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:4/19/2017)... 19, 2017 The global military ... is marked by the presence of several large global ... by five major players - 3M Cogent, NEC Corporation, ... for nearly 61% of the global military biometric market ... the global military biometrics market boast global presence, which ...
(Date:4/13/2017)... UBM,s Advanced Design and Manufacturing event in ... and evolving technology through its 3D Printing and Smart ... the expo portion of the event and feature a ... on trending topics within 3D printing and smart manufacturing. ... will take place June 13-15, 2017 at the Jacob K. ...
(Date:4/11/2017)... -- Research and Markets has announced the addition of ... offering. ... market to grow at a CAGR of 30.37% during the period ... has been prepared based on an in-depth market analysis with inputs ... growth prospects over the coming years. The report also includes a ...
Breaking Biology News(10 mins):
(Date:5/23/2017)... ... May 23, 2017 , ... ... source of human cardiovascular cells for research and the development of cardiac ... possible to generate large numbers of cardiomyocytes (hPSC-CMs). Due to varying differentiation ...
(Date:5/23/2017)... USA (PRWEB) , ... May 22, 2017 , ... ... Optics and Photonics 2017 in San Diego, California, this August will feature ... solar fuels, and autonomous vehicles. , SPIE Optics and Photonics, the largest multidisciplinary ...
(Date:5/23/2017)... ... May 23, 2017 , ... Kathy Goin is ... Clinical Operations. She brings years of expertise in establishing and leading clinical operations ... as a licensed occupational therapist, through a variety of leadership roles in Clinical ...
(Date:5/23/2017)... ... 2017 , ... Customers often prefer PLC and network ... METTLER TOLEDO has released two new videos that show how they have solved ... ACT350 into Siemens and Allen Bradley PLCs is easy and fast. ...
Breaking Biology Technology:
Cached News: