QTL Mapping of Adventitious Root Formation under Flooding Conditions in Tropical Maize (Zea mays L.) Seedlings
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概要
- 論文の詳細を見る
Quantitative trait loci (QTLs) controlling adventitious root formation (ARF) on the soil surface were evaluated under flooding conditions in 110 individuals of an F_2 population derived from a cross between a dent inbred line 'B64' and a tropical Caribbean flint inbred line 'Na4'. The ARF capacity of seedlings suggested the existence of continuous variation in the F_2 population. The QTLs for ARF were located on chromosomes 3 (bin 3.07-8), 7 (bin 7.04-5) and 8 (bin 8.05). Alleles of line Na4, with a high capacity for ARF, increased ARF in the case of all the QTLs. By comparing chromosome positions of ARF loci in the B64×Na4 population with those in a B64×teosinte (Zea mays ssp. huehuetenangensis) population, the region conditioning ARF on chromosome 8 was consistent across the two populations. In the present study, overlap between the QTLs for ARF in the B64×Na4 cross and QTLs for root traits measured in aerated hydroponic culture was also observed as reported in other mapping populations.
- 日本育種学会の論文
著者
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TAKAMIZO Tadashi
National Institute of Livestock and Grassland Science
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Mano Yoshiro
National Institute of Agrobiological Sciences (NIAS)
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Mano Yoshiro
Forage Crop Breeding Res. Team National Inst. Of Livestock And Grassland Sci.
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Muraki Masanori
National Agricultural Research Center For Kyushu Okinawa Region
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Omori Fumie
National Institute of Livestock and Grassland Science
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Omori Fumie
Forage Crop Breeding Res. Team National Inst. Of Livestock And Grassland Sci.
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