomics resources such as molecular markers have started to expedite markerassisted breeding and quantitative trait loci (QTL) introgression in chickpea for drought tolerance. Similarly, transcriptomic resources such as expressed-sequence tags, and expression profiling such as microarrays also contribute to further understand abiotic stress tolerance in pulses and for the development of genic markers. In pulse crops, development of in vitro regeneration techniques and transgenics has been slow and more resources need to be allocated to expedite their development. In vitro regeneration techniques are also useful for embryo rescue of wide hybrids. Transgenics, although controversial, offer a faster means to develop abiotic stress tolerant pulse crops. While enhancement of abiotic stress tolerance in pulse crops implies higher returns in the developed countries, in developing countries it will contribute to food and nutritional security, and sustainable production. It is therefore encouraging that ICARDA, ICRISAT and CGIAR (Generation Challenge Programme) invest extensively into using new technologies for improvement of pulse crops in these regions of low-input farming.

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Crop Breeding Methodologies: Classic and Modern

Cited by 9 publications

References 119 publications

Cassava: A Basic Energy Source in the Tropics

Cassava: A Basic Energy Source in the Tropics

Resposta à seleção em duas populações de soja com diferentes proporções de cada genitor

Pulse Crops: Biotechnological Strategies to Enhance Abiotic Stress Tolerance

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