期刊
PLANT CELL REPORTS
卷 33, 期 2, 页码 215-223出版社
SPRINGER
DOI: 10.1007/s00299-013-1534-y
关键词
Colchicine; FDR; Gene isolation; Nitrous oxide; Polyploidy; SDR
资金
- Export Promotion Technology Development Program, Ministry of Agriculture, Food and Rural Affairs [IPET 313009-4]
- Cooperative Research Program for Agriculture Science & Technology Development Rural Development Administration, Republic of Korea [PJ 00929609]
- National Research Foundation of Korea [22A20130000160] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- Rural Development Administration (RDA), Republic of Korea [PJ009296092014] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Efficient induction of unreduced gamete in different crops and its genetic consequences will open new avenues for plant breeding. Unreduced gamete formation derived via abnormal meiotic cell division is an important approach to polyploidy breeding. This process is considered the main driving force in spontaneous polyploids formation in nature, but the potential application of these gametes to plant breeding has not been fully exploited. An effective mechanism for their artificial induction is needed to attain greater genetic variation and enable efficient use of unreduced gametes in breeding programs. Different approaches have been employed for 2n-pollen production including interspecific hybridization, manipulation of environmental factors and treatment with nitrous oxide, trifluralin, colchicine, oryzalin and other chemicals. These chemicals can act as a stimulus to produce viable 2n pollen; however, their exact mode of action, optimum concentration and developmental stages are still not known. Identification of efficient methods of inducing 2n-gamete formation will help increase pollen germination of sterile interspecific hybrids for inter-genomic recombination and introgression breeding to develop new polyploid cultivars and increase heterozygosity among plant populations. Additionally, the application of genomic tools and identification and isolation of genes and mechanisms involved in the induction of 2n-gamete will enable increased exploitation in different plant species, which will open new avenues for plant breeding.
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