Evaluating the genetic basis of multiple-locule fruit in a broad cross section of tomato cultivars.

Evaluating the genetic basis of multiple-locule fruit in a broad cross section of tomato cultivars. Research Abstract Details 

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Evaluating the genetic basis of multiple-locule fruit in a broad cross section of tomato cultivars. Abstract Text:

L S Barrero,S D Tanksley,

Lycopersicon esculentum accessions bearing fasciated (multiloculed) fruit were characterized based on their flower organ and locule number phenotypes. Greenhouse and field evaluations indicate that increases in locule number are associated with increases in the number of other floral organs (e.g., sepals, petals, stamens) in all stocks. F1 complementation, F2 segregation analysis, and genetic mapping indicate that at least four loci account for increases in the number of carpels/locules in these stocks. The most significant of these map to the bottoms of chromosomes 2 and 11 and correspond to the locule number and fasciated loci. All stocks tested were fixed for mutations at the fasciated locus, which maps to the 0.5-cM interval between the markers T302 and cLET24J2A and occurs in at least three allelic forms (wild type and two mutants). One of the fasciated mutant alleles is associated with nonfused carpels and repressed recombination and may be due to a small inversion or deletion. The other two loci controlling locule number correspond to the lcn1.1 and lcn2.2 loci located on chromosomes 1 and 2, respectively.

Evaluating the genetic basis of multiple-locule fruit in a broad cross section of tomato cultivars. Publishing Authors By Initials

LS Barrero,SD Tanksley,

For similar biological phenomena, cell phenomena, and immunity: immunity: antibody specificity: species specificity research abstracts see: biological phenomena, cell phenomena, and immunity: immunity: antibody specificity: species specificity research

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Evaluating the genetic basis of multiple-locule fruit in a broad cross section of tomato cultivars. Journal Published:

PUBLICATION TYPE: Research Support, U.S. Gov't,

Journal: TAG. Theoretical and applied genetics. Theoretisch

VOLUME: 109

Page Numbers: 669-79

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ISSN: 0040-5752

DAY: 15

MONTH: 05

YEAR: 2004

Evaluating the genetic basis of multiple-locule fruit in a broad cross section of tomato cultivars. Information

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LANGUAGE: eng

NlmUniqueID: 145600

Evaluating the genetic basis of multiple-locule fruit in a broad cross section of tomato cultivars. Keywords Mesh Terms:

KEYWORDS: Species Specificity

MESH TERMS: genetics

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Grant and Affiliation Information for Evaluating the genetic basis of multiple-locule fruit in a broad cross section of tomato cultivars.

AFFILIATION: Department of Plant Breeding, Cornell University, 245 Emerson Hall, Ithaca, NY 14853-1902, USA.

Country: Germany

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MEDLINETA: Theor Appl Genet

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