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Compositions and methods for manipulating the development of plants

A plant and auxin technology, applied in botany equipment and methods, biochemical equipment and methods, chemical instruments and methods, etc., can solve the unresolved problems of scion vitality and basic mechanism of flowering

Inactive Publication Date: 2018-09-28
THE NEW ZEALAND INST FOR PLANT & FOOD RES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Despite the M9 rootstock being so widely used and the subject of numerous studies, the underlying mechanisms by which dwarf rootstocks control scion vigor and flowering remain unresolved

Method used

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  • Compositions and methods for manipulating the development of plants
  • Compositions and methods for manipulating the development of plants
  • Compositions and methods for manipulating the development of plants

Examples

Experimental program
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Embodiment Construction

[0277] The present invention provides methods and materials for producing or selecting plants having at least one dwarf-associated phenotype.

[0278] As shown in Table 1 below, the dwarfing-associated phenotype may be manifested in the produced or selected plants, or may be manifested in the scion grafted onto the plant used as rootstock.

[0279] Table 1.

[0280]

[0281] The dwarfing-associated phenotype may be selected from:

[0282] a) Altered auxin transport,

[0283] b) auxin transport is slower,

[0284] c) reduced top dominance,

[0285] d) altered xylem / phloem ratio,

[0286] e) increased number of phloem elements,

[0287] f) phloem elements are smaller,

[0288] g) thicker bark,

[0289] h) a more bushy habit,

[0290] i) reduced root mass,

[0291] j) reduced vitality,

[0292] k) less vegetative growth,

[0293] l) branch growth terminates earlier,

[0294] m) earlier flowering ability,

[0295] n) precocious,

[0296] o) earlier type change,

[...

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Abstract

The invention provides a methods and materials for producing and selecting plants with at least one dwarfing-associated phenotype. The methods and materials relate to altering the expression, or activity, of an ARF3 poypeptide in the plant, and selecting plants with altered the expression, or activity, of an ARF3 poypeptide. The invention also provides plants produced or selected by the methods. The methods also involve crossing plants of the invention with other plants to produce further plants with at least one dwarfing-associated phenotype.

Description

technical field [0001] The present invention relates to compositions and methods for manipulating plant development. Background technique [0002] Dwarfing rootstocks have revolutionized the yield of some tree and vine crops by allowing high density planting (increased fruit production early in orchard establishment) (Ferree and Carlson 1987; Webster and Wertheim 2003; Gregory and George 2011). The widespread use of dwarfing rootstocks has led to steady increases in apple production efficiency over the past century (Hirst and Ferree 1995; Webster 1995). [0003] 'Malling9' ('M9') is the most commonly used apple dwarf rootstock in commercial and home orchards (Webster 1995). 'M9', originally named 'Jaune de Metz', was discovered in the 19th century as a single seedling and cloned as a rootstock for its precocious and vigor-controlling effects on grafted scions (Carrière 1897). At the beginning of the 20th century, all apple rootstocks grown in Western Europe were collected ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N15/82A01H1/06C12N15/67C12Q1/6895
CPCC12N15/67C07K14/415C12N15/8261Y02A40/146A01H6/7418C12N15/827C12N15/8294C12Q1/6895C12Q1/68C12N15/8223C12N15/8241
Inventor T·M·福斯特
Owner THE NEW ZEALAND INST FOR PLANT & FOOD RES LTD
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