QTL Analysis on Apical Spikelet Abortion in Rice

WANG Bin1, LIU  Hemei2,  MAO  Bigang3, GAO  Suwei3,  XU  Hongbin1,  GE Jiangui1,*

doi:10.3969/j.issn.10017216.2011.05.016

Chinese Journal OF Rice Science >

2011 , Vol. 25 >Issue 5: 561 - 564

DOI: https://doi.org/10.3969/j.issn.10017216.2011.05.016

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QTL Analysis on Apical Spikelet Abortion in Rice

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¹ Institute of Lu′an Agricultural Sciences, Anhui Province, Lu′an 237000, China; ²Xinxiang Academy of Agricultural Sciences, Henan Province, Xinxiang 453003, China; ³Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China;

Received date: 2011-01-11

Revised date: 2011-04-08

Online published: 2011-09-10

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Abstract

Quantitative trait loci (QTL) analysis on abortion of apical spikelet was conducted by using recombinant inbred lines (RILs) derived from a cross between indica variety Guichao 2 and Koshihikari under three environments. The abortion trait of apical spikelets in the recombinant inbred lines demonstrated a continuous distribution together with transgressive segregations. Six QTLs were mapped on the chromosomes 1,2,3,5,6 and 7 in RIL populations, explaining 4.49% -9.74% phenotypic variations. Among these QTLs, qASA2 was detected at the interval flanked by the markers RM3355 and RM263 on chromosome 2 under different environments. qASA1 was mapped between the markers RM6451 and OSR13 on chromosome 1 with its positive alleles from Guichao 2.

Key words： rice; font-family: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">︱apical ; spikelet abortion; font-family: 宋体; mso-bidi-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">︱; quantitative trait locus

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WANG Bin1, LIU Hemei2, MAO Bigang3, GAO Suwei3, XU Hongbin1, GE Jiangui1,* . QTL Analysis on Apical Spikelet Abortion in Rice[J]. Chinese Journal OF Rice Science, 2011 , 25(5) : 561 -564 . DOI: 10.3969/j.issn.10017216.2011.05.016

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