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Selective Breeding: Definition & Significance | Glossary

What Does "Selective Breeding" Mean?

Definition of "Selective breeding"

Selective breeding is when humans choose specific plants or animals with desired traits to reproduce. This process creates new generations with those preferred characteristics. For example, farmers might pick corn plants that grow the biggest ears to plant next season, or dog breeders might pair dogs with the gentlest personalities.

Key points:

  • It's also called artificial selection
  • Humans have used this method for thousands of years to improve crops and livestock
  • It helps create better food sources and specialized animal breeds
  • Common examples include seedless watermelons, dairy cows that produce more milk, and different dog breeds

This natural process takes many generations to show results, but it has helped create most of the foods we eat and animals we keep as pets today.

Cite this definition

"Selective breeding." TRVST Glossary Entry, Definition and Significance. https://www.trvst.world/glossary/selective-breeding/. Accessed loading....

How Do You Pronounce "Selective Breeding"

The term "selective breeding" breaks down into two simple parts. Say "suh-LEK-tiv BREED-ing" with emphasis on "LEK" in selective and "BREED" in breeding.

The first word "selective" flows smoothly - start with a soft "suh" sound, stress the middle "lek" part, and end with "tiv." The second word "breeding" starts with a clear "br" sound, followed by a long "ee" as in "seed," and ends with a soft "ing."

For American English speakers, the "r" in "breeding" is more pronounced, while British English speakers may soften it slightly. Both versions are correct and widely understood.

What Part of Speech Does "Selective Breeding" Belong To?

  • Noun Phrase (compound noun)
  • Can function as a verbal noun (gerund) when used in progressive contexts
  • Functions as an adjective phrase when modifying another noun (e.g., "selective breeding techniques")

Example Sentences Using "Selective breeding"

  1. Farmers use selective breeding to develop crops that resist disease.
  2. The selective breeding of dogs has created many different breeds with specific traits.
  3. Scientists study selective breeding patterns in endangered species to maintain genetic diversity.

Key Features and Methods of Selective Breeding

  • Trait Selection: Farmers and scientists pick specific traits in plants or animals (like disease resistance in crops or higher milk production in cows) to make stronger offspring. This helps create food security and reduces waste in farming.
  • Controlled Mating: Breeders carefully choose which plants or animals will reproduce together based on desired features. For example, breeding drought-resistant corn varieties helps conserve water and protect biodiversity in dry regions.
  • Multi-Generation Process: Selective breeding takes several generations to strengthen wanted traits. Each new generation becomes better adapted to local conditions and more sustainable to raise.
  • Natural Method: Unlike genetic modification, selective breeding works with nature's existing traits. This process supports biodiversity by developing varieties that need fewer pesticides and can adapt to climate change.

Impact of Selective Breeding on Agricultural Biodiversity

Selective breeding steps up to meet big farm challenges today. Farmers are raising crops that tough it out through drought and strange weather. This steadies our food sources. For instance, in India, they're growing wheat that doesn't sweat it under scorching temperatures. This keeps harvests hearty. Down in South America, they've got coffee plants that laugh off diseases. That's a real win for the farmers' pockets.

Over in Mexico, locals aren't just sitting back. They're getting their hands dirty, raising corn that fits right in with their unique piece of land. From high hills to low valleys, these crops ask for less – fewer chemicals, less water. It's a money-saver for the small-time farmer and it's a boon for our crop diversity too. That's how they're keeping ahead of the curve when the weather decides to throw a curveball.

Etymology of Selective Breeding

The term "selective breeding" combines two distinct words with rich histories. "Selective" stems from the Latin "selectus," meaning "chosen" or "picked out." This Latin root emerged around the 1500s. "Breeding" derives from Old English "bredan," meaning "to produce or develop offspring."

The combined phrase gained prominence in the 1800s, particularly after Charles Darwin's work. Darwin used the term extensively in "On the Origin of Species" (1859) to explain how farmers and gardeners had long modified plants and animals through careful selection.

  • Before Darwin: People used terms like "methodical selection" or "artificial selection"
  • 1800s: "Selective breeding" becomes the standard scientific term
  • Modern use: Sometimes called "artificial selection" in scientific contexts

Fun fact: While the term itself is relatively modern, the practice dates back to ancient civilizations. Early farmers in the Fertile Crescent used these methods around 10,000 BCE, long before they had a specific name for it.

Evolution of Selective Breeding Practices Through Time

Around 12,000 years ago, early farmers in the rich soils of the Fertile Crescent were handpicking the heartiest wheat seeds to plant for the next harvest. Their keen eyes spotted plants bearing plumper grains, and they cultivated these selections. In a similar vein, indigenous people in Mexico coaxed a wild grass into hearty corn cobs, while rice growers in China honed in on strains that prospered in their lush, waterlogged paddies, laying the foundation for a food staple that sustains vast populations.

Leap forward to the 1760s in England, where Robert Bakewell pioneered precise livestock breeding. His discriminating choices and meticulous records elevated the standards for sheep and cattle, particularly with the robust Leicester Longwool sheep. Then there's Gregor Mendel, the 19th-century monk whose pea plant experiments became the cornerstone of genetics, making sense of how traits move through generations. Thomas Knight, riding the wave of these insights, initiated over two hundred apple varieties in the late 18th and early 19th centuries, contributing to the diverse fruit bounty we savor today.

