[QTL analysis of starch content in maize kernels using the trisomic inheritance of the endosperm model]

[QTL analysis of starch content in maize kernels using the trisomic inheritance of the endosperm model] Research Abstract Details 

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[QTL analysis of starch content in maize kernels using the trisomic inheritance of the endosperm model] Abstract Text:

Yong-Bin Dong,Yu-Ling Li,Su-Zhen Niu,

Two hundred and fifty-nine F2:3 families, developed from the cross between a dent corn inbred line Dan232 and a popcorn inbred line N04, were evaluated for its starch content in the replicated experiments under two environments. One hundred and eighty three pairs of SSR markers were selected to construct a genetic linkage map, covering 1,762.2 cM (centiMorgan) and on the average distance of 9.63 cM between the markers. Quantative trait loci (QTL) were identified and its effects were analyzed, using the triploid endosperm genetic model and the interval mapping method. Ten QTL, detected on chromosome 1, 3, 4, 5 and 7 respectively, were mapped in spring and in summer. All detected QTL in spring were also identified in summer. The phenotypic variation of a single QTL varied from 4.74% to 11.26%, and the total contributions of all QTL under two environments were 36.84% and 72.65%, respectively. Two QTL of all identified QTL in spring showed over-dominant effects, but additive and partially dominant in summer respectively, the amounts of other QTL showing Additive, partially dominant and over-dominant effects were 2, 1, 5 respectively. The positive alleles of three QTL were contributed by the normal corn parent Dan232, and the other positive alleles were contributed by the popcorn parent N04.

[QTL analysis of starch content in maize kernels using the trisomic inheritance of the endosperm model] Publishing Authors By Initials

YB Dong,YL Li,SZ Niu,

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[QTL analysis of starch content in maize kernels using the trisomic inheritance of the endosperm model] Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Yi chuan = Hereditas / Zhongguo yi chuan xue hui b

VOLUME: 28

Page Numbers: 1401-6

Journal Abbreviation: Yi Chuan

ISSN: 0253-9772

DAY: 13

MONTH: Nov

YEAR: 2006

[QTL analysis of starch content in maize kernels using the trisomic inheritance of the endosperm model] Information

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LANGUAGE: chi

NlmUniqueID: 9436478

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AFFILIATION: Agronomy College of Henan Agricultural University, Zhengzhou 450002, China.

Country: China

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MEDLINETA: Yi Chuan

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