Genetic Analysis for Fat Content in F₂ Generation of Crosses with Different Genetic Background Soybeans(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:

2011年06期

Page:

916-920

Research Field:

Publishing date:

Info

Title:

Genetic Analysis for Fat Content in F₂ Generation of Crosses with Different Genetic Background Soybeans

Author(s):

LI Sheng-you¹; SONG Shu-hong²

1.Agronomy College of Shenyang Agricultural University，Shenyang 110161;

2.Crops Institute of Liaoning Academy of Agricultural Sciences，Shenyang 110161，Liaoning，China

Keywords:

Soybean; F₂ generation; Fat content; Genetic variation; Transgressive segregation; Agronomic characters

PACS:

S565.1

DOI:

10.11861/j.issn.1000-9841.2011.06.0916

Abstract:

Six hybrid crosses among eleven soybean cultivars with different fat content were used in the study to analyze the genetic variation of fat content in their F₂ generation，and the correlation between fat content，protein content，and main agronomic characters.The results showed that in all crosses the higher the fat content of their parents，the higher the mean values of fat content in F₂ generation，and F₂ mean values had extremely positive correlation with mid-parent.It was found that extensive variation of fat content existed in F₂ generation.The range of genetic variation was closely related with the Degree of Genetic Variety(D.G.V.)of cross and the difference of fat content between their parents.The transgressive rates of fat content in F₂ generation decreased with the increasing of differences between their parents.The fat content in soybean had extremely negative correlation with the protein content，100-seed weight and the lowest pod height，but it had extremely positive correlation with seeds per plant and plant height.

References:

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