Arid
DOI10.17138/TGFT(5)117-128
Effect of pollination mode on progeny of Panicum coloratum var. makarikariense: Implications for conservation and breeding
Armando, Lorena V.1,2; Tomas, Maria A.1; Garayalde, Antonio F.2,3; Carrera, Alicia D.4
通讯作者Armando, Lorena V.
来源期刊TROPICAL GRASSLANDS-FORRAJES TROPICALES
ISSN2346-3775
出版年2017
卷号5期号:3页码:117-128
英文摘要

Panicum coloratum var. makarikariense, a perennial grass native to Africa, is adapted to a wide range of soil and climatic conditions with potential to be used as forage in tropical and semi-arid regions around the world. Our objective was to understand how the pollination mode affects viable seed production and further survival of the progeny. We evaluated self-and open-pollinated progenies from different accessions by measuring the seed production of the parents and their germination performance, germination rate and seedling survival. Parents and progeny were also fingerprinted with Simple Sequence Repeats (SSR). Progeny produced through open-pollination resulted in significantly more filled seeds and superior seedling survival than self-pollination. These results indicate that accessions studied here rely heavily on cross-pollination, whereas the contribution of self-pollinated offspring to the population is likely to be low. SSR profiles showed that, on average, 85% of the progeny (arising from cross-pollination) possessed paternal specific markers and 100% of them were genetically different from the maternal genotype. All plants examined had 4x = 36 chromosomes. Overall, our findings indicate that var. makarikariense is able to generate highly polymorphic progeny through segregation and recombination. This study provides reference information for the formulation of appropriate strategies for pasture germplasm management, conservation and development of breeding programs.


英文关键词Breeding systems pollination genetic variation germination polyploidy seed production
类型Article
语种英语
国家Argentina
收录类别SCI-E
WOS记录号WOS:000413194900002
WOS关键词SWITCHGRASS ; MARKERS ; INCOMPATIBILITY ; POPULATION ; KLEINGRASS ; EVOLUTION ; APOMIXIS ; SYSTEM ; L.
WOS类目Agriculture, Dairy & Animal Science ; Agronomy ; Plant Sciences
WOS研究方向Agriculture ; Plant Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/202741
作者单位1.INTA, EEA Rafaela, Santa Fe, Argentina;
2.Consejo Nacl Invest Cient & Tecn, CCT, CERZOS, Ctr Recursos Nat Renovables Zona Semiarida, Bahia Blanca, Buenos Aires, Argentina;
3.Univ Nacl Sur, Dept Matemat, Bahia Blanca, Buenos Aires, Argentina;
4.Univ Nacl Sur, Dept Agron, Bahia Blanca, Buenos Aires, Argentina
推荐引用方式
GB/T 7714
Armando, Lorena V.,Tomas, Maria A.,Garayalde, Antonio F.,et al. Effect of pollination mode on progeny of Panicum coloratum var. makarikariense: Implications for conservation and breeding[J],2017,5(3):117-128.
APA Armando, Lorena V.,Tomas, Maria A.,Garayalde, Antonio F.,&Carrera, Alicia D..(2017).Effect of pollination mode on progeny of Panicum coloratum var. makarikariense: Implications for conservation and breeding.TROPICAL GRASSLANDS-FORRAJES TROPICALES,5(3),117-128.
MLA Armando, Lorena V.,et al."Effect of pollination mode on progeny of Panicum coloratum var. makarikariense: Implications for conservation and breeding".TROPICAL GRASSLANDS-FORRAJES TROPICALES 5.3(2017):117-128.
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