Fascinating Facts About Selective Breeding and Crop Development

Modern bananas are seedless clones due to selective breeding. Wild bananas contain up to 80 hard seeds per fruit. Commercial varieties like the Cavendish must be grown through vegetative propagation (Perrier et al., 2019)[1]

The Beneforté broccoli variety, developed through selective breeding, contains 2-3 times more glucoraphanin than standard broccoli. This compound converts to sulforaphane, which has anti-cancer properties (Traka et al., 2013)[2]

Selective breeding appears frequently in modern media discussions about biodiversity, agriculture, and environmental sustainability. The topic often intersects with debates about food security, genetic diversity, and traditional farming practices.

  1. Food, Inc. (2008 Documentary) This film examines how selective breeding in commercial chicken farming led to birds that grow faster but face health issues. It sparked public discussions about industrial agriculture's impact on animal welfare.
  2. The Omnivore's Dilemma by Michael Pollan The book explores how selective breeding created modern corn varieties, highlighting the reduction in genetic diversity in our food system.
  3. Seeds of Time (2013 Documentary) Features scientist Cary Fowler's work preserving crop diversity through seed banks, addressing the limitations of selective breeding in commercial agriculture.
  4. BBC's "Follow the Food" Series Examines how selective breeding helps create climate-resistant crop varieties, presenting both benefits and challenges of this practice.
  5. National Geographic's "Future of Food" Series Discusses traditional selective breeding methods versus modern genetic techniques in creating sustainable food sources.
  6. The Botany of Desire (PBS Documentary) Shows how human preferences in selective breeding shaped four common plants: apples, tulips, marijuana, and potatoes.

These media representations help explain complex agricultural concepts to general audiences while connecting them to broader environmental discussions. They often emphasize the balance between agricultural efficiency and maintaining genetic diversity.

Selective Breeding In Different Languages: 20 Translations

LanguageTranslationLanguageTranslation
SpanishCría selectivaFrenchSélection artificielle
GermanSelektive ZüchtungItalianRiproduzione selettiva
PortugueseReprodução seletivaRussianСелективное разведение
Chinese选择性育种 (xuǎnzé xìng yùzhǒng)Japanese選択育種 (sentaku ikushu)
Korean선택 육종 (seontaeg yugjong)Arabicالتربية الانتقائية (at-tarbiya al-intiqa'iya)
DutchSelectieve fokkerijSwedishSelektiv avel
PolishHodowla selektywnaTurkishSeçici üretim
Hindiचयनात्मक प्रजनन (chayanātmak prajanan)GreekΕπιλεκτική αναπαραγωγή
VietnameseNhân giống chọn lọcThaiการผสมพันธุ์แบบคัดเลือก
Hebrewרבייה סלקטיביתFinnishValikoiva jalostus

Translation Notes:

  1. French uses "artificial selection" rather than "selective breeding"
  2. Chinese, Japanese, and Korean use characters that literally translate to "selection-type breeding"
  3. Arabic and Hindi translations emphasize the selective "choosing" aspect in their terminology
  4. Vietnamese uses a phrase that means "breeding with selection"
  5. Thai's translation breaks down to "breeding by selection method"

Selective Breeding Variations

TermExplanationUsage
Artificial selectionThe scientific term for selective breeding. Means the same thing but emphasizes human intervention in the process.Common in textbooks and scientific articles
Line breedingA specific type of selective breeding that focuses on maintaining desired traits within a family line of plants or animalsOften used by farmers and animal breeders
Controlled breedingEmphasizes the managed aspect of the breeding processUsed in agriculture and horticulture contexts
Directed evolutionModern term that highlights how humans guide genetic changes over timePopular in modern scientific writing and education
Genetic selectionFocuses on the genetic aspect of choosing specific traitsCommon in both scientific and general contexts

Selective Breeding Images and Visual Representations

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FAQS

1. How does selective breeding differ from genetic modification (GMO)?

Selective breeding works with natural reproduction, where farmers choose plants or animals with desired traits to breed together. Unlike GMOs, it doesn't involve changing genes in a laboratory. This traditional method has given us foods like sweet corn from wild maize and seedless watermelons from regular watermelons.

2. What role does selective breeding play in sustainable agriculture?

Selective breeding helps create crops that need less water, resist pests naturally, and adapt to changing climates. For example, drought-resistant wheat varieties help farmers use less water while maintaining good harvests. This supports sustainable farming by reducing resource use and chemical pesticides.

3. Can selective breeding help reduce food waste?

Yes, selective breeding creates fruits and vegetables that last longer after harvest and resist bruising during transport. Examples include tomatoes that stay fresh longer and apples that don't brown quickly when cut. These improvements help reduce food waste in stores and homes.

4. What are the potential risks of selective breeding to biodiversity?

Selective breeding can reduce genetic diversity when farmers focus on just a few varieties with desired traits. This happened with banana crops, where most commercial bananas are genetically identical clones, making them vulnerable to diseases. Maintaining seed banks and heritage breeds helps protect biodiversity.

1

Perrier, X., De Langhe, E., Donohue, M., Lentfer, C., Vrydaghs, L., & Bakry, F. (2019). Multidisciplinary perspectives on banana (Musa spp.) domestication. Proceedings of the National Academy of Sciences, 108(28), 11311-11318.

2

Traka, M. H., Saha, S., Huseby, S., Kopriva, S., Walley, P. G., Barker, G. C., ... & Mithen, R. F. (2013). Genetic regulation of glucoraphanin accumulation in Beneforté® broccoli. New Phytologist, 198(4), 1085-1095.

At high risk of extinction; requires protection.
Species change over time through natural selection.
Variety of genes within species; key for adaptation.
Extended period of low rainfall causing water scarcity.
Offspring of two different species, often showing mixed traits.
Reliable access to enough nutritious food for a healthy life.
Animal that eats both plants and animals for nutrition.
Altering DNA to create desired traits in living things.
Adapting wild species for human use through breeding.
Modifying DNA to create organisms with new traits.
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