HOME >> BIOLOGY >> NEWS
Breeding programs should incorporate mate choice

The breeding programs widely used to supplement fisheries and conserve endangered species may be flawed. The problem is that while animals usually choose their mates in the wild, they typically do not get a choice when bred in captivity. The benefits of mate choice can include increased resistance to disease among offspring, and new work calls for incorporating mate choice into captive breeding programs.

"Circumventing mate choice is likely to have negative consequences for the genetics of a population," says Claus Wedekind of the University of Edinburgh in the UK in the October issue of Conservation Biology. "Males often are not equal with respect to genetic quality and female mate choice may be taking this into account."

Wedekind and two co-authors had previously shown that mate choice can increase the survival of young whitefish, which are bred in hatcheries. Like many fish species, during the breeding season male whitefish develop hundreds ornamental structures called breeding tubercles all over their bodies. Although these tiny, colorless tubercles may look insignificant, they are a powerful predictor of how well a male's young will survive: 12% more embryos survived a bacterial epidemic (Pseudomonas fluorescens) when their fathers had larger breeding tubercles (tubercle size ranged from about 50 to 400 microns).

Currently, most breeding programs for small populations focus on preserving genetic variation by minimizing inbreeding. Wedekind argues that as a population grows, managers should also start preserving genetic quality by incorporating mate choice into the breeding program. However, increasing genetic quality is likely to reduce genetic variation, which means managers will need to work out the optimal compromise between the two goals, he says.

Ways to incorporate mate choice into breeding programs include allowing:

    -- free mate choice for monogamous species,
    -- limited mate choice either by presenting s
    '"/>


Contact: Claus Wedekind
c.wedekind@ed.ac.uk
44-131-650-77-06
Society for Conservation Biology
24-Sep-2002


Page: 1 2

Related biology news :

1. Careful Honeybee Breeding Combats Tracheal Mite Pests
2. 4 October press briefing to focus on minority recruitment to science and engineering programs
3. HHMI, NIBIB/NIH to invest up to $35 million in interdisciplinary Ph.D. programs
4. Kaposis sarcoma virus reprograms blood vessel cells into lymphatic cells
5. HHMI international programs build science capacity in developing countries
6. Canada, US launch collaborative research programs for circulatory and respiratory health
7. UB study finds early nutritional modification programs metabolism, predisposes to obesity
8. UCLA researchers show HIV doubles tuberculosis caseload; Strong TB treatment programs could curb HIVs effect
9. 32,000 graduate students grade their doctoral programs, poor report cards in career guidance and preparation for teaching
10. Whitaker Foundation to phase out grant programs
11. Two programs will follow up on Human Genome Project

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/16/2017)... 16, 2017  Veratad Technologies, LLC ( www.veratad.com ), ... and identity verification solutions, announced today they will participate ... May 15 thru May 17, 2017, in ... Trade Center. Identity impacts the lives ... today,s quickly evolving digital world, defining identity is critical ...
(Date:4/19/2017)... 2017 The global military biometrics ... marked by the presence of several large global players. ... five major players - 3M Cogent, NEC Corporation, M2SYS ... nearly 61% of the global military biometric market in ... global military biometrics market boast global presence, which has ...
(Date:4/13/2017)... According to a new market research report "Consumer IAM Market by ... Service, Authentication Type, Deployment Mode, Vertical, and Region - Global Forecast to ... USD 14.30 Billion in 2017 to USD 31.75 Billion by 2022, at ... ... MarketsandMarkets Logo ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... AMRI, a global ... industries to improve patient outcomes and quality of life, will now be offering ... being attributed to new regulatory requirements for all new drug products, including the ...
(Date:10/11/2017)... ... October 11, 2017 , ... At ... Purple announced Dr. Suneel I. Sheikh, the co-founder, CEO and chief research scientist ... has been selected for membership in ARCS Alumni Hall of Fame . ...
(Date:10/11/2017)... ... ... is a basic first aid supply for any work environment, but most personal eye wash ... if a dangerous substance enters both eyes? It’s one less decision, and likely quicker response ... piece. , “Whether its dirt and debris, or an acid or alkali, getting anything in ...
(Date:10/11/2017)... Md. (PRWEB) , ... October 11, 2017 , ... ... digital pathology, announced today it will be hosting a Webinar titled, “Pathology is ... Advanced Pathology Associates , on digital pathology adoption best practices and how Proscia ...
Breaking Biology Technology:
Cached News: