Multicellular living organisms and unmodified parts thereof and – Plant – seedling – plant seed – or plant part – per se – Higher plant – seedling – plant seed – or plant part
Reexamination Certificate
2000-08-21
2002-12-03
Fox, David T. (Department: 1638)
Multicellular living organisms and unmodified parts thereof and
Plant, seedling, plant seed, or plant part, per se
Higher plant, seedling, plant seed, or plant part
C800S268000, C800S264000, C435S430000
Reexamination Certificate
active
06489543
ABSTRACT:
BACKGROUND OF THE INVENTION
The genus Brassica includes one of the world's most important oilseed crops, canola. Considerable effort has been made to improve its agronomic qualities by selective breeding techniques. The goals for improving this crop include increased yield and disease resistance, in addition to altering the oil content and composition.
BRIEF SUMMARY OF THE INVENTION
The present invention provides a novel
Brassica napus oleifera annua
variety, an agronomically superior high oleic canola variety having a unique fatty acid profile, designated “SVO95-08,” also known as Nex-700. Also provided in the present invention are seeds of canola variety SVO95-08, plants produced from seeds of SVO95-08, and tissue cultures of regenerable cells of the canola plant grown from SVO95-08 seed.
Definitions
As used herein, the following definitions are provided:
Definitions of Classification Terms for Variety Description of Canola Cultivar SVO95-08
1.0 Classification
1.1 Botanical and common name: The genus, species, and type define the botanical classification of the variety.
1.2 Type of variety: The type of variety defines the method of propagation of the variety as: Open pollinated (planted in isolation and plants allowed to inter mate), Hybrid (made by crossing two or more inbred parents), Self-pollinated (plants of the variety do not inter mate, but rather are completely self-pollinating), First generation synthetic (the variety sold is the product of the first generation of all possible intercrosses between a selected set of 3 or more inbred parents), Advanced generation synthetic (the variety sold is the product of repeated inter mating generations from a first generation synthetic).
2.0 Seasonal Type
Two seasonal variety types exist: Spring (planted in the spring to early summer, flower mid-summer and harvested in the late summer to fall) and Winter (planted in the late summer to fall, stay in a rosette form without flowering over the winter, flower late spring and harvested mid to late summer).
3.0 Characteristics of Plants Before Flowering
3.1 Cotyledon width: The cotyledons are leaf structures that form in the developing seeds of canola and which make up the majority of the mature seed of these species. When the seed germinates, the cotyledons are pushed out of the soil by the growing hypocotyl (segment of the seedling stem below the cotyledons and above the root) and they unfold as the first photosynthetic leafs of the plant. The width of the cotyledons varies by variety and can be classified as narrow, medium, or wide.
3.2 Seedling growth habit: The rosette consists of the first 2-8 true leaves and a variety can be characterized as having a strong rosette (closely packed leaves) or a weak rosette (loosely arranged leaves).
3.3 Stem—intensity of anthocyanin coloration: The stems and other organs of canola plants can have varying degrees of purple coloration which is due to the presence of anthocyanin (purple) pigments. The degree of coloration is somewhat subject to growing conditions, but varieties typically show varying degrees of coloration ranging from: absent (no purple)/very weak to very strong (deep purple coloration).
3.4 Leaf—development of lobes: The leaves on the upper portion of the stem can show varying degrees of development of lobes which are disconnected from one another along the petiole of the leaf. The degree of lobing is variety specific and can range from absent (no lobes)/weak through very strong (abundant lobes).
3.5 Leaf—indentation of margin: The leaves on the upper portion of the stem can also show varying degrees of serration along the leaf margins. The degree of serration or indentation of the leaf margins can vary from absent (smooth margin)/weak to strong (heavy saw-tooth like margin).
3.6 Leaf—blade color: The color of the leaf blades is variety specific and can range from light to medium dark green to blue green.
3.7 Leaf—pubescence: The leaf pubescence is the degree of hairiness of the leaf surface and is especially useful for distinguishing between the canola species. There are two main classes of pubescence which are glabrous (smooth
ot hairy) and pubescent (hairy) which mainly differentiate between the
B. napus
and
B. rapa
species, respectively.
3.8 Leaf—glaucosity: This refers to the waxiness of the leaves and is characteristic of specific varieties although environment can have some effect on the degree of waxiness. This trait can range from absent (no waxiness)/weak through very strong. The degree of waxiness can be best determined by rubbing the leaf surface and noting the degree of wax present.
3.9 Leaf—attachment to the stem: This trait is especially useful for distinguishing between the two canola species. The base of the leaf blade of the upper stem leaves of
B. rapa
completely clasp the stem whereas those of the
B. napus
only partially clasp the stem. Those of the mustard species do not clasp the stem at all.
3.10 Leaf—surface: The leaf surface can also be used to distinguish between varieties. The surface can be smooth or rugose (lumpy) with varying degrees between the two extremes.
4.0 Characteristics of Plants After Flowering
4.1 Flowering date: This is measured by the number of days from planting to the stage when 50% of the plants in a population have one or more open flowers. This varies from variety to variety.
4.2 Plant height: This is the height of the plant at the end of flowering if the floral branches are extended upright (i.e., not lodged). This varies from variety to variety and although it can be influenced by environment, relative comparisons between varieties grown side by side are useful for variety identification.
4.3 Growth habit: At the end of flowering, the angle relative to the ground surface of the outermost fully expanded leaf petioles is a variety specific trait. This trait can range from erect (very upright along the stem) to prostrate (almost horizontal and parallel with the ground surface).
4.4 Flower buds—location: The location of the unopened flower buds relative to the adjacent opened flowers is useful in distinguishing between the canola species. The unopened buds are held above the most recently opened flowers in
B. napus
and they are positioned below the most recently opened flower buds in
B. rapa.
4.5 Petal color: The petal color on the first day a flower opens can be a distinguishing characteristic for a variety. It can be white, varying shades of yellow or orange.
4.6 Anther dotting: The presence/absence of anther dotting (colored spots on the tips of anthers) and if present, the percentage of anther dotting on the tips of anthers in newly opened flowers is also a distinguishing trait for varieties.
4.7 Anther arrangement: The orientation of the anthers in fully opened flowers can also be useful as an identifying trait. This can range from introse (facing inward toward pistil), erect (neither inward not outward), or extrose (facing outward away from pistil).
4.8 Anther fertility: This is a measure of the amount of pollen produced on the anthers of a flower. It can range from sterile (such as in female parents used for hybrid seed production) to fertile (all anthers shedding).
4.9 Silique (pod)—type: This is typically a bilateral single pod for both species of canola and is not really useful for variety identification within these species.
4.10 Silique (pod)—length: This is the length of the fully developed pods and can range from short to medium to long. It is best used by making comparisons relative to reference varieties.
4.11 Silique (pod)—width: This is the width of the fully developed pods and can range from narrow to medium to wide. It is best used by making comparisons relative to reference varieties.
4.12 Silique (pod)—habit: This is also a trait which is variety specific and is a measure of the orientation of the pods along the racemes (flowering stems). This trait can range from erect (pods angled close to racemes) through horizontal (pods perpendicular to racemes) through arching (pods show distinct arching habit).
4.13 Silique (pod)—length of beak: The bea
Agrigenetics Inc.
Fox David T.
Moonan Francis
Saliwanchik Lloyd & Saliwanchik
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