Studies on the Inheritance of Locule Formation in Tomatoes (Lycopersicon esculentum Mill.)

Yue Li; Tianlai Li; Dan Wang

doi:10.1016/S1673-8527(07)60116-7

Volume 34 Issue 11

Nov. 2007

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Article Navigation > Journal of Genetics and Genomics > 2007 > 34(11): 1028-1036

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Studies on the Inheritance of Locule Formation in Tomatoes (Lycopersicon esculentum Mill.)

doi: 10.1016/S1673-8527(07)60116-7

Yue Li^{a, b},
Tianlai Li^a,
Dan Wang^a

a
College of Horticulture, Shenyang Agricultural University, Key Laboratory of Protected Horticulture of Liaoning Province, Shenyang 110161, China
b
College of Environment, Liaoning University, Shenyang 110036, China

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Corresponding author: E-mail address: ltl@syau.edu.cn (Tianlai Li)
Received Date: 2007-03-13
Accepted Date: 2007-07-27

Available Online: 2007-11-22

Publish Date: 2007-11-20

Abstract

Abstract

To fully understand the tomato ovary locule formation of inheritance, two varieties, ovary multi-locule (MLK1) and few-locule (FL1), were used in these studies. Using reciprocal cross, self-cross, and backcross, we have constructed various groups to seek the genetic law and mechanisms of tomato locule formation, for modifying the tomato breeding theory. The parental and the resulting F₁ and F₂ generations have been used to examine the heredity of the locule number. The results showed that few-locule was incompletely dominant. The data from backcross demonstrated a significant effect on the locule number, whereas, the reciprocal cross showed an insignificant effect. Not surprisingly, the locule number was controlled by nuclear genomes, not by exogenous substances. The model that inherited the locule number belonged to the additive-dominant model: additive effects played a very important role and were partially dominant. In addition, the results revealed that the locule number in tomato was mainly controlled by a single gene, whereas, it was modulated by a number of other genes. Finally, the general inheritability and narrow inheritability of the locule number were 69.44% and 52.98%, respectively.
- tomato,
- locule number,
- inheriting model,
- number of genes,
- inheritability

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References(50)

References

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