Here are sources for more information on the announcement from the FDA

NY Times FDA Announces 16 Brands
In the report, the F.D.A. named for the first time the pet food brands most frequently associated with adverse events. 

In descending order of most incidents of heart disease, the brands are 

Acana,
Zignature
Taste of the Wild
4Health
Earthborn Holistic
Blue Buffalo
Nature’s Domain
Fromm
Merrick
California Natural
Natural Balance
Orijen
Nature’s Variety
NutriSource
Nutro
Rachael Ray Nutrish

119 dog, 5 cat DCM deaths reported to FDA investigation

A wide range of dog breeds developed DCM. However, all but the top five appeared in fewer than 20 cases.

Pet Food Industry.com

Top 5 dog breeds involved in federal DCM investigation

  1. Golden Retriever – 95 cases
  2. Mixed – 62 cases
  3. Labrador Retriever – 47 cases
  4. Great Dane – 25 cases
  5. Pit Bull – 23 cases

A wide range of dog breeds developed DCM. However, all but the top five appeared in fewer than 20 cases.

No causation found between dog food ingredients and DCM

While the FDA has found these correlations, they have found no causality. Thousands of dogs have eaten the same diets as the dogs stricken with DCM, to no ill effect. FDA lab analysis of grain-free versus conventional dog foods revealed little difference in levels of minerals, amino acids, taurine, protein or other nutrients.

“Another puzzling aspect of the recent spike in DCM cases is that they have occurred just in the last few years,” wrote FDA officials in the update. “The FDA is working with the pet food industry to better understand whether changes in ingredients, ingredient sourcing, processing or formulation may have contributed to the development of DCM."

Stopping grain-free diet, adding taurine helped dogs’ DCM

Speaking of Golden Retrievers and DCM, scientists documented that specific diets were associated with the development of taurine deficiency in that breed, which may increase the risk of dilated cardiomyopathy.

The scientists published the results of their research, “Taurine deficiency and dilated cardiomyopathy in golden retrievers fed commercial diets,” in the journal PLOS ONE.

In the study, 23 out of 24 Golden Retrievers diagnosed with taurine deficiency and dilated cardiomyopathy ate grain-free and/or legume-rich dog food diets. The majority of those dogs’ health improved after diet change and taurine supplementation.

“Taurine deficiency and dilated cardiomyopathy in golden retrievers is likely multifactorial, including a combination of dietary, metabolic and genetic factors,” the researchers, led by a team from the School of Veterinary Medicine University of California - Davis, wrote in their conclusions.

More sources

FDA  FDA Investigation into Potential Link between Certain Diets and Canine Dilated Cardiomyopathy

AKC What the FDA Investigation on Grain Free means

Dog Food Advisor

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