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Home > Archive>Volume 24, Issue 5, 2023 >1426-1434. DOI:10.13430/j.cnki.jpgr.20230224005
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Mapping of QTL for Domestication-related Traits Using SSR Markers in Adzuki Bean
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Affiliation:

1.College of Agronomy，Heilongjiang Bayi Agricultural University，Daqing 163319;2.Institute of Crop Sciences， Chinese Academy of Agricultural Sciences， Beijing 100081;3.Institute of Rice Research， Guangxi Academy of Agricultural Sciences， Nanning 530007;4.Institute of Cereal and Oil Crops， Hebei Academy of Agriculture and Forestry Sciences， Shijiazhuang 050035

Fund Project:

China Agriculture Research System of MOF and MARA-Food Legumes （CARS-08）

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    Abstract:

    Wild adzuki bean are important gene resources for genetic improvement of cultivars， however， pod shattering and hard seededness are classical characters of wild genotypes， and are disadvantage traits in breeding. In the present study， we used a recombination inbred line （RIL） population， developed from a cross between a cultivar and a wild genotype（Vigna angularis var. nipponensis）， to identify QTL loci related with pod shattering and hard seededness using SSR markers. The results showed that the ratio of pod shattering （PS）， the number of pod curling （NPC） and the ratio of hard seededness （HSN） were not fitful for normal distribution， but had continuous variation. Eleven linkage groups were constructed using 111 SSR markers with a total length of 3813.5 cM and 34.35 cM for intervals. A total of 19 QTLs were detected for PS and NPC in 2021 and 13 were detected in 2022. Two QTLs were repeatedly detected to be related with the NPC and 3 were with PS. There were 4 QTLs that related with the hard seededness and the one on LG11 were also repeatedly detected with PS in 2021 and 2022， and NPC in 2022. The present results provided insights for fine mapping of these domesticate-related traits and investigating the functional mechanisms.

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History
  • Received:February 24,2023
  • Revised:March 07,2023
  • Online: August 30,2023
  • Published: August 30,2023
